Re: PIK microcontroller development issues

2009-12-28 Thread Les
Hi, all,
Thanks to Tom, Chit, and g.
I have to go get my Christmas lights down and stowed, clean up some
place for relatives to stay, and then I'll get back on this.  I didn't
even thing to look for another mailing list, DUHHH!!!

I'll try all the hints, gather more information and subscribe to the
FEL list as soon as my melons (honey dos) are complete.  For the
non-americans, honeydew is a delicious melon.  The pun is that wives
give us a list of things to do, Honey, do this please?

Regards,
Les H
On Mon, 2009-12-28 at 04:04 +, g wrote:
 Chitlesh GOORAH wrote:
  On Sun, Dec 27, 2009 at 6:05 PM, g wrote:
 
  Yes the Fedora Electronic Lab mailing list might be helpful for you.
 
 i am already on list. i imagine that Les hlhow...@pacbell.net will soon
 be joining, as well as any members on this list that are interested in
 micro controllers.
 
 from comments you have made in fel list, i felt that you followed this list
 also and would soon hear form you. glad you did not disappoint me. :)
 
 
  sdcc has its binaries in /usr/libexec/sdcc in order not to create
  conflicts with other general software.
  
  can you create a file /etc/profile.d/mypiklab.sh
  and add the following contents
  #
  export PATH=$PATH:/usr/libexec/sdcc
  #--
 
 can, and will.
 
  Then reboot and try piklab again. If you still have issues with it,
  please post an example (on FEL's mailing list) so that we can
  reproduce this error.
 
 will do tonight and post results to fel tsl.
 
 
  also, since you are interested in microcontroller programming, do check:
  * gnusim8085
  * gsim85
  * avra
  * mcu8081ide
 
 i had many of the fel additions, above included, tho not all check out yet,
 in fel f8 and f11, but do to 'auto upgrade' crashing and trashing system
 beyond practical recovery, i am currently rebuilding under f12.
 
 
  PS: I'll be offline in the month of January.
  https://fedoraproject.org/wiki/Vacation
 
 enjoy your vacation.
 
 
  Please post your FEL related issues on FEL's mailing list.
 
 when i find them, i will. fel tsl has help in keeping them to a minimum.
 
 
 later, chit.
 
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PIK microcontroller development issues

2009-12-26 Thread Les
 to discover any or all of the following:
A. shared object file name
B. install paths
C. errors being generated if they don's show up in the gpsim 
windows
(clearly the cause of not quoting error messages here other than the one
that gpsim couldn't find the processor which appears in two different
forms depending on how I invoke it).
2. A process to get gpsim working on Fedora (this seems to be a F11
issue because I have had little luck finding solutions on the web
despite working on this for weeks.)
3. Once past 1 and 2, integrating the works for F11.

Maybe I can get some of you interested in neat microcontroller
programming.  These little mcpus are really quite powerful and neat for
all kinds of jobs.

Thanks for any and all help,
Les H

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Re: man 3 switch

2009-11-16 Thread Les
 and truncation errors can occur
at intervals of 38, 72 and 134 if I remember correctly, at least
something like these intervals where the rounding function will produce
one number in one implementation and a different number in another.  I
have had people argue with me about my code being wrong, even after I
would write a test case and show them that the problem wasn't the code,
but rather the choice of compiler and its resultant choice of floating
point implementation.

It gets more arcane with chained calculations.  Each time you multiply
two numbers together, there is an associated rounding error.  But it is
generally quite small, and in most processors moved out a few bits at
the stated resolution.  However a write to memory forces the truncation
at the stated accuracy, and then it begins to affect really complex
algorithms, such as the FFT or some arc calculation programs that use
squares and square roots.  Or in some graphics calculations where the
round off and truncation errors lead to additional distortion in the
periphery of the visual field due to the combination of those errors and
the planarity (sp?) error of presenting a spherical result on a flat
plane. i.e. a lens product on a monitor.  Maybe the photons particles
don't perform that task well either.

But how would you categorize all these different effects, provide
examples, show the results in the several cases and also hopefully add
some guidance (such as man pages do) for the combinatorial effects?


Regards,
Les H

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Recurrent error on yum update

2009-11-13 Thread Les
Hi everyone,
I am getting the following recurrent error on yum update:
ERROR with rpm_check_debug vs depsolve:
kernel-uname-r = 2.6.27.29-170.2.78.fc10.i686 is needed by
kmod-em8300-2.6.27.29-170.2.78.fc10.i686-0.17.3-1.fc10.2.i686
kernel-uname-r = 2.6.27.29-170.2.79.fc10.i686 is needed by
kmod-em8300-2.6.27.29-170.2.79.fc10.i686-0.17.3-1.fc10.3.i686
kernel-uname-r = 2.6.27.30-170.2.82.fc10.i686 is needed by
kmod-em8300-2.6.27.30-170.2.82.fc10.i686-0.17.3-1.fc10.4.i686
Please report this error at http://yum.baseurl.org/report

And here is what I have from yum:
yum info kernel
Loaded plugins: dellsysidplugin2, refresh-packagekit
Installed Packages
Name   : kernel
Arch   : i586
Version: 2.6.30.5
Release: 43.fc11
Size   : 50 M
Repo   : installed
Summary: The Linux kernel
URL: http://www.kernel.org/
License: GPLv2
Description: The kernel package contains the Linux kernel (vmlinuz), the
core of
   : any Linux operating system.  The kernel handles the basic
functions
   : of the operating system: memory allocation, process
allocation,
   : device input and output, etc.

Name   : kernel
Arch   : i586
Version: 2.6.30.8
Release: 64.fc11
Size   : 50 M
Repo   : installed
From repo  : updates
Summary: The Linux kernel
URL: http://www.kernel.org/
License: GPLv2
Description: The kernel package contains the Linux kernel (vmlinuz), the
core of
   : any Linux operating system.  The kernel handles the basic
functions
   : of the operating system: memory allocation, process
allocation,
   : device input and output, etc.

Name   : kernel
Arch   : i586
Version: 2.6.30.9
Release: 90.fc11
Size   : 50 M
Repo   : installed
From repo  : updates
Summary: The Linux kernel
URL: http://www.kernel.org/
License: GPLv2
Description: The kernel package contains the Linux kernel (vmlinuz), the
core of
   : any Linux operating system.  The kernel handles the basic
functions
   : of the operating system: memory allocation, process
allocation,
   : device input and output, etc.

Available Packages
Name   : kernel
Arch   : i586
Version: 2.6.30.9
Release: 96.fc11
Size   : 21 M
Repo   : updates
Summary: The Linux kernel
URL: http://www.kernel.org/
License: GPLv2
Description: The kernel package contains the Linux kernel (vmlinuz), the
core of
   : any Linux operating system.  The kernel handles the basic
functions
   : of the operating system: memory allocation, process
allocation,
   : device input and output, etc.

And here is the processor information from dmesg:
CPU: Trace cache: 12K uops, L1 D cache: 8K
CPU: L2 cache: 512K
CPU: Physical Processor ID: 0
CPU: Processor Core ID: 0
Intel machine check architecture supported.
Intel machine check reporting enabled on CPU#0.
CPU0: Intel P4/Xeon Extended MCE MSRs (12) available
CPU0: Thermal monitoring enabled
Checking 'hlt' instruction... OK.
ACPI: Core revision 20090320
ftrace: converting mcount calls to 0f 1f 44 00 00
ftrace: allocating 18705 entries in 37 pages
Failed to register trace ftrace module notifier
..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1
CPU0: Intel(R) Pentium(R) 4 CPU 3.00GHz stepping 09
Booting processor 1 APIC 0x1 ip 0x6000
Initializing CPU#1
Calibrating delay using timer specific routine.. 5983.76 BogoMIPS
(lpj=2991880)
CPU: Trace cache: 12K uops, L1 D cache: 8K
CPU: L2 cache: 512K
CPU: Physical Processor ID: 0
CPU: Processor Core ID: 0
Intel machine check architecture supported.
Intel machine check reporting enabled on CPU#1.
CPU1: Intel P4/Xeon Extended MCE MSRs (12) available
CPU1: Thermal monitoring enabled
x86 PAT enabled: cpu 1, old 0x7040600070406, new 0x7010600070106
CPU1: Intel(R) Pentium(R) 4 CPU 3.00GHz stepping 09
checking TSC synchronization [CPU#0 - CPU#1]: passed.
Brought up 2 CPUs
Total of 2 processors activated (11968.03 BogoMIPS).


My question:
Do I need to go to the i686 Kernel? and if so, how do I get yum to do
that, and once it does will my system require a complete rebuild. If so
will yum manage that or will I need to re-install from scratch?



 This system was upgraded via the 10-11 upgrade by yum.

Regards,
Les H

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Re: DVD burning issue

2009-09-27 Thread Les
On Sat, 2009-09-26 at 22:12 +0200, mo wrote:
 On Fri, 2009-09-25 at 17:09 -0400, David Boles wrote:
  On 9/25/2009 1:57 PM, Les wrote:
   Hi, everyone,
 I am having difficulty burning an ISO to try F11 on another computer.
   I want to burn the live iso image to a dvd.
   
 I have tried this several times and get a really stupid error. It
   appears the whole disk is created, and the finished message appears, BUT
   then the software attempts to create the checksum and things go badly.
   
 I have tried this both as my user and superuser, with the same issues.
   
 It appears that the cd/dvd library opens the disk, burns the image,
   then attempts to reopen it exclusively as the raw device for the
   checksum creation without dismounting it so the remount is denied.  But
   maybe I am wrong.  Is anyone else having this kind of problem?  And how
   can this happen as superuser?
   
 Are there any known work-arounds?  I couldn't find a recent version of
   this problem when I looked yesterday.
  
  
  8 snip 8
  
  First:
  
  Why are you trying to burn a Live-CD ISO 
  note the CD part of the name  to a DVD disk? 
 
 Isn't CD functionality supposed to be included in DVD functionality?
 I thought that DVD is sort of backward compatible with CD.
 
 By the way, I have also experienced this Burning issue.
  -- 
Ok, I missed the post asking why I was trying to burn the live-cd ISO.
I didn't see that in the name... Therefore I didn't know it was an
issue.  Meanwhile I downloaded another image and finally found a
bugzilla which said the problem was related to checksum generation for
the image.  I turned off the checksum and was successful in writting the
DVD image, but the system I wanted to check would not boot from its DVD,
due to a bios restriction.  I then came back to my system and attempted
to burn a cdrom, with no success.  Then I added K3b to my system and
used it to burn the cdrom, and succeeded.  It appears that brasero has
some fundamental problems, and the error #12 was returned in all cases
of trying to burn the image, and the image would not work.

However by turning off the checksum plugin of brasero, I was able to get
a dvd and by loading and running k3b I was able to get a CD, so I now
have both, and a lot of junk disks which brasero never finalized,
which I have tossed out.

I'm a dim bulb when it comes to these cd and dvd formats, so I will look
up the differences.  But I do realize that the raw form of the iso image
must include the disk structure, so it would be unlikely to work.

Les H


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DVD burning issue

2009-09-25 Thread Les
Hi, everyone,
I am having difficulty burning an ISO to try F11 on another computer.
I want to burn the live iso image to a dvd.

I have tried this several times and get a really stupid error. It
appears the whole disk is created, and the finished message appears, BUT
then the software attempts to create the checksum and things go badly.

I have tried this both as my user and superuser, with the same issues.

It appears that the cd/dvd library opens the disk, burns the image,
then attempts to reopen it exclusively as the raw device for the
checksum creation without dismounting it so the remount is denied.  But
maybe I am wrong.  Is anyone else having this kind of problem?  And how
can this happen as superuser?

Are there any known work-arounds?  I couldn't find a recent version of
this problem when I looked yesterday.

Regards,
Les H

Here is the log from Brasero (running as superuser)


Checking session consistency (brasero_burn_check_session_consistency
burn.c:1905)
BraseroBurnURI called brasero_job_get_action
BraseroBurnURI called brasero_job_get_action
BraseroBurnURI called brasero_job_set_output_size_for_current_track
BraseroBurnURI stopping
BraseroBurnURI called brasero_job_get_action
BraseroBurnURI called brasero_job_get_session_output_size
BraseroBurnURI output set (IMAGE) image = /tmp/brasero_tmp_6SQW0U.bin
toc = none
BraseroBurnURI called brasero_job_get_action
BraseroBurnURI called brasero_job_get_current_track
BraseroBurnURI called brasero_job_get_input_type
BraseroBurnURI no burn:// URI found
BraseroBurnURI stopping
BraseroLocalTrack called brasero_job_get_action
BraseroLocalTrack called brasero_job_get_action
BraseroLocalTrack called brasero_job_set_output_size_for_current_track
BraseroLocalTrack stopping
BraseroLocalTrack called brasero_job_get_action
BraseroLocalTrack called brasero_job_get_session_output_size
BraseroLocalTrack output set (IMAGE) image = /tmp/brasero_tmp_A4QW0U.bin
toc = none
BraseroLocalTrack called brasero_job_get_action
BraseroLocalTrack called brasero_job_get_current_track
BraseroLocalTrack called brasero_job_get_input_type
BraseroLocalTrack no remote URIs
BraseroLocalTrack stopping
BraseroChecksumImage called brasero_job_get_current_track
BraseroChecksumImage called brasero_job_get_action
BraseroChecksumImage called brasero_job_get_flags
BraseroChecksumImage called brasero_job_get_action
BraseroChecksumImage called brasero_job_get_action
BraseroChecksumImage called brasero_job_get_fd_in
BraseroChecksumImage called
brasero_job_set_output_size_for_current_track
BraseroChecksumImage stopping
BraseroChecksumImage called brasero_job_get_current_track
BraseroChecksumImage called brasero_job_get_action
BraseroChecksumImage called brasero_job_get_flags
BraseroChecksumImage called brasero_job_get_action
BraseroChecksumImage called brasero_job_get_session_output_size
BraseroChecksumImage output set (IMAGE) image
= /tmp/brasero_tmp_BWRW0U.bin toc = none
BraseroChecksumImage called brasero_job_get_action
BraseroChecksumImage called brasero_job_get_action
BraseroChecksumImage called brasero_job_get_input_type
BraseroChecksumImage called brasero_job_set_current_action
BraseroChecksumImage called brasero_job_get_fd_in
BraseroChecksumImage called brasero_job_get_current_track
BraseroChecksumImage called brasero_job_get_current_track
BraseroChecksumImage Starting checksuming
file /home/lesh/Download/Fedora-11-i686-Live.iso (size = 721569792)
BraseroChecksumImage called brasero_job_get_fd_out
BraseroChecksumImage called brasero_job_get_current_track
BraseroChecksumImage Setting new checksum (type = 2)
c432e2bbef845117f3047f79aaf70419 ( before)
BraseroChecksumImage Finished track successfully
BraseroChecksumImage stopping
BraseroLibburn called brasero_job_get_action
BraseroLibburn called brasero_job_get_action
BraseroLibburn unsupported operation
BraseroLibburn deactivating
BraseroLibburn called brasero_job_get_action
BraseroLibburn called brasero_job_get_action
BraseroLibburn called brasero_job_get_device
BraseroLibburn Drive (/dev/sr1) init result = 1
BraseroLibburn called brasero_job_get_flags
BraseroLibburn called brasero_job_get_media
BraseroLibburn called brasero_job_get_fd_in
BraseroLibburn called brasero_job_get_tracks
BraseroLibburn called brasero_job_get_session_output_size
BraseroLibburn called brasero_job_set_current_action
BraseroLibburn burn_drive_convert_fs_adr( /dev/sr1 )
BraseroLibburn called brasero_job_set_dangerous
BraseroLibburn called brasero_job_set_current_action
BraseroLibburn burn_drive_is_enumerable_adr( /dev/sr1 ) is true
BraseroLibburn Async START UNIT succeeded after 0.1 seconds
BraseroLibburn mmc_set_streaming: end_lba=2295103 ,  r=3324 ,  w=5540
BraseroLibburn dvd/bd Profile= 1Bh , obs= 32768 , obs_pad= 1
BraseroLibburn DVD+R pre-track 01 : get_nwa(0), ret= 1 , d-nwa= 0
BraseroLibburn reserving track of 352336 blocks
BraseroLibburn DVD pre-track 01 : demand=721569792, cap=4700372992

BraseroLibburn syncing cache

Re: Music Appreciation teaching program ??

2009-09-25 Thread Les
. 

If you want to know why airplanes fail, examine the outliers, both
those that never fail and those that fail more often or more
catastrophically. 

Once this makes it into mainstream, many things will change for the
better if people stick to analyzing all aspects of all the raw data.

This is why it is impossible to say that formal training is better than
adhoc knowledge, and is the prime reason that both formal training and
informal training are necessary and valuable to all professions.  In
other words we are all have something to share.

Just my opinion.

Les H


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Re: Failed upgrade to Fedora 11 from fedora 10

2009-09-21 Thread Les



On Mon, 2009-09-21 at 10:02 -0400, Rese Soul wrote:
 Hi,
  
 I tried to upgrade from fedora 10 to fedora 11. Every thing seemed
 working fine, but after downloading every thing and rebooting the os
 blocks during startup.
  
 I have thye following error message:
 SELinux: Context System_u:Object_r:xdm_spool_t:so is not valid (left
 unmapped).
  
 I did the same from fedora 8 to fedora 10 and it worked perfectly. I
 used preupgrade.
  
 Thank you
  
I had the same problem earlier.  I had to do the following as
recommended by Daniel Walsh:
*
Les, I believe something went wrong on your upgrade

Could you execute

yum reinstall selinux-policy-targeted

And make sure this succeeds?

If it does then see if you still see these messages.

Also check the following 
semodule -l | grep unconfined

To make sure you have 2 packages.

**

After that it all appeared to work.  I had also done an autorelabel, but
I think what Daniel suggested was the real solution.  All is well now.

 

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Re: Music Appreciation teaching program ??

2009-09-20 Thread Les
On Mon, 2009-09-21 at 05:48 +0930, Tim wrote:
 On Sun, 2009-09-20 at 12:36 -0700, Craig White wrote:
  seriously, there are all sorts of trained and untrained musicians but
  whether a musician has knowledge or education in classical music is
  not necessarily important. The Beatles never knew how to read music.
 
 Just imagine how much better they could have been!  ;-)  Sorry, couldn't
 resist.
 
 Yes, there's a lot of talented people without formal training.  But I
 tend to be more impressed by those with it.  And they're certainly more
 able to work with other trained musicians, as they know how tell each
 other what needs doing.  More, um, thingy, doesn't work too well.
 
  But I find it hard to believe that anyone actually doesn't like
  classical music if they like other forms of music. It is truly
  universal.
 
 Many do, without realising it, as it's used all over the place
 (cartoons, commercials, etc.).  Though I've had many a good piece of
 music ruined for me, now, as I cannot avoid seeing Bugs Bunny and Elmer
 Fudd in my mind's eye while hearing the piece.
 
 Some are actively prejudiced against it.  A friend's teenage son was
 trawling through the ring tones on his phone, commenting on ones he
 liked and disliked.  He liked quite a few classical ones, but the moment
 I enlightened him, he deleted them.  I caught him singing some music
 from a couple of operas, once or twice, but he had no idea.  He'd heard
 them on TV somewhere, but no clue as to what they really were.
 
 Others will never get to hear it, because of the prejudices of those
 around them who will pick the music that's heard.  They moment they hear
 it, they turn off or go away.
 
Several composers were child prodigies, and gifted from birth.  Their
music is heard around the world, and admired.  And yes, many received
classical training once their capabilities were known, but their talent
was present first, and in some cases, I believe schools take on such
talent to further their own resume's.  Its not that training doesn't
matter, as much as the fact that the environment one chooses changes
ones perspective of language and its usage to communicate those wants
needs and desires you speak of.  Yet music is a language of its own.

As are most endeavors in life.  One need not have formal training to
succeed, but one must have access to the accumulated knowledge.
Societies of elitists often try to corral the knowledge, and keep it
captive so that they can continue to be rare and demand great sums for
their skills, while many equally or possibly even better talents never
get the chance.  Programmers are kept from arising by the ACM as much as
they are enabled by it.  Electronics engineers are kept from mutual
knowledge by the IEEE, as much as the members benefit from it.  And yes,
I do know the costs associated with maintaining the libraries (although
given computers and disk sizes, the ability to maintain large libraries
and search through them is falling exponentially faster than the law of
gravity would accelerate a body in space.)

So ones exposure to or non-exposure may reduce the acceptance of
professionals, and minimize their earning potential, but the greater
loser is society at large when preconceptions, such as the one against
classical music or the one you espouse against those with little or no
formal training are allowed to restrict the availability of those
talents to the world (and the corrollary of poor performance as a
comparison standard.)

Just my humble opinion.

Regards,
Les H.


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Lots of SELinux denial messages.

2009-09-19 Thread Les
I have upgraded to F11 using the upgrade from the update process.  And
it went smoothly.  However, I am now getting a lot of SElinux messages
(I had to set it to permissive to get anything done at all.)  I have
submitted bugs on two of them, and will submit more bugs later.  I have
relabled the system (extensive and took time) used the restorecon
command where it was recommended, but still there are messages, and I
need to get those resolved prior to turning SELinux back on.

So I am including a few of the most predominate messages in this
message.  If you have had these and have a cure, or know some approach
that is safe to turning these off so I can re-enable SELinux, please let
me know.  If I get no responses in a day or so I will submit bugzillas
on these as well.

I should note that while the first shows a time of around 0300, my
system was idle at that time.  I went to bed at about 2:30 and rebooted
at that time.  Also I emptied the que of alerts when I logged on, so
these showed up today since about 9:30.  There were four more of these
all targeting different objects.

Regards, 
Les H




Summary:

SELinux is preventing dbus-daemon (system_dbusd_t) search
unconfined_t.

Detailed Description:

[SELinux is in permissive mode, the operation would have been denied but
was
permitted due to permissive mode.]

SELinux denied access requested by dbus-daemon. It is not expected that
this
access is required by dbus-daemon and this access may signal an
intrusion
attempt. It is also possible that the specific version or configuration
of the
application is causing it to require additional access.

Allowing Access:

You can generate a local policy module to allow this access - see FAQ
(http://fedora.redhat.com/docs/selinux-faq-fc5/#id2961385) Or you can
disable
SELinux protection altogether. Disabling SELinux protection is not
recommended.
Please file a bug report
(http://bugzilla.redhat.com/bugzilla/enter_bug.cgi)
against this package.

Additional Information:

Source Context
system_u:system_r:system_dbusd_t:s0-s0:c0.c1023
Target Context
unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1
  023
Target Objects9374 [ dir ]
Sourcedbus-daemon
Source Path   /bin/dbus-daemon
Port  Unknown
Host  localhost.localdomain
Source RPM Packages   dbus-1.2.12-2.fc11
Target RPM Packages   
Policy RPMselinux-policy-3.6.12-82.fc11
Selinux Enabled   True
Policy Type   targeted
MLS Enabled   True
Enforcing ModePermissive
Plugin Name   catchall
Host Name localhost.localdomain
Platform  Linux localhost.localdomain
2.6.30.5-43.fc11.i586
  #1 SMP Thu Aug 27 21:18:54 EDT 2009 i686
i686
Alert Count   2
First SeenSat 19 Sep 2009 11:03:18 AM PDT
Last Seen Sat 19 Sep 2009 11:03:18 AM PDT
Local ID  136137e2-5f20-4d7d-88e5-a65c26b266a6
Line Numbers  

Raw Audit Messages

node=localhost.localdomain type=AVC msg=audit(1253383398.33:262): avc:
denied  { search } for  pid=1472 comm=dbus-daemon name=9374 dev=proc
ino=42807 scontext=system_u:system_r:system_dbusd_t:s0-s0:c0.c1023
tcontext=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023
tclass=dir

node=localhost.localdomain type=AVC msg=audit(1253383398.33:262): avc:
denied  { read } for  pid=1472 comm=dbus-daemon name=cmdline
dev=proc ino=42818
scontext=system_u:system_r:system_dbusd_t:s0-s0:c0.c1023
tcontext=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023
tclass=file

node=localhost.localdomain type=SYSCALL msg=audit(1253383398.33:262):
arch=4003 syscall=5 success=yes exit=41 a0=2bd1290 a1=0 a2=249e
a3=bfca767c items=0 ppid=1 pid=1472 auid=4294967295 uid=81 gid=81
euid=81 suid=81 fsuid=81 egid=81 sgid=81 fsgid=81 tty=(none)
ses=4294967295 comm=dbus-daemon exe=/bin/dbus-daemon
subj=system_u:system_r:system_dbusd_t:s0-s0:c0.c1023 key=(null)



Summary:

SELinux is preventing dbus-daemon (system_dbusd_t) search
unconfined_t.

Detailed Description:

[SELinux is in permissive mode, the operation would have been denied but
was
permitted due to permissive mode.]

SELinux denied access requested by dbus-daemon. It is not expected that
this
access is required by dbus-daemon and this access may signal an
intrusion
attempt. It is also possible that the specific version or configuration
of the
application is causing it to require additional access.

Allowing Access:

You can generate a local policy module to allow this access - see FAQ
(http://fedora.redhat.com/docs/selinux-faq-fc5/#id2961385) Or you can
disable
SELinux

flash cookies

2009-09-08 Thread Les
Have all of you seen this:

http://blogs.techrepublic.com.com/security/?p=2299tag=nl.e036

It appears that Adobe flash can generate its own form of cookie and even
respawn HTTP cookies after your browser closes.

I don't know yet if this affects our Fedora machines, but what a sneaky
piece of crap.

Regards,
Les H

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Re: For hardware engineer types re: sound controlers and/or codec chips ??

2009-09-06 Thread Les
 explanation).

So logically the Main processor will set up a process on the system
that will send and receive encoded digital streams and tell the audio
circuitry what is coming, how it is coded, how large the blocks are and
so forth for sound output, whose size and transfer method depend upon
the current expected standard and the chipset in use.  The audio
circuitry will process the digital input to sound output for speakers
etc.  

The corresponding operation for audio in will setup the processor on the
audio board for the signals to process, the method to use and size of
the data blocks to transfer. The audio input from the microphones or
other analog inputs are then sampled into digital data appropriately
encoded to pass back to the computer where a waiting process will
dispose of the data in the appropriate manner for the application.

I hope that helps.

Regards,
Les H

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Re: Question on shredding a terebyte drive

2009-09-03 Thread Les
Earlier on in one of the threads, someone compared encryption with an
envelope.  That is pretty good.  You know the information is in there,
but the only way to get it is to open the envelope.  The question is how
long does it take to open the envelope.  No encryption is unbreakable.
The value of encryption is how long does it take to break it.  One
benchmark that is often quoted is a bruteforce attempt.  Although it
is not literally a every combination of input attempt, it is quite
similar.  If a single very high speed computer were used, and the
algorithm was known or could be guessed, how long would it take to
retrieve the message?  This is those long years you see published.  
The purpose of encryption is simply to make the data harder to retrieve,
not conceal it indefinitely.  Some algorithms are meant to conceal just
until the message is delivered, some to conceal for days, and some for
years, none shield for centuries, but attempts are being made daily.

Moreover as encryption algorithms become better understood, the
applicable means to break encoding become more numerous, and the power
of the computer (about 100Billion times more powerful today than in
1967) make encryption less and less secure at all levels.  Of course
computer speed also lends more encryption methods to the person
shielding information as well, but that is basically an efficiency
algorithm, not applicable to the direct computation of breaking any
particular code.

Alternate languages are the best bet.  It is impossible to replicate
the cultural differences on a computer (at least that is true today I
think), so languages have distinct attributes that lend them to
expressing ideas in a different cultural idiom, and until the language
and/or culture are known, it is unfathomable, unless you find a decoded
bit that you understand (the rosetta stone for example).  Navajo code
talkers were used by the US military for that same reason in the Second
World War.

If you are a number or math nut, encryption, prime numbers, fibbonacci
numbers, and transforms of all varieties will be a really interesting
topic of study.  

Your signature says that you are a professor of political science.
Think about the political and cultural evolution of language, and then
think of encryption as a means to code the thoughts of one culture to
make it unique.  What forces act on that to keep it quiet, and what
forces work to weaken the culture. That is a form of code breaking.

Regards,
Les H


On Wed, 2009-09-02 at 21:34 -0500, Paul Johnson wrote:
 On Wed, Sep 2, 2009 at 3:32 PM, Dean S. Messingde...@sharplabs.com wrote:
  I have a terebyte sata drive that I need to securely wipe clean.  It
  originally had 2 partitions.  I deleted them using `fdisk', rebooted,
  and then as root ran
 
 shred -vz /dev/sdd
 
  The drive is capable of about 60MB/sec, but shred is only shredding
  about 25MB every 5 seconds according to its output.  Since the default
  number of passes is 25, this works out to about 5 days.
 
 
 I have been reading this thread wondering this: why do we have to
 shred the whole disk, why not just find the parts that are actually
 used and write over them a few times.  I seriously doubt you have 1
 terrabyte of precious data.
 
 Another idea just hit me.  What if you encrypt the data on the disk.
 Ubuntu has that thing now to create a Private encrypted partition.  Do
 that, move your precious stuff in there.  then unmount.   That is
 supposed to be just about impossible to recover, even for the NSA
 kids.
 
 Anybody know if it is easier to crack an ecrypted file system than
 recover shredded data?
 
 pj
 
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Re: plotting large datasets

2009-08-22 Thread Les
On Fri, 2009-08-21 at 20:21 -0400, DJ Delorie wrote:
 NiftyFedora Mitch niftyfed...@niftyegg.com writes:
  32 channels is a LOT.
 
 Hence the problem :-)
 
  Could you, an artist or a draftsman do it by hand?
  Do you need all 32 channels on one page?
i.e. can you plot 4, 8, 16 to a page and just print more pages.
 
 Ideally, I'd have a GUI where I can select which channels to view, or
 show them all as a background color and select which ones to
 color/highlight.  I don't need to see them *all* at the same time (at
 least, not in a way that each channel is uniquely identifiable) but
 the ones I do see should be together (same scale and axes).
 
 Now, if gnuplot had options for dashed or dotted lines, I might have
 squeaked by with it...
 
I have used the charting capability of Calc (the spreadsheet) to plot
data before, and that will handle quite a few lines at a time. Each data
can be added or deleted easily from the range selection by simply typing
in the range to view.  Not quite like having a button that shows it, but
perhaps you could write a macro to implement that capability?

I have viewed 10 columns with over 3 samples each with this tool.

I don't know about 32 columns, but it would probably handle that as
well.  Your biggest issue is how to set them up.  The chart tool in calc
will let you display them in various formats, and colors.

Regards,
Les H


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Re: Testing upload/download bandwidth speeds for verification

2009-08-14 Thread Les
It should also be noted that there is latency related to physical
transmission speeds, so if the upload or download does checksums and
verify handshaking, then there will be a delay of the roundtrip at the
speed of light.  Now this seems very fast to most folks, but
electronically it is measurable, and on lines of several miles in
length, it amounts to microseconds per block.  If the block size is say
4K, and you download 4M, that is 1000 blocks.  If the delay is 1usec,
the total delay added is 1ms, or nearly 5000 bytes decrease at 5Mhz.
Also there is additional overhead on normal transmissions that may not
be in place on the speed test, and the speed test probably relates the
bits/sec, which is not the same as the number of usable bytes, since the
TCP uses quite a few bytes per block to specify various things about the
transfer.  All of this slows the response for actual file transfer, in
addition to loading of the sending computer.

On the speed tests, check both local responders and remote.  I am in
California, I regularly use Irvine and a system in New York.  there is
quite a difference.

Regards,
Les H

On Fri, 2009-08-14 at 23:41 +0800, Ed Greshko wrote:
 Daniel B. Thurman wrote:
 
  I have been testing my residential ISP/DSL-Landline
  connections and wanted to make sure that I was getting
  what I am paying for. Supposedly, one can use the various
  website based speed test tools to determine their upload
  and download speeds.
 
  Are these speed test tools credible and can they
  be trusted?
 
  Of the several sites I have tried, they all more or less
  seemed to be in close agreement with one another in
  terms of the bandwidth speeds, i.e. my connection
  speed is quoted at 768KB/s up and 3MB/s down,
  and the farther away from central, the more reduced
  is the speeds are.
 
  The average speed tools says that I have measured
  speeds of 720-30 KB/s up and 2.0-5MB/s down.
 
  Why is it however, that when downloading software
  from the various Linux/M$ and other downloads sites
  I am seeing on average, speeds of 200-320(max) KB/s
  and never see anything much faster than that?
 
  Is this normal?
 Yes, very normal
 
 First, the download speed get from any site can only be as high as their
 upload speed.
 
 Second, run the web based speed checks from 2 or 3 different sites 
 simultaneously and/or the same site multiple times simultaneously and
 see what the results are then. 
 
 Those two things should shed some light as to why it is normal.
 
 Oh, and third, the software download sites probably also have rate
 limits on each upload (from their point of view) so that everyone gets
 the same level of service.
 
 All of these reasons are the driving force behind the development of
 bittorrent...
 
  Has anyone gotten download speeds any faster that
  what I have reported?
 
  What I am trying to determine is if my ISP only shows
  un-throttled speeds between me  them, but then somehow
  throttles my bandwidth usage when I am using the Internet,
  or is it more probable that download speeds are being throttled
  from the download site itself?
 
  Other than by using `speed testers', I have yet to find a download
  site that pushes out more than 2-300KB/s?
 
  I have tried HTTP, FTP  Bittorent and there is very little or no
  speed improvements as far as I can tell.
 
  Just wondering,
  Dan
 
 
 
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Failed dependency check on update

2009-08-06 Thread Les
Hi, everyone,
I just got a failed dependency check:

em8300-kmod-common = 0.17.3 is needed by package
kmod-em8300-2.6.27.29-170.2.78.fc10.i686-0.17.3-1.fc10.2.i686
(rpmfusion-free-updates) : Success - empty transaction

So I am guessing that the kmod stuff is in flux right now.  I seem to
remember seeing somewhere that it was changing.  Is there a plan going
forward that someone might let us all know?

Regards,
Les H

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Re: OFF-TOPIC: Algol 60 guru required

2009-08-04 Thread Les
On Mon, 2009-08-03 at 19:42 -0400, Kevin J. Cummings wrote:
 On 08/03/2009 05:58 PM, Hiisi wrote:
  Dear All!
  Sorry for this off-topic, but I could not see any solution to my
  problem. I'm trying to transform old Algol 60 program to C++. I can
  understand every syntax of it except this construction:
  D(N+1):=N(N+2):=0.0;
  
  Variables types:
  N - INTEGER
  D - REAL ARRAY
  What is it? How to represent in C++? Hope on this list there's people,
  who could remember that from the time...
  Thanks in advance!
 
 Classic ALGOL-60 requires that a subscript-list be enclosed in square
 brackets.  I would expect your statement should read:
 
 D[N+1]:=N[N+2]:=0.0;
 
 But this doesn't answer the question of N.  Is it an INTEGER scalar?
 INTEGER array?  INTEGER procedure?  Its the N(N+2) part that bothers me.
 
 The actual definitions of D and N would help here.
 
 An assignment statement is defined as:
 
 left-part-listexpression
 
 and a left-part-list is one or more
 
 variable :=
 
 where each variable in the left-part-list receives the value of the
 expression.
 
 BTW, I'm just curious how you're handling the pass by name stuff
 
  -- 
  Hiisi.
  Registered Linux User #487982. Be counted at: http://counter.li.org/
  
 
 
 -- 
 Kevin J. Cummings
 kjch...@rcn.com
 cummi...@kjchome.homeip.net
 cummi...@kjc386.framingham.ma.us
 Registered Linux User #1232 (http://counter.li.org)
 

I don't know if many folks these days are familiar with the pass by
name operation.  Such code these days is generally not implemented due
to the MANY serious issues with security, and most languages don't have
any implementation for it (other than some runtime object language
approximations using overloading to approximate it), and some list
processing languages like Clisp.  

Anyway for the uninitiated, here is a fair explanation of how it works:

http://www.cs.sfu.ca/~cameron/Teaching/383/PassByName.html

I was going to write a C example, but I am just too rusty in Algol to
be sure I coded it correctly.  However, the Thunk method as shown using
PASCAL is one method of implementing pass by value.

Regards,
Les H


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Re: cli guru needed

2009-08-03 Thread Les
On Sun, 2009-08-02 at 20:03 -0430, Patrick O'Callaghan wrote:
 On Sun, 2009-08-02 at 17:19 -0700, Les wrote:
  On Sun, 2009-08-02 at 14:38 -0400, Robert P. J. Day wrote:
   On Sun, 2 Aug 2009, Patrick O'Callaghan wrote:
   
On Sun, 2009-08-02 at 12:54 -0500, Mikkel L. Ellertson wrote:
 Bazooka Joe wrote:
  Is there a way to combine these 2 commands to cut my time in half?
 
  VBoxManage internalcommands  converttoraw file.vdi file.raw
  then I have to run
  dd if=file.raw of=/dev/sdb
 
  -thx
 
 You can can command on the same command in several ways. It depends
 on what you put between the command.

 ; - always run the next command.
  - run the second command only if the first command is successful.
 || - run the second command if the first one fails.
   
How is this going to reduce his total time? The commands are still
running sequentially.
   
 i'd bump up the blocksize of that dd command.  IIRC, the default
   blocksize for dd is 512 bytes -- painfully small and resulting in lots
   and lots of little writes.  crank up the blocksize significantly and
   that second command should speed up noticeably.
   
   rday
  if the vbox command can follow fully qualified paths, you should be able
  to simply say converttoraw file.vdi /pathtosda/file.raw
  
  However, going between disks may be faster or slower, depending on the
  way the command buffers the data, and/or handles disk I/O.  Personally I
  think some fundamental experimentation is in order.  There is a final
  issue in that some video files are protected in such a way that copying
  them is prohibited.  I don't know or care about the details as I never
  do anything with video.  However be aware that some driver software
  includes checks for pirating video and audio.  If your driver is setup
  to prohibit copying according to the DMCA, it will not work as expected.
 
 AFAIK the OP is trying to convert a VB virtual disk to a raw format.
 Perhaps you misread vdi for dvi. I'm not sure it's even possible to do
 what he's asking, but it has nothing to do with video.
 
 poc
 
Sorry, and you are correct, I did read vdi for dvi.

Regards,
Les H

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Re: cli guru needed

2009-08-02 Thread Les
On Sun, 2009-08-02 at 14:38 -0400, Robert P. J. Day wrote:
 On Sun, 2 Aug 2009, Patrick O'Callaghan wrote:
 
  On Sun, 2009-08-02 at 12:54 -0500, Mikkel L. Ellertson wrote:
   Bazooka Joe wrote:
Is there a way to combine these 2 commands to cut my time in half?
   
VBoxManage internalcommands  converttoraw file.vdi file.raw
then I have to run
dd if=file.raw of=/dev/sdb
   
-thx
   
   You can can command on the same command in several ways. It depends
   on what you put between the command.
  
   ; - always run the next command.
- run the second command only if the first command is successful.
   || - run the second command if the first one fails.
 
  How is this going to reduce his total time? The commands are still
  running sequentially.
 
   i'd bump up the blocksize of that dd command.  IIRC, the default
 blocksize for dd is 512 bytes -- painfully small and resulting in lots
 and lots of little writes.  crank up the blocksize significantly and
 that second command should speed up noticeably.
 
 rday
if the vbox command can follow fully qualified paths, you should be able
to simply say converttoraw file.vdi /pathtosda/file.raw

However, going between disks may be faster or slower, depending on the
way the command buffers the data, and/or handles disk I/O.  Personally I
think some fundamental experimentation is in order.  There is a final
issue in that some video files are protected in such a way that copying
them is prohibited.  I don't know or care about the details as I never
do anything with video.  However be aware that some driver software
includes checks for pirating video and audio.  If your driver is setup
to prohibit copying according to the DMCA, it will not work as expected.

dd may manage to copy the raw data, but again there may be information
encoded that will prevent the copy from playing.

Regards,
Les H


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Re: preupgrade fails F10 - F11

2009-07-17 Thread Les
On Fri, 2009-07-17 at 17:58 +0200, Janez Košmrlj wrote:
 Janez Košmrlj wrote:
  It downloads everything correctly, but after the reboot and start of 
  the install process I get the message:
  /usr/tmp is not a symlink
 
  I checked this and on the hard drive /usr/tmp is a symlink to /var/tmp.
 
  I tried a couple of times, but I get the same error every time.
 
  Has anyone an idea how to fix this.
 
 
 anyone
 
I cannot help you too much, but the link matches what I see.

It may be that the website is checking your system to see if it is
windows.  Ubunto has some capabilities to overcome this dumb check, but
Fedora doesn't.  You have to add a package to your browser.  Currently I
use greasemonkey and default user agent.  Between the two of them I get
access to most sites.  What is needed is an ethics rule preventing web
programs from checking which system is installed.  It shouldn't matter,
if the web browsers are standards compliant and the programs are too.
The web should be OS independent.

Regards,
Les H

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Re: mailing list pgp signatures...

2009-07-12 Thread Les
On Sat, 2009-07-11 at 18:38 -0400, Steven W. Orr wrote:
 -BEGIN PGP SIGNED MESSAGE-
 Hash: SHA1
 
 On 07/11/09 18:05, quoth David:
\
 If I may, I'd like to amplify on G's lack of Netiquette. I am also using
 Thunderbird with the Enigmail plugin. I too have my system set up for
 Automatically Decrypt/Verify and was previously forced to have long delays
 every time I saw a message from him. AND I too have taken pains to have him
 filtered out of my sight.
 
 I am new to the use of PGP but I have studied it from the math, to the
 computer interface, to the historical and to the sociological aspects. We send
 mail via post office all the time and we sign them and seal our messages in an
 envelope. PGP is the same thing.  I can send mail and set the From line to
 Barack Obama and it's trivial to do so. Or, I can send mail out as you and
 most people wouldn't be able to tell. We all know about how big a problem
 identity theft is and yet so few of us sign our mail. That absolutely
 fascinates me. So while G is acting like a nitwit by not even understanding
 how his behavior is fundamentally rude, I'd like to take this opportunity to
 encourage more of you to start signing your mail. There are basically two ways
 to do it. You can either use the PGP(or GnuPG) scheme, or you can use S/MIME.
 S/MIME is better for scalability in corporations. PGP is better in public. PGP
 is free and for SMIME to properly work, you have to get a cert from some
 trusted Cert Authority (CA). For most people, that would mean Verisign, and
 for others it would mean certs that shouldn't be trusted in the first place.
 
 Anyways, I said what I wanted to say and you can all do what you want, but
 maybe at least a few more will be better informed, and that's really why we're
 all here.
 
 This message is signed, but if you read it, you'll at least be able to fetch
 my public key.
 
Hi, Steven,
The point about the envelope is a good one.  It is a point I never
considered.  But g's attitude doesn't make me fond of signing, in fact
it does more to discourage users of messaging services to not use PGP or
SMIME to sign messages.  His actions slow access, disturb the flow of
work and as you pointed out is generally rude to the users of the list.
As to someone signing messages to look like him I don't see how that
could happen, because the messages would have to be signed using his
private key, unless he posted the private key as well.

In any event, even your signature shows up as Valid signature, but
cannot verify sender on my evolution.  I have checked before to see
what servers are searched and it appeared correct, but since it cannot
verify sender, what does that really tell me?  If the email were
business related I would be suspicious the first few times, then forget
about it as regards your emails, but wouldn't that weaken the process?

In short, the problem I see with signatures right now, is the process
is not well documented, and has more players than should be necessary.
I don't know the solution, but the problems are somewhat self evident.
If I cannot decipher some sigs, and cannot verify others, then what
value is the process, and why would I add that overhead if it doesn't
bring some real benefit.  I am not trolling here, just stating the case
as I see it.  

One might make it more robust and not pass on unregistered emails, nor
those that do not pass verification (whatever that may end up being).

But that would be the end of spammers as they would have to register,
and be verified.  There are too many interests with cash in hand to make
that realistic.  Any thoughts?

Regards,
Les H


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Re: problem with my laptop

2009-06-01 Thread Les
On Sat, 2009-05-30 at 13:10 -0400, Nebur Álvarez B. wrote:
 hi!, before, my english is not very well, i'm sorry.
 
 i have a problem with my laptop (sony vaio vgn-nr330fe), when I
 execute many process, fails gnome and kde, and them does nothing when
 i try do click in anywhere place. I try find the error, but, I nothing
 found
 
 I am mindful of your comments
 
 best regards
I saw that several people replied with some information.  Did you check
the log files?  When the system next comes up, check the system logs to
see what information they provide.

Look at
ApplicationsSystem ToolsSystem Log

It may provide some useful information.

Regards,
Les H

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Re: WSJ - Article on Linux netbooks

2009-05-29 Thread Les
On Fri, 2009-05-29 at 17:12 +0200, Kevin Kofler wrote:
 Konstantin Svist wrote:
  Is there a driver wrapper for printers out there (similar to
  ndiswrapper)? If not, there should be :P
 
 No, there shouldn't! We'll never get native, Free drivers that way. I don't
 want to have to use crappy buggy proprietary drivers which weren't even
 written for my operating system! Ndiscrapper (misspelling intentional) is a
 problem, not a solution.
 
 Buy a supported printer! (I recommend HP models supported by HPLIP without
 the binary plugin. Most HP printers are, but check the compatibility list
 to be sure.)
 
 Kevin Kofler
 
But if one already has a system running windows and converts to Linux,
this is not a good option.  The software should run with stuff that is
already working to be a good product.  Otherwise we will just continue
to be an also ran operating system.  I use Linux on three systems now,
and one of them works well, the other two less so, one couldn't update
to F10 because of the APIC (sp?) option not working (an older IBM
system). Another won't work with my wife's cell phone media, refusing to
download her mp3 files (it just stalls, no error messages or any
indication of what is happening).
The third is still running Fedora 8 because it is just an old box I use
for physical trouble shooting on electronics.  Overall, I like Fedora,
but seriously printer and peripheral incompatibility will kill wider
adoption.  It  is about use, not ideology.  If we could wield enough
influence then product manufacturers would support Linux.  But only if
the interface is consistent in the various releases.
The ball is in our court, whether we like it or not.  And, by the way,
why not enable a simple way to interface to Windows drivers? (I'm joking
here, I know the issues.)  I suspect that Windows has severe limitations
on re-entrance, and most likely hasn't publicly documented that process,
which is one of the real issues with drivers anyway.  

Regards,
Les H

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Re: What /dev is ethernet Webcam

2009-05-28 Thread Les
On Wed, 2009-05-27 at 16:31 +0100, Sharpe, Sam J wrote:
 Jim wrote:
  On 05/26/2009 09:00 PM, Rick Stevens wrote:
  grammar. ;-)
  Sorry about my grammar , but i never got past the Third Grade,
  my family was poor and I had to take up Bank Robbery, it pays better 
  than having a College Ed-U-Ma-cation.
 
 Yes, but does Bank Robbery have a better 401K plan?
 
 --
 Sam
Be careful,  Now that the government is in the banking business, you
know how the politicians hate competition.

Les H

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Re: [OT] electronic books. was; Re: Blinking lights of death ? Netgear Switch GS108

2009-05-01 Thread Les
On Fri, 2009-05-01 at 14:03 +, g wrote:
 max wrote:
 
  What's a good electronics book? I'm looking for a beginner to intermediate
  skill level type book.
 
 a good question.
 
 i can only answer with, i started reading electronic books in library at
 around age of 9. i started working part time in a radio/tv repair shop at
 13. correspondence course with rca at 14, electronics in usaf at 20.
 
 semiconductor manuals at 23, logic manuals at 28, oem cpu tech manuals at
 34, and now reading on line at age 68 and still learning, it is difficult
 to say what i might consider 'beginner to intermediate'.
 
 best answer to give you is just go to local library and look up titles
 and start reading.
 
 today, there are so many 'beginner' books, it is not an easy question to
 answer. if you are in school and they have any course in electronics, ask
 what they use. or check with local college to see what they use.
 
 regardless of what you find, there is nothing wrong with finding several
 books and read them, because the more you read, the wider the range will
 be in your learning.
 
 i wish i could give you a more definitive answer, as it has been too
 long from when i started and i am still learning.
 
 if you have any further questioning along this subject, please contact me
 off list and i will reply. to continue such in this thread or thru this
 list, is not in keeping with etiquette policy of this tech support list.
 
 thank you.
 
 -- 
G is right on all counts.  I would add that the brain is marvelous at
relating information.  If  you read enough, even with little
understanding, the common information will begin to become coherent and
you will learn.  That said, if you start with a few beginner articles,
and please do the exercises they have, you will learn.  The exercises
are important to lock the information with the potential errors that you
will encounter, and the effort needed to correct them.

Like G, I started a long time ago, from vacuum tubes, and while the
circuits have changed, the elements of design and software have not.
Almost everything I ever learned has benefited me.

Go for it!
Regards,
Les H


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Re: Editor to program in C

2009-04-29 Thread Les
On Tue, 2009-04-28 at 22:41 -0400, Gene Heskett wrote:
 On Tuesday 28 April 2009, Dave Ihnat wrote:
 On Tue, Apr 28, 2009 at 08:34:09PM +0100, Chris Jones wrote:
  Emacs is my editor of choice, and I disagree it has a learning curve.
  ...
  snip
  vi on the other hand ;)
 
 Aw, crud.  I've dealt with this stupid war for 28 years.
 
 And just to throw gas on the fire--so I'm not pacifist, sue me--I still
 think Emacs is overblown for an editor.  A comment I made about Emacs
 about '82 or so on Usenet was, If I wanted an operating system, I'd
 get one.  Emacs has everything except the kitchen sink.
 
 And someone pointed out the icon for Emacs was...well, guess.
 
 Naw, couldn't be.  Say it isn't so... :)
 
 Does vim have an icon?  I've never seen it if it does, but I don't use 
 anything else enough to remember the syntax.
 
 Another valid comment about Emacs back then:  Put your coffee cup on
 the keyboard and roll it around; it will hit keys that all do
 *something*.  (Problem was, probably nothing you wanted.)
 
 Hey, strokes for folks--the great thing about Unix/Linux was summed up
 in another quote from those long-ago days:
 
   Unix doesn't just let you shoot yourself in the foot.  It asks you
   what caliber you want.
 
 And I usually chose the 4 ga punt gun.  Its so heavy the only thing I could 
 hit is the floor cuz I could get it propped up on my foot. ;)
 
And how many others here have ever even seen a punt gun?  Was yours a
muzzle loader or a breech loader?  I shot one a long time ago.  It was
in a Jon Boat, with the pole support mounted in a hole in the front
seat.  Now that was true swampbilly technology.  A whole flock of ducks
or geese in one shot!

Kinda like emacs.

Regards,
Les H

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Re: Problems sending Emails

2009-04-29 Thread Les
On Wed, 2009-04-29 at 12:27 -0400, Jim wrote:
 Jim wrote:
  Giuseppe Fuggiano wrote:
  2009/4/29 Jim mickey...@sbcglobal.net:
   
  FC10/KDE4.2/ Thunderbird
 
  Sending Email Out to AOL.com.
  When I send a Email to a person at AOL.com I get a email , Failure 
  to Send ,
  Has anyone had problems like this ?
  They say the reason they can't send is because of a  421 Error
 
  My ISP ATT says it's because of Thunderbird, So I just hung up on them.
  
 
  Hi Jim,
  Your question is not very complete. It would be better to know _who_
  emits that error and the complete string.  What your ISP ATT is saying
  exactly about Thunderbird?  The 421 error could refer to many
  protocols...
 
  Check these parameters:
   * The SMTP server should be a valid.
   * Also the recipient.
 
  Bye

  I did verify the smtp settings with my ISP and they they are correct.
  By reading the Failure email I'm getting back, below is the part of 
  the email.
 
 
 
 
  Hi. This is the qmail-send program at yahoo.com.
  I'm afraid I wasn't able to deliver your message to the following 
  addresses.
  This is a permanent error; I've given up. Sorry it didn't work out.
 
  x...@aol.com:
  64.12.222.197 does not like recipient.
  Remote host said: 550 MAILBOX NOT FOUND
  Giving up on 64.12.222.197.
 
 I'am having only problems with emails to aol.com. I'm sbcglobal.net.
 Below is the full Failure  message below, I xxx out email addresses and 
 names
 
 
 Hi. This is the qmail-send program at yahoo.com.
 I'm afraid I wasn't able to deliver your message to the following addresses.
 This is a permanent error; I've given up. Sorry it didn't work out.
 
 xx...@aol.com:
 64.12.222.197 does not like recipient.
 Remote host said: 550 MAILBOX NOT FOUND
 Giving up on 64.12.222.197.
 
The email address was rejected.  Probably the X name.  Most spam
filters will reject email with multiple X's in the account name because
that is often spam or an attempt to hide the identity of the sender.

If both are yours, and their spam filter was not the reject cause, you
may discover that the registry had not yet fully propagated over their
network of servers, and so a few minutes or days later it might work.

Regards,
Les H


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Re: who can introduce me some good redhat linux book and download links

2009-04-20 Thread Les
On Sun, 2009-04-19 at 12:01 -0600, Frank Cox wrote:
 On Mon, 20 Apr 2009 00:57:39 +0800
 Nathan Huang wrote:
 
  I am new fan in fedora redhat linux, I am intereted in linux and network 
  administration, who can introduce me some execellent ebook, so that I 
  can learn linux systematically.
 
 If you have a specific question this list is an excellent resource for getting
 information of all kinds, but you have to ask a good question to get a good
 answer.
 
 There are many good sites and tutorials on the net that you can find by typing
 your question or area of interest into Google.
 
 Since your interest is in network administration, I recommend this site which
 was (and is) an invaluable resource when setting up a network, mail server and
 so on:
 
 http://www.linuxhomenetworking.com/
 
 However, if you don't know much about Linux in general, you may want to go
 through some of the many sites that I see when I type linux for beginners
 into the Google search box.
 
 -- 
 MELVILLE THEATRE ~ Melville Sask ~ http://www.melvilletheatre.com
 
Hi, Frank,
You are both right and not right.  There are a LOT of bits of
information on the web.  However, not all are well written or well
supportive to the newbie.  Some are even very out of date, which in some
cases means wrong about how things work now.

When a newbie asks this question they are looking for guidance on the
best available material.  I know that this is a somewhat loaded
question, but there are several places that we all use.  I haven't
checked lately, but I know for example that Fedora had some tutorials
started, and that we have discussed this issue before, as I stated
earlier, though things change.  What was the best is now a bit long in
the tooth.  Maybe we need somewhere to collect the current best
available list of documentation and training.  Unfortunately I don't
know how to implement that, but I know that it is an issue.  With paper
books, they had copyright dates, and often the preface told which
software version they addressed, and I would often refer to those bits
to see if the data was accurate and up to date.  But many on line
documents seem to leave that out.  So how does one go about checking
what is the best sources for training and reference material?

Regards,
Les H


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Re: Wireless problem with Fedora 9 and 2Wire 1800

2009-04-18 Thread Les
On Fri, 2009-04-17 at 20:06 -0700, Erick Martínez wrote:
 Ok, I already test it, and I don't know why, but it works. Previously,
 I had installed the correct firmware for that chipset, so, I backup
 it, then create a new folder for the downloaded firmware, reboot the
 thinkpad and then it works. Now, I only have the problem that
 frequently disconnects and connects from the 2Wire 1800. Thanks again
 Kevin.
 
 Shalom
  
 Erick Martinez
 Estudiante de piano y composición.
 
 

Hi, Erick,
I had that problem some time ago with my 2Wire modem.  Turned out that
the power supply (wall wart) had died.  Replaced it and no more
problems.  Hopefully that will do the trick for you as well.  That thing
draws quite a bit of current, so check the requirements on the modem.

Regards
Les H

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Re: Chown ???

2009-04-11 Thread Les
On Sat, 2009-04-11 at 11:09 +0930, Tim wrote:
 On Fri, 2009-04-10 at 10:27 -0400, Peter Neilson wrote:
  Once knew someone who built himself a computer out of old pinball 
  machines and an Oliver typewriter.
 
 Reminds me a story we were told while we were supposed to be studying
 audio electronics:  Gutted pinball machines were discovered near a
 Russian embassy, the reason being that they contained integrated
 circuits that were on the embargo list of things not to be sold to them.
 Naturally, some wag at the back of the class couldn't resist play-acting
 how the Russians would launch their missiles, to everyone's amusement -
 miming pulling back the spring loaded rod that fires the ball off onto
 the table.
 
  I also remember when I walked to school through snow deeper than I was
  tall, and it was uphill both ways.
 
 Bah, we didn't even have snow back then...  ;-)

I used to help my Uncle run a pinball route.  But I don't remember them
having I.C.'s.  Must have been after the 60's.  The ones I worked on
then had accumulators made up of rotary solenoids, and stepper switches
(not motorized, just a solenoid pulling on a ratchet or ratchets to
advance the counters.).  The randomizer for the match number play was
simply another ratchet mechanism that would run for a set period of
time, but the steps were intermittant, yeilding a sort of psuedo random
generator.  There were some that had sequential relays to control some
of the kickers, and advance the score mechanisms.  They were really
interesting electromechanical bits of work.

Regards,
Les H

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Re: Goto [Was Re: Chown ???]

2009-04-10 Thread Les
On Fri, 2009-04-10 at 10:32 -0500, Dave Ihnat wrote:
 On Fri, Apr 10, 2009 at 11:07:00AM -0400, James Kosin wrote:
  Actually, GOTO was very heavily in BASIC programming language.  There
  was no idea of statement blocks back then.
  It may be the only language at the time where it isn't considered taboo.
 
 That's been a bone of contention for, literally now, decades.  Goto
 isn't _taboo_, as such.  It's misuse/overuse is taboo.
 
 The purpose of deprecating use of goto was to avoid the spaghetti code
 that was so prevalent, especially in C.  HOWEVER, blind adherence to
 avoidance of the use of a strategically placed goto can result in
 equally obscure code.  This is typically seen in deeply nested if
 statements; I've seen nests 10 and 15-levels deep that would have been
 far more clear if a simple error-condition goto to the end of the nest
 had been implemented.
 
 I remember a Master Chief Petty Officer in the Navy when I was a lowly
 Middie 3C.  He'd just done something that was Stricly Forbidden, and I
 asked him--very tentatively; you treat Master Chiefs with respect just
 below that of Captain, if that--if what he'd done was by the regs.
 
 Nope.  There are Rules, and they're good 'uns.  Follow them.
 
 But...you just...
 
 Rules are good.  You gotta know when to follow 'em, and when not to.
 You don't know enough yet to know when not to follow 'em, so follow
 'em.
 
 It's been good advice for these past 30 years.
 
As an retire Navy Chief, I'll second that advice.  Thanks for the great
memories and a chuckle.

Regards,
Les Howell ETC USN (Ret.)


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Re: thoughts on how to write a linux virus in 5 easy steps

2009-04-05 Thread Les
On Sat, 2009-04-04 at 18:49 -0700, Globe Trotter wrote:
 Hi,
 
 The following article has created quite some discussion, so I wanted to hear 
 what all the real experts (here) thought about it.
 
  http://www.geekzone.co.nz/foobar/6229
 
 The article raises quite a few good points. Whether they have merit, and 
 whether remedies are in-built is what I am wondering.
 
This is just about the lamest article on any form of programming that I
have ever read. 
His code is not self replicating (but it might be able to load something
that is), it requires misdirection and operator action, and is a Trojan.
In addition, he wrote it apparently to a standing challenge that
requires writing a file to /etc, which he did not do, nor did he show
even high level pseudo code for that operation.

I won't add further flames here, but come on, this is just flame bait,
and I bit... but don't expect further discussion from me.

Regards,
Les H


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Re: error message from YUM

2009-03-20 Thread Les
On Wed, 2009-03-18 at 21:23 +0100, Kevin Kofler wrote:
 Les wrote:
  If I am reading this debug message correctly, it appears that a lock
  file is in place.  But the path is not given.
 
 There are numbered files matching the pattern:
 /var/lib/rpm/__db.???
 
 These are used to access the actual RPM database and also hold its locks.
 Deleting these files allows recovering from locking issues.
 
 WARNING: Do not delete any other files in /var/lib/rpm!
 
 Kevin Kofler
 
It turned out that I had to reboot (power issues), and during that
exercise, the locks cleared, and yum is back to working again.  

But thanks for the reminder about the database files.  I should have
thought of that.

Regards,
Les H


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error message from YUM

2009-03-18 Thread Les
Hi, everyone,
I am running F10.  I attempted to review some yum groups using the
Add/Remove Software button, and the window gives me the following error:

Error Type: type 'exceptions.TypeError'
Error Value: rpmdb open failed
  File : /usr/share/PackageKit/helpers/yum/yumBackend.py, line 2314, in
module
main()
  File : /usr/share/PackageKit/helpers/yum/yumBackend.py, line 2310, in
main
backend = PackageKitYumBackend('', lock=True)
  File : /usr/share/PackageKit/helpers/yum/yumBackend.py, line 182, in
__init__
self.yumbase = PackageKitYumBase(self)
  File : /usr/share/PackageKit/helpers/yum/yumBackend.py, line 2253, in
__init__
self.repos.confirm_func = self._repo_gpg_confirm
  File : /usr/lib/python2.5/site-packages/yum/__init__.py, line 589, in
lambda
repos = property(fget=lambda self: self._getRepos(),
  File : /usr/lib/python2.5/site-packages/yum/__init__.py, line 395, in
_getRepos
self._getConfig() # touch the config class first
  File : /usr/lib/python2.5/site-packages/yum/__init__.py, line 192, in
_getConfig
self._conf = config.readMainConfig(startupconf)
  File : /usr/lib/python2.5/site-packages/yum/config.py, line 774, in
readMainConfig
yumvars['releasever'] = _getsysver(startupconf.installroot,
startupconf.distroverpkg)
  File : /usr/lib/python2.5/site-packages/yum/config.py, line 844, in
_getsysver
idx = ts.dbMatch('provides', distroverpkg)


If I am reading this debug message correctly, it appears that a lock
file is in place.  But the path is not given.

If I use a terminal and do yum commands directly (I tried several, but
didn't keep a log) they seem to work correctly.  So this appears to be
some lock that is generated by the Add/Remove Software utility, and not
yum itself.

Any clues?  Looking up the yum help on line didn't provide any
illumination (as I expected, since this appears to be the window, and
not the utility).

Regards,
Les H

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Re: How to build a linux based cheap (handheld ) computer

2009-03-13 Thread Les
On Fri, 2009-03-13 at 12:32 +0100, Kevin Kofler wrote:
 Deboo ^ wrote:
  Can someone provide some links to build cheap / inexpensive computer
  (even with limited memory and no storage) which can run linux off a
  usb stick and can be used for basic operations.
 
 Isn't that basically what all these netbooks are?
 
 Kevin Kofler
 
Another option is a rebuilt system from one of the major distributors.
I have purchased several from Microcenter (http://microcenter.com).
They usually run from $150 US to just under $1000 U.S.

And of course there is the possibility of finding some company that is
going under and seeing what they might have for sale.

There are also some distributors of older SUN computers that are
reasonably priced.

Just look around.  My son in law found one that had been sat outside for
trash which he recycled (it had a bad memory board).

Regards,
Les H


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Re: OT: wifi antennas

2009-01-28 Thread Les
On Wed, 2009-01-28 at 21:14 +, Paul Smith wrote:
 On Wed, Jan 28, 2009 at 12:18 PM, Anne Wilson an...@kde.org wrote:
   Could someone please advise me regarding USB antennas to improve the
   reception wifi Internet signal?
  
   A wifi antenna doesn't normally connect via USB, but via a screw-on
   coaxial connector (a smaller version of what you find on cable TV
   boxes).
  
   Hawking makes a number of different external antennas which seem
   to work fairly nicely.  Make sure you get one compatible with your
   wifi setup (e.g. 802.11A and 802.11B/G use different frequencies).
  
   Also, I believe that some really only work with matching hardware.  I
   added an Edimax antenna to my router, and it actually gave slightly less
   signal than the router's own antenna.
 
  Most of the add-ons are highly directional (mine are, but I want them
  that way).  That may also play a part.
 
  I did know that, but no matter what I did, I couldn't get a good result.  I
  think it was a mis-match, somewhere along the line.  I have a couple of 
  Edimax
  PCI cards.  Maybe when I have time to play I'll experiment and see if they 
  get
  a better result.
 
 I would like to thank all respondents for your help.
 
 Paul
 
Antenna's are more complex than they appear.  Think of how a bell
sounds.  If you change the shape of the bell a bit, its sound changes,
and the area over which it can be heard also changes.  Antenna's are
like that.  Moreover a bell has one dominant mode or tone.  Antenna's do
that too.  But WiFi is not antenna friendly.  It is comprised of many
tones, spread over a wide range, kind of like a piano keyboard.  So the
antenna needt to match that frequency, and work for all the associated
tones.  In addition there are requirements for the area over which it
can be heard.  RF engineers call that the radiation pattern.  Some
antenna's radiate in a donut pattern.  This is the basic type of
antenna, called a dipole.  BUT the radiation that is above and below the
desired places where receivers might be is wasted, so good WiFi antennas
are designed to squish the donut, and that squishing causes more
radiation in the desired areas and less radiation in undesired areas,
which the antenna manufacturers call gain.  In other words the signal
travels farther in the desired direction.  So for a good wifi device
antenna, the radiation pattern should be flat (gain of 3-5 db), and the
graphic of the radiation should be a sort of wheel laying on its side.

To make this work, the antenna needs to match the transmitter for
efficient power transfer, and it needs to be mounted away from
interfering objects at least 3 wavelengths (about 1yard or 1meter from
walls or objects as tall or taller than the antenna).

Hope this gives you some background and some idea of how to get the best
from your antenna purchase.

Regards,
Les H

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Re: Ideal Swap Partition Size

2009-01-24 Thread Les
, the local cache memory is also re-done to match
the new block, which may or may not generate additional local cache (the
cache in the processor memory) misses, requiring more memory be moved
from local RAM into the cache ram.  To keep the processor working at max
efficiency, most MMU's and processor systems can do a bit of look ahead
and hopefully get the memory stuff done before it is actually needed.

Most systems today implement these memory moves by DMA (direct memory
access) which means they occur during the non-memory access cycles of
the processor.  For example, a jump instruction without look ahead takes
about 11 processor cycles (depending on the architecture).  One cycle
reads the instruction, and one to four more read the address (depends on
the exact form of jump and associated actions) and 2 or 3 cycles to
decode the instruction, then one to two cycles to change the instruction
pointer to the destination.  Since the cycles to decode the instruction
and the cycles to set the instruction pointer do not require memory
access, a DMA process can use those cycles to perform the cache and swap
operations, often simultaneously (by managing the addressing
appropriately) and without interrupting the flow of the processor making
the whole thing virtually seamless.  However as the processors have
become pipelined, and the memory access more cycle intensive, DMA is not
as efficient as it was once.  Fortunately the changes in memory
architecture have had some effect on that as well (DDR means Double
cycle, and because it is double cycle) the read lines are different from
the write lines, so some simultaneous read and write operations are
possible if the MMU and board addressing and so forth are designed to
support it.  This also requires some fancy footwork on the RAM boards,
and/or the ram chips themselves.

I hope this is fairly clear and mostly correct.  Please feel free to
adjust my input if not.

The only thing constant in high tech is the rate of change.

Regards,
Les H

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Re: RAM question for everyone!

2009-01-23 Thread Les
On Fri, 2009-01-23 at 11:07 -0500, Mark Haney wrote:
 Bryn M. Reeves wrote:
  Mark Haney wrote:
  Dan Track wrote:
  I was recently asked a question about how much RAM should there be
  within a server given that the APP uses 8GB of Memory, should I buy
  10Gig of memory and have a small harddrive and no swap space? Would
  this configuration allow everything in my OS to run from RAM and not
  from swap? If this is the case then there's no need to ever create
  swap, is there?!?
 
  Your thoughts are appreciated.
 
  Thanks
  Dan
 
 
  With RAM, the more the merrier.  I guess the question is, what does this
  
  Unless you're on a 32-bit system in which case more RAM can make you
  much less merrier since the mere addition of the memory causes more
  pressure on the already constrained lowmem available on these platforms.
  
  Regards,
  Bryn.
  
 
 True, but the assumption was 64-bit since he says the app uses 8GB RAM.
 
I guess I do not comprehend the issue of more memory stressing low
memory?

I know that a 32 bit system is constrained in addressing to something
like 4G, due to the intel addressing architecture, and 32 bit
constraint, so applications were developed to go beyond that.  But given
that the system maps the logical memory to physical memory, and some can
do this via hardware, how does adding more memory add more stress?  If
the system is running the application now, the basic change is reducing
swapping to disk, is it not?

Regards,
Les H

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Re: Evolution broken

2009-01-20 Thread Les
On Tue, 2009-01-20 at 10:45 +, Noel James Bridge wrote:
 Without any apparent reason, Evolution has suddenly become unable to 
 send or receive messages. I set up Thunderbird instead and that works 
 fine. However, it downloaded about 3500 messages that should have been 
 deleted, so it looks as though there has been a problem for some time. 
 Webmail shows that the messages have now been deleted but Evolution 
 still has the Send/Receive button greyed out.
 
 Anyone else had similar problems?
 
I thought mine was broken once, but I had mistakenly left a filter in
place.  Check the upper right corner of evolution to make sure the
filter box is empty.

Regards,
Les H

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Re: KVM Switch Suggestions -- Are The Ebay Cheapies Okay?

2009-01-16 Thread Les
On Thu, 2009-01-15 at 21:53 -0500, jack wallen wrote:
 Robert L Cochran wrote:
  Are the no-name-brand, two-port, USB 2.0 PS2 KVM switch boxes with two
  cables which sell for $14.99 and free shipping on EBay any good? Here is
  an example: item 140294824343 from seller insidecomputer. Recent
  discussions (from 2007) suggest IOGear and Trendnet switches as good
  brands. If I can get a cheap switch that works, though, I'm willing to
  do it.
 
  Thanks
 
  Bob Cochran
  Greenbelt, Maryland, USA
 

 avoid them. i bought one on ebay - a cheap USB one. it did two things:
 prevented Fedora from being able to read the modes from the monitor so I 
 couldn't get proper resolution and, even worse, killed every usb port on 
 my system. i now have to get a PCI usb card in order to use any USB device.
 
 so, yeah, i wouldn't bother.
 
If all the USB ports are dead, then the power supply for those ports (5v
@1A/port) has probably blown a fuse or component.  You may be able to
get it fixed.

Regards,
Les H

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Re: how to get username use another home directory

2009-01-16 Thread Les
On Fri, 2009-01-16 at 12:54 -0500, Todd Zullinger wrote:
 Globe Trotter wrote:
  I usually keep the userspace in another partition, /usr/local (let
  us say /usr/local/trotter.
 
 I'm curious, why not just have /home be on a different partition?
 That seems more elegant to me (and would work better with SELinux as
 well, though you might not care if you disable SELinux or run in
 permissive mode :).
 
  Previously, I would add skip the create user step and log in as root
  and then create user with directory using system-config-users.
  However, this is apparently no longer allowed, and I am required to
  create an user. How do I get this user to have its home in
  /usr/local/trotter? I guess one way out is to create a fake user and
  then go in, use system-config-users and then delete the fake user.
  Is there a more elegant way?
 
 This is the sort of task I'd do from a text console (but then, I say
 that sort of thing a lot ;).  If you create the user trotter at first
 boot, use CTRL-ALT-F2 at the login screen to get to a console.  Then
 login as root and use something like:
 
 # usermod -m --home /usr/local/trotter trotter
 
 The -m option moves the current home dir to the new dir.  Obviously,
 you don't want trotter logged in when you do this.
 
One other thing to mention is that /usr is a system directory.  As such
its permissions are a bit touchy, and putting user files there can
produce unintended consequences.

I would have great reservations about this due to unexpected
interactions of things such as backups, access to certain system files
(through /usr/bin and /usr/sbin) for example, especially with multiple
users on the system.

By convention, many applications expect /home to contain user
directories, and while if coding standards are followed, the  shell
variable $HOME will point to the correct directory, in some cases poorly
written or experimental code is sometimes not so clean.


Regards,
Les H

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Upgrade and SELinux messages

2009-01-15 Thread Les
 Count   1
First SeenThu 15 Jan 2009 03:45:41 PM PST
Last Seen Thu 15 Jan 2009 03:45:41 PM PST
Local ID  63da56b0-2e3a-4b9c-bce7-d507e4081b93
Line Numbers  

Raw Audit Messages

node=localhost.localdomain type=AVC msg=audit(1232063141.902:13): avc:
denied  { create } for  pid=2562 comm=smartd
scontext=system_u:system_r:fsdaemon_t:s0
tcontext=system_u:system_r:fsdaemon_t:s0 tclass=netlink_route_socket

node=localhost.localdomain type=SYSCALL msg=audit(1232063141.902:13):
arch=4003 syscall=102 success=no exit=-13 a0=1 a1=bfe0e9ac a2=3e5ff4
a3=0 items=0 ppid=2561 pid=2562 auid=4294967295 uid=0 gid=0 euid=0
suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295
comm=smartd exe=/usr/sbin/smartd
subj=system_u:system_r:fsdaemon_t:s0 key=(null)

###
### I don't think I had smartd running before the upgrade.  
### but it is probably a good idea to run it.

None of these seem to be preventing me from using the system (haven't
tried printing yet).

I'll check the archives to see if anyone has solutions to these, but I
thought that they should go into the record.  

Prior to the upgrade I was running F8.  I just downloaded F10, made a
disk (two actually, the first didn't burn correctly), and then ran the
upgrade process.  My emails were imported correctly and now I am just
starting the update process.

No worries on these, but since this is the place for advice, can anyone
offer any?

OOPS, SELinux is preventing me from opening my Windows disk in Linux.
But while it tells me it is preventing the access, no alert is being
generated.  No information on how to fix it.

Ditto for the FAT32 formatted backup disk.  This has disaster potential.

I'll try the trick of touch ./relable
 I. 

Regards,
Les H





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Re: Firewall box stop responding

2009-01-14 Thread Les
If you google RFC 1918, it will show that your system has sent a request
for a private subnet out onto the global internet.  I am no IP guru, but
I suspect that you will find the solution somewhere in the linux
responses related to RFC 1918.

Regards,
Les H
On Wed, 2009-01-14 at 14:31 -0200, Leonardo Korndorfer wrote:
 Hi all!
 
 I'm in a situation that is kinda hard to see what's happening. So I'm
 going straight to the scenario:
 I have a firewall box that somehow stops responding to all services
 such as ssh and squid. It does answer ping.
 Early this morning I was looking to the messages log with tail -f when
 it just stop and then no responses again.
 
 Does anyone have lived this situation? 
 
 Here goes an example of the normality of logs when it just stops:
 
 /* regular log */
 Jan 14 13:35:08 mercfw1 snmpd[2040]: Received SNMP packet(s) from UDP:
 [192.168.0.13]:1660
 Jan 14 13:35:08 mercfw1 snmpd[2040]: Connection from UDP:
 [192.168.0.13]:1661
 Jan 14 13:35:08 mercfw1 snmpd[2040]: Received SNMP packet(s) from UDP:
 [192.168.0.13]:1661
 Jan 14 13:35:08 mercfw1 snmpd[2040]: Connection from UDP:
 [192.168.0.13]:1662
 Jan 14 13:35:08 mercfw1 snmpd[2040]: Received SNMP packet(s) from UDP:
 [192.168.0.13]:1662
 Jan 14 13:35:08 mercfw1 snmpd[2040]: Connection from UDP:
 [192.168.0.13]:1663
 Jan 14 13:35:08 mercfw1 snmpd[2040]: Received SNMP packet(s) from UDP:
 [192.168.0.13]:1663
 Jan 14 13:35:08 mercfw1 snmpd[2040]: Connection from UDP:
 [192.168.0.13]:1664
 Jan 14 13:35:08 mercfw1 snmpd[2040]: Received SNMP packet(s) from UDP:
 [192.168.0.13]:1664
 Jan 14 13:35:08 mercfw1 snmpd[2040]: Connection from UDP:
 [192.168.0.13]:1665
 Jan 14 13:35:08 mercfw1 snmpd[2040]: Received SNMP packet(s) from UDP:
 [192.168.0.13]:1665
 Jan 14 13:35:06 mercfw1 named[1731]: client 127.0.0.1#38570: RFC 1918
 response from Internet for 11.0.168.192.in-addr.arpa
 /* forced shutdown and normal start log */
 Jan 14 13:49:03 mercfw1 kernel: imklog 3.14.1, log source = /proc/kmsg
 started.
 Jan 14 13:49:03 mercfw1 kernel:
 Inspecting /boot/System.map-2.6.25-14.fc9.i686
 Jan 14 13:49:03 mercfw1 kernel: Loaded 28110 symbols
 from /boot/System.map-2.6.25-14.fc9.i686.
 Jan 14 13:49:03 mercfw1 kernel: Symbols match kernel version 2.6.25.
 Jan 14 13:49:03 mercfw1 kernel: No module symbols loaded - kernel
 modules not enabled.
 
 The seconds before (13:35:06) are analogous. Nothing evil has
 happened.
 
 Leonardo Richter Korndorfer
 
 personal @ http://leokorndorfer.no-ip.org
 http://counter.li.org #384363
 ICQ: 102788426
 
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Re: Advice to an audiophobe ??

2008-12-25 Thread Les
 sound, rather than the CD like quality of using 16 
 (or more) bits per sample. The catch with all that is it takes up a lot 
 space.
 
 To solve space issues (less a problem now that storage space costs a lot 
 less), compression schemes were developed. Most take advantage of 
 reducing the number of channels eg to mono, reducing the sampling rate, 
 or the number quantizing levels (bits/sample); but this is done in 
 context of the type of audio being compressed - eg human voices are 
 typically of lower frequency, and can sampled at a slower rate, and with 
 less levels.
 
 The biggest jump in compression was with psychoacoustic modelling, where 
 it was found that in a complex sound, a listener does not notice that 
 certain frequency (pitch) sounds become inaudible (or masked) by other 
 sounds.
 
 The reason there is so many formats, is because developers were 
 essentially competing to produce more highly compressed audio files, 
 without noticeable change in quality, when using a certain type of 
 audio, over a certain communication medium. Eg: when the fastest home 
 internet connections were slow modems, compression made it possible to 
 transmit voice signals over your internet connection. If you tried to 
 transmit music of higher quality that voice, you would have large audio 
 distortions that made it difficult to hear the original material.
 
 You might like to play with the audio editor program audacity (perhaps 
 from rpmfusion if you want to be able to import and save in certain 
 compressed formats (mp3)). It shows you a graphical representation of 
 the audio file, and eg lets you choose a zoom, start and stop position, 
 and just play back small parts of a file, so that you can work out what 
 the sound looks like to a computer.
 
 Hope that helps a bit more ;-)
 DaveT.
 
Hi, Dave,
I work in the IC Test industry, and that is the clearest non-math
explanation I have ever read.  I also teach applied DSP (fourier
analysis, time series analysis and uses of IFTs.)  I have endeavored to
explain to many and varied audiences these effects, but never came up
with such clarity.  

May I quote you?

Thank you,
Les Howell

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Re: Comcast permanent block on port 25

2008-12-21 Thread Les Mikesell

NiftyFedora Mitch wrote:


Port 25 in and out may be negotiated in some areas...
The default in my area was to block it but a polite call to SBC
unblocked it for me.
I still had issues at the other end as my reverse DNS was known home DHCP
class sites and I had to use them as a 'smart' host.

HTTP is more interesting... as it can be a business but without a
fixed IP address
dynamic DNS is seen as wonky  ... However a personal site with limited
traffic can also serve students homework.  But it need not be on port 80.

Look into various hosting or co-location solutions some are much
less expensive than
good bandwidth to the home.


Comcast bundles several accounts with email and space on their servers 
for storage and http service along with the connection.  There's not a 
lot of reason to run your own server unless you have dynamic content.


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Re: 1-second kernel

2008-12-20 Thread Les Mikesell

Frank Cox wrote:

On Sat, 20 Dec 2008 11:29:37 -0600
Mikkel L. Ellertson wrote:


One other thing - was the Amiga booting from ROM?


Depends on the Amiga.  On the 500 and 1000 models, you had to boot from a
Kickstart disk, then boot from a Workbench disk.  The 2000 had a Kickstart rom,
but you then had to boot Workbench from a disk (either a 3.5 floppy or a hard
drive).


I thought this concept was coming around again with some new PC's having 
Linux in ROM for near-instant on for certain operations?  Maybe the best 
approach for the people who care about boot speed would be to figure out 
how to get 'your' version of Linux into these ROMs.


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Re: Free Public Wifi, and me being snoopy

2008-12-20 Thread Les Mikesell

Frank Cox wrote:

A new wireless signal showed up on Network Manager on my Fedora 10 laptop
yesterday named Free Public Wifi.

As there has never, to my knowledge, been any announcement of anyone providing
free public wifi in Melville, I became quite curious about this and attempted
to connect to it.

However, while Network Manager connects with this signal it never actually
completes the process and lets me in.

Free Public Wifi appears to be something other than just a standard
home-style wireless router because the signal strength is a lot more even and
higher than anything else I get in my theatre other than my own wireless
router, so whatever it is has fair amount of power behind it.

Network Manager shows me an icon beside Free Public Wifi that I've never seen
before and I'm thinking that it might be a clue to what this is and how one can
connect to it.  I put the icon on my website here:

http://www.melvilletheatre.com/wifi.png

Can anyone tell me what that means, and what I might need to do to connect to
it?  So far the only steps I've ever needed to connect to any wireless routers
that I've set up myself  were to click on the signal listing and enter the
password, and I've never actually tried to connect to anything else before.


You see those all over the place and can tell from the 'ad hoc' mode 
that it is another computer instead of a real access point.  I always 
thought it was a scam trying to steal passwords or something, but I 
guess it's just another case of Microsoft stupidity:


http://billkosloskymd.typepad.com/wirelessdoc/2008/01/free-public-wi.html

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Re: Call for vote: Nautilus use Browser view for fedora 11

2008-12-20 Thread Les Mikesell

Mark wrote:



To all other ppl. please keep the usability list included since this
really is something they should be aware of.



Keep in mind that cross-posting to multiple lists sucks for everyone who 
is not a member of all of them because they'll get bounces pointing that 
out, and there's a fair chance that they won't get moderator approval 
and ever appear.


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Re: Call for vote: Nautilus use Browser view for fedora 11

2008-12-20 Thread Les Mikesell

Matthias Clasen wrote:

On Sat, 2008-12-20 at 20:53 +0100, Mark wrote:


Btw your idea of my spin idea might very well be true ^_^ it's just
that it sucks up so much time which i don't want to spend at it.



Creating a sabayon profile with your favourite changes and storing it
away in some safe place would take ~10 minutes (including the time to
install sabayon). The time and energy you have invested in this thread
by now probably measures in days...


Does sabayon allow publishing a profile so people could share their choices?

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Re: Call for vote: Nautilus use Browser view for fedora 11

2008-12-20 Thread Les Mikesell

Jeff Spaleta wrote:


That's a copout excuse.  You are spending a lot of time right now
beating your head on the brick wall on this issue.  Figuring out a
technical solution in the form of a LiveCD under the umbrella of the
GNOME project might actually be the better argument than what you are
doing now.


Is there a fixed policy on how fedora must relate to upstream packages? 
 That is, do you have a requirement to take every default that the 
upstream has (themes, etc.)?  Or can any packager make any whimsical 
change he wants at any time?  Or something in between?


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Re: 1-second kernel

2008-12-20 Thread Les Mikesell

g wrote:

-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

Konstantin Svist wrote:


So my question is, how plausible is running Fedora without initrd? Don't
the majority of users out there have similar hardware, making initrd
unnecessary?


'similar' is not the same as 'same'.

if every computer had *exact same* hardware, ok. but they are not *exactly*
same.


It doesn't break anything to have a few unused modules linked - you 
could probably have one kernel that would make initrd unnecessary on the 
majority of desktop/laptop machines - and servers (where you need 
specific scsi drivers) typically aren't booted frequently anyway.


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Re: OT: Comcast permanent block on port 25

2008-12-19 Thread Les Mikesell

Phil Meyer wrote:


Comcast, in their infinite wisdom, has begun to block all inbound port 
25 connections at my location.


I collect several mailing lists at my home domain which I have 
maintained for many years.


Plus, it has always been nice to have an email box that I could run my 
own spam filters on.


Because MicroSoft has created such a huge mess with spambots and the 
like, I have lost another privilege that not long ago was assumed, and 
now falls into a business only category.


I do not blame the consumers who are duped into buying computers with a 
pre-installed OS.


It is so VERY annoying that step by step, we lose individual freedoms 
because of corporate greed and incompetence.


Its somewhat like being in jail for something you did not do.  Or so it 
seems to me.


Sorry for the rant.



Quick-fix:  move the subscriptions to a comcast.net account (you can 
probably set up several email accounts associated with your existing 
comcast service) or a free gmail account.  Run fetchmail periodically to 
pull messages via POP and redeliver on your own server.  Everything else 
works the same.  If you use gmail, you can configure their server to 
'archive' messages as you download via pop so you can delete copies from 
your server as you read them and still be able to use the web interface 
to gmail to search for something later.   Or, just set up an imap client 
directly with gmail and not bother with your own server.


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Re: starting multiple simultaneous downloads of a file

2008-12-19 Thread Les Mikesell

Ali, Saqib wrote:

Hello All,

I am looking for a utility that can start multiple simultaneous
downloads of a file. I was looking into wget, but it doesn't seem like
that it can do that.

Any thoughts?


You've got a multi-tasking system.  Why not run as many copies of wget 
as you want?


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Re: starting multiple simultaneous downloads of a file

2008-12-19 Thread Les Mikesell

Marcelo Magno T. Sales wrote:

Em Sex 19 Dez 2008, Les Mikesell escreveu:

Ali, Saqib wrote:

Hello All,

I am looking for a utility that can start multiple simultaneous
downloads of a file. I was looking into wget, but it doesn't seem
like that it can do that.

Any thoughts?

You've got a multi-tasking system.  Why not run as many copies of
wget as you want?


I think he want to download multiple parts of the same file 
simultaneously and assembly the file at the end of the downloads. 
Multiple copies of wget would not get the job done.


Is that useful on a high-latency satellite link or something?

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Re: Call for vote: Nautilus use Browser view for fedora 11

2008-12-19 Thread Les Mikesell

Mark wrote:


btw. i never understood why Linus Torvalds was so opposed to Gnome.
i'm beginning to understand why.


How much less RAM would your system need if everything shared one window 
toolkit?  And how much better could it be if all development had focused 
on just one?


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Re: Comcast permanent block on port 25

2008-12-19 Thread Les Mikesell

Bruno Wolff III wrote:



the cable companies in the US typically sell a residential Internet
package which requires that you not run a mail or web server as part of
their terms of service and typically block inbound access to ports 25 
80 to those customers. Many also block port 25 outbound access to all
but their own SMTP servers. In exchange for this 'crippled' Internet
service, they charge roughly 1/3 the cost of a 'business' based Internet
service which doesn't block anything at all. It seems reasonably fair to
me.


How is it fair? Business accounts cost more because you get uptime guaranties
and real support


Errr, I think you've confused Comcast with something else...


and depending on the type of connection you may be allowed
to use your maximum bandwidth all of the time. (Though the latter service
typically is going to cost more than 3x the residential rate.)


The low cost residential account comes with terms that say you won't run 
servers on it.  If you aren't running a server, it doesn't matter much 
if they block port 25 or not.


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Re: Comcast permanent block on port 25

2008-12-19 Thread Les Mikesell

Bruno Wolff III wrote:

On Fri, Dec 19, 2008 at 16:00:29 -0600,
  Les Mikesell lesmikes...@gmail.com wrote:
The low cost residential account comes with terms that say you won't run  
servers on it.  If you aren't running a server, it doesn't matter much  
if they block port 25 or not.


Except whether or not you run a server has little to do with how much
it costs them to provide that service. And this there was actual competition,
that wouldn't be able to get away with that artificial market segmentation.


Maybe.  Or maybe the one you preferred would be bankrupt now.  Anyway, 
take it up with whatever local authority is giving Comcast a monopoly in 
your municipality since no one else can do much about it.


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Re: Setting up Linksys WRT54GL for Remote Server

2008-12-17 Thread Les Mikesell

Jim wrote:
Two boxes FC8-i386 behind a Linksys WRT54GL  router, both boxes have a  
static IP.
How do I set the router to allow me to connect by port 22 ssh to both 
boxes.


You probably only have one public IP so you can port-forward port 22 to 
only one inside address.  You can pick a different port to forward to 
port 22 on the other box - or if you want more convenient access, set up 
something like openvpn between the private networks behind the routers.


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Re: F10, VMware Server 2.0, and selinux

2008-12-17 Thread Les Mikesell

Gilboa Davara wrote:



So I don't understand.  Are you saying that VMware has no right to
impose some boundaries on what they will and will not support?   Are
they bound by some contract to provide answers/solutions to a free
product for every flavor of Linux used as host OS?   Or, are you saying
that their only obligation is to support every version of Fedora for
free?  And if so, what make Fedora so special to get support?


Right? They have a right to do what-ever they want. I never argued
otherwise.
Question is - should Fedora go along with their decision, and support
their semi-broken RPMs,  half-working SELinux support, missing upstream
kernel support and their decision to keep certain features Windows-only.


Fedora, support?? What's that?


FWIW my vote is a (big) no - Fedora's resources will be better spent on
qemu-kvm and virt-*.


I suppose working toward a linux binary standard that would actually 
make it possible for 3rd parties to build programs that install and run 
as expected on different distributions is too much to ask...  As, 
obviously, is asking for interface stability for more than a week at a 
time so 3rd parties could specifically target the distribution's 
nonstandard quirks in a useful way.


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Re: Evolution with mapi plugin?

2008-12-17 Thread Les Mikesell

Christopher A. Williams wrote:


  Some businesses have now intentionally modified their email clients to NOT 
render RTF and HTML, and have made it such that to enable them is a firing 
violation of company policy.


i.e. don't count on being able to say the blue text in bullet three is the 
important part anymore.


...And we all know that, while such exceptions exist, they are indeed
the exceptions and not the general rule. In fact the only CIO positions
I know of that would border on such a policy are US Navy.

In the corporate world, such a policy would likely get the CIO fired by
the CEO and the Board...


And in the places where it didn't, the typical email would just become a 
word or excel attachment instead of html.


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Re: Setting up Linksys WRT54GL for Remote Server

2008-12-17 Thread Les Mikesell

Dave Ihnat wrote:

On Wed, Dec 17, 2008 at 12:59:04PM -0600, Les Mikesell wrote:
You probably only have one public IP so you can port-forward port 22 to  
only one inside address.  You can pick a different port to forward to  
port 22 on the other box - or if you want more convenient access, set up  
something like openvpn between the private networks behind the routers.


I've done this often when dealing with retail-grade router/firewalls
that don't allow VPN termination at the device.  I can't recall if the
WRT54GL allows for port mapping, though--which you need for the scheme
mentioned above.  It's not really a problem, though; just have the
second machine listen on a different port, and forward the same port.


I haven't tried it, but I believe the WRT54GL is one of several that can 
have the firmware replaced with a free linux version that includes 
openvpn and other tools.


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Re: Setting up Linksys WRT54GL for Remote Server

2008-12-17 Thread Les Mikesell

Jim wrote:


Map port 8122 on the external IP to be routed to the first box's port 22
Map port 8222 on the external IP to be routed to the second box's 
port 22


When you want to log into the boxes remotely, specify the port as part
of the command:

ssh -p 8222 example.com
ssh -p 8122 Yo.ur.IP.Address

or

scp -P 8122 yourfile example.com:

Note that Secure Copy (scp) uses capital -P while Secure Shell (ssh)
uses lowercase. Trips me up all the time.

  

I'm using NX for my remote connections on both ends.
How would I do this using NX ?


Click the 'configure' button and type in the 'Port' value next to the 
Host where it current has 22.


So I think what your saying is, in the WRT54GL (Server) , port 
forwarding,

map 8122 to 22 to 192.168.1.253
map 8222 to 22 to  192.168.1.254
That's on the Server side.

But on the client side in NX for each user on server, how do you treat 
that in NX ?


I tryed to map 8222 to 22 on Port Forwarding in  WRT54GL, but it 
switches the ports around after saving settings, to 22 in first box 
'to' 8222 in second box.


What am I doing wrong ?


If you can't get it to map different port numbers, you can make sshd 
listen on a different port - see /etc/ssh/sshd_config.


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Re: What are these F-10 boot slides?

2008-12-16 Thread Les Mikesell

Anne Wilson wrote:

On Tuesday 16 December 2008 17:00:16 Paul W. Frields wrote:

The boot screen is somewhat secondary to the main target of decreasing
boot time.  Whether any particular machine gets the spiffy graphic, it
should still boot significantly faster using the new system.  Although
kernel mode setting hasn't been implemented for all cards, it was
originally supposed to also work for Intel too -- until Intel made an
eleventh-hour change.  We hope to have those and many more cards
working with the spiffy boot graphics for Fedora 11, but regardless,
boot speed is a very important consideration.


Well, on my netbook it has been spectacularly unsuccessful.  The boot time is 
horrifically long.  It seems that it first tries to bring up my wireless 
connection, failing miserably, then it tries to mount my 3 defined nfs mounts.  
Two of them are always available, one is not always.  Instead of a reasonably 
short wait time, then moving on, it seems to wait a very long time.  If 
anyone's interested I'll time it.  Failing gracefully is something it needs to 
learn.


By design NFS should wait for success (you may not have anything 
else...).  If failure is expected or acceptable, you need to specify 
bg,soft for the mount - or better yet use the automounter so you don't 
even consider mounting until the need arises.


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Re: Free (as in speech) flash alternative

2008-12-16 Thread Les Mikesell

Kam Leo wrote:
 
By using or consuming flash content you will be supporting the very

company that created the Flash standard, non-free players, and
associated content  creation tools. Don't use flash and you will not
be offended.


And the alternative?  Silverlight/Moonlight?

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Re: OT: mp3 - ac3 - SP/DIF output?

2008-12-15 Thread Les Mikesell

Tom Horsley wrote:

Is there a media player that can do
something like use the ffmpeg libraries to do the ac3 encoding
on the fly and send the digital stream to my SP/DIF output?


Answering my own question, I'm currently listening to music
on my surround system being played via:

mplayer -ao alsa:device=hw=0.0 -af lavcac3enc=tospdif filename

Only have to sort through the 47,621,337 possible command line option
combinations to figure it all out :-). (Actually I reused the alsa device
option from the DVD ac3 passthrough magic I found previously on the web).

I guess on the fly audio encoding isn't very demanding, my CPUs
are both hovering around 1 to 2% usage.


If you only have 2 channels, is there some reason to encode as ac3 
instead of pcm?


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Re: E-mail Server

2008-12-14 Thread Les Mikesell

Leon Vergottini wrote:

Hi

I have been tasked to commissioned an e-mail server  in the first 
quarter of next year.  I got this task because I am the only one at work 
that plays and have a small bit of understanding of how Linux work.  So, 
I am on a research spree.  I have already had a look at the following 
sites:


The Linux document project
How to forge
Flurdy.com

I do not ask for step by step instructions, although it will be nice, 
however I ask that you guys will point me to resources on the internet 
that may help me in this regard.


If you want something appliance-like where you just add users and 
everything works, look at SME server from

http://wiki.contribs.org/Main_Page.

It is mostly based on Centos (as others have suggested for stability) 
but modified so all administration is through a simple web interface. It 
can also provide many other services but it would be reasonable to 
deploy strictly as a mail server if you want.


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Re: Second try: Clarification of statement about stateless sytem]

2008-12-12 Thread Les Mikesell

Aaron Konstam wrote:

I tried once and got no response so I am trying again. It is strange
that people understand all such obscure things but can't explain one of
the many gobbledygook statements made in the release notes.

In section 2.2.6 of the F10 release notes is the following statement:

Support for keeping a persistent /home with the rest of the system
stateless has been added for Fedora 10.

I don't understand that statement? Could someone explain it, especially
the meaning of the words persistent and stateless in that context.


Since nobody else is answering, I'll take a guess...  Stateless should 
mean that the OS could be installed/updated on the fly during bootup, 
whether done as a PXE boot into RAM or copied/cached on the local hard 
disk. There once was a 'stateless' linux project but I'm not sure if 
this is a specific reference or if anyone is still working on that. 
Anyway, the idea is that you can have a group of client computers with 
no maintenance or installation for the OS but the /home directories are 
saved across reboots, either on a local drive or nfs-mounted from a server.


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Re: infrastructure modest proposal

2008-12-12 Thread Les Mikesell

Kevin Martin wrote:


FWIW, the 3 layer model is used to great effect in everyday business. 
First, there's testing where the developers get to play to their
hearts content and, hopefully, get a product to production level. 
Then the product goes to qa or qc where it burns in for awhile

with other products that may or may not play nice with it (aren't
double quotes wonderous little things!).  If they don't play nice
together then it goes back to testing for more work and then back to
qa/qc until it all works as planned.  Then, and only then, does it move
to production.  I understand that Fedora is a bunch of folks doing the
work on a volunteer basis but that just makes the idea of a qa
environment that much more useful.


Someone is probably going to claim that rawhide/updates-testing/updates 
provides this 3 layer model for fedora.  It doesn't, because the 
packages roll independently. No one can take qa seriously if it doesn't 
test the exact configurations that are going to exist in production, 
which is impossible with this structure.  If the moves to/from 
updates-testing were batched in all-or-nothing updates, or another layer 
of updates-qa was added for this batch move process, it might actually 
become possible to do meaningful tests with packages in their proposed 
production context.


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Re: Why was this dbus disaster released mid-release?

2008-12-12 Thread Les Mikesell

Robert P. J. Day wrote:

On Fri, 12 Dec 2008, Jeff Spaleta wrote:


On Fri, Dec 12, 2008 at 8:35 AM, Joshua C. joshua...@googlemail.com wrote:

Does the maintainer read this list?  He still works on it (in
koji) but it seams he doesn't know that the user are using his
broken update

He's aware.. he's apologized publicly in the -devel-list.




  in a world where people are simply used to windows crashing and
burning on a regular basis, it's amusing to see the consternation in
the linux community when one bad package escapes into the wild.

  man, some of you folks have gotten spoiled.


Sorry to destroy your illusions, but I work with hundreds of windows 
servers that stay up for years with only a few scheduled reboots. 
Before (say) Win2k SP2 you might have been able to make a point about 
this.  Today you can't.


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Re: Sprint service smartphone recommendation for F10?

2008-12-12 Thread Les Mikesell

Max Pyziur wrote:


What do you expect to be able to do from the phone?  They would all work


My first PDA was/is a Sharp Zaurus which used UTF-8 encoding. Many of my
contacts are in the FSU, hence the information is in Ukrainian (a bit in
Russian) I'd like to be able to move my contact information to a device
where I can continue to use this information.

I've looked at the Samsung Instinct at a Sprint dealer. While the touch
technology is appealing, I saw that the Instinct's web browser couldn't
display Cyrillic characters, replacing them with empty squares. Looking
briefly through Instinct-related forums to see if a Cyrillic font could be
downloaded, there were none.


After a recent update, the instinct can run some 3rd party java apps, 
including Opera Mini.  I don't know if that changes the font situation, 
though.



Can the Palm Centro handle UTF-8 or are their fonts only 8bit and Cyrillic
is shown in CP1251?


Can't help with that.  There's a Sprint phone forum at
http://forums.buzzaboutwireless.com/baw/ that might have something.


Also, I'm not sure what else to look for in a phone. When picture-taking
phones were introduced, I thought that it was a novelty and a feature that
I would never use. When the choices on an upgrade only included
picture-taking phones, I got one. Now, I see that they are useful,
especially when there is an expedient need where quality isn't as
important as the ability to illustrate the shot (a display in a window, an
emergency situation).


The instinct camera is so-so.  No zoom, no adjustments - but not 
horrible if you have enough light and video mode isn't bad.



I see that the Instinct has GPS; I generally know where I'm going, but I'm
amazed that when driving during evenings on the New York State Thruway at
how many people have a GPS device of some sort visible through the window.
Perhaps I too would find GPS useful.


The instinct has a handy 'search' feature to locate nearby restaurants, 
banks, and about anything else (gas by price, etc.) that is handy when 
traveling even if you know the route.  It also has 'movies near me' 
where you can drill down to review, but that may be on all the sprint 
phones with gps and data.


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Re: (Off Topic ) Open Source: The Model Is Broken ??

2008-12-07 Thread Les

On Sat, 2008-12-06 at 11:43 -0600, Les Mikesell wrote:
 Ed Greshko wrote:
 
  1) be ABLE to write good documentation. You yourself acknowledged
 good documenters are scarce. You're either good at it or you
 aren't, it's just like programming or any other complex creative
 activity. This is the biggest obstacle, or at least the first thing
 that makes the write it yourself or shut up useless (at least). 

  Actually, my motives where much more subtle (sinister). 
  
  I tend to feel that some those wanting more/better documentation don't
  quite realize how difficult producing quality documentation for the
  masses truly is.   So, it is more of try doing it and maybe you'll gain
  some appreciation for the difficulty.
 
 How does understanding the difficultly help?  And other than the 
 interactive desktop programs like the office tools, why should 'masses' 
 need to know all the details?
 
  2) have enough free time, after you've paid mortgage, food and bills,
 to start and finish writing a manual. Unless you're _paid_ just to
 write that documentation, of course. Even if you're good, it takes
 a lot of time and effort to do a good job.
 

  Which is why there may be a niche market for some company involved
  support to include documentation.  But, that would require a business
  plan and a business model  :-(
 
 There is a well known book publisher covering technical topics with a 
 bazillion titles, but published books can't keep up with the rate of 
 change in fedora.  What we need is a way to eliminate most of the need 
 for local configuration in the same way open source eliminates most of 
 the need for local programming for common tasks.  That is, have a way 
 that a configuration that someone has expertly tuned for a particular 
 purpose can be shared with anyone who needs to do the same kind of work. 
 Fedora mostly just ships one config file for every program and might do 
 a little tweaking to match hardware and user choices during 
 installation.  If there were perhaps a hundred choices instead, 
 pre-tuned to different usage models, the end user would only need to 
 know what he wanted to accomplish, not the million variables he had to 
 change to do it.
But who would collect, setup the access, vet the operation of those 100
setups, provide accurate information about how they are tuned, and so on
and so on and so on

Regards,
Les H

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Re: (Off Topic ) Open Source: The Model Is Broken ??

2008-12-07 Thread Les

On Sat, 2008-12-06 at 19:22 +0100, M. Fioretti wrote:
 On Sat, Dec 06, 2008 09:31:55 AM -0800, Les wrote:
  On Sat, 2008-12-06 at 12:04 +0100, M. Fioretti wrote:
 
   1) be ABLE to write good documentation. You yourself acknowledged
  good documenters are scarce. You're either good at it or you
  aren't, it's just like programming or any other complex
  creative activity.
  
 
  I haven't written anything for LINUX, but I can tell you that the
  biggest issue is getting something on paper (in bits?).  Once the
  first effort is in, LOTS of people can fix it and even copy it and
  redo some or most of it... That's OK, if your intention is to get
  information into the Linux sphere.
 
 I was **explicitly** speaking, see the quote above, of **good**
 documentation. And since I already wrote how weak I find assumptions
 like yours above, I'll simply point you to Point 1 of
 http://digifreedom.net/node/61.
 
  So, my advice is just do it.  someone will fix it.
 
 Here I could simply answer after you, please or repeat what I wrote
 above: we're talking about quality, not quantity. But I have a very
 fresh, real world example of somebody who just did it and things
 didn't go as you say, so I'll let that speak for itself. Have a look
 to the thread about Postfix How-tos starting at
 http://archives.neohapsis.com/archives/postfix/2008-12/0133.html
 
 the thread summary is:
 
 - postfix gurus only wrote good, but too difficult docs
 - some popular postfix howtos (by other people who just did them)
   are broken
 - newbies read **those** docs only, as the official ones are too
   difficult
 - they make mistakes following those docs, ask how to fix them to the
   postfix list. This happens several times a year.
 - every time, postfix gurus answer those docs are broken, check the
   official docs
 - for any number of reasons, postfix gurus have no plan to write better
   howtos themselves
 - nobody but postfix gurus could write better howtos than those
   already available, or fix those ones. Excepted a good technical
   writer **paid** enough to spend on the subject lots of time, since
   it isn't an easy task by any means.
Actually Marco, I have written many documents, and am a pretty decent
technical writer within the area of my particular expertise.  I am a
Test Applications person who wrote over 60 programs for Teradyne Inc.
along with several hundred pages of documentation on system use and
technical skills for test applications.  You would find some of them in
nearly every company in the world using Teradyne systems.  I wrote and
delivered training on RF, Video, DSP, system correlation, and several
other topics, and no one ever complained that they didn't get their
money's worth.

Yet even my documentation was often improved upon by those who followed
later.  That is engineering in progress.  Some of those changes were
patently wrong as well, and often what the uninitiated see as a failure
of the documentation is really a failure in following well what was
written.  In many cases the folks who criticize documentation haven't
actually read it.  I read nearly a 1000 pages a week of technical
documentation, and that is what makes me good at what I do.  The field
for Technical topics is not ever static.  During my career, from vacuum
tubes to DTL, then TTL, then MOS, then CMOS and advanced BI-CMOS, some
DMOS, and of course the advanced processes today where devices are so
small that you practically need a microscope to read their labeling, the
field has continually advanced.  Advanced architectures today for
software, hardware, and OS's are changing at an increasing rate, and
have been for decades.  It won't stop, or get easier, but only
magnitudes of more difficult if you do not keep up.

When you talk about how docs are broken, and then refer to Wikipedia,
you are not looking at true technical documentation, but historical
documentation, and there is a real difference.  What is needed for
technical documentation is indepth knowledge of not only how a system
works, but why, and why you should not short cut the means and methods
supplied.  Does that mean that everyone will read the documentation?  Of
course not, and of those who really read the documentation, how many
will actually act according to the document?

My experience is that at every engineering site, there are one or two
guru's, and they are the ones who actually do the grunt work to
understand how things work.  They read the documents.  Most of the rest
to some degree piggy back on those few.  That's not bad either.  It is
human nature.  The best companies find out the best capabilities of each
and capitalize on them, as well as working with their weaknesses to
improve the people within the company.  The most successful companies
leverage that expertise across their customer base and across product
lines. And that leveraging is accomplished through abbreviated
documentation targeting specific needs, along

Re: (Off Topic ) Open Source: The Model Is Broken ??

2008-12-07 Thread Les

On Sat, 2008-12-06 at 19:22 +0100, M. Fioretti wrote:
 On Sat, Dec 06, 2008 09:31:55 AM -0800, Les wrote:
  On Sat, 2008-12-06 at 12:04 +0100, M. Fioretti wrote:
 
   1) be ABLE to write good documentation. You yourself acknowledged
  good documenters are scarce. You're either good at it or you
  aren't, it's just like programming or any other complex
  creative activity.
  
 
  I haven't written anything for LINUX, but I can tell you that the
  biggest issue is getting something on paper (in bits?).  Once the
  first effort is in, LOTS of people can fix it and even copy it and
  redo some or most of it... That's OK, if your intention is to get
  information into the Linux sphere.
 
 I was **explicitly** speaking, see the quote above, of **good**
 documentation. And since I already wrote how weak I find assumptions
 like yours above, I'll simply point you to Point 1 of
 http://digifreedom.net/node/61.
 
  So, my advice is just do it.  someone will fix it.
 
 Here I could simply answer after you, please or repeat what I wrote
 above: we're talking about quality, not quantity. But I have a very
 fresh, real world example of somebody who just did it and things
 didn't go as you say, so I'll let that speak for itself. Have a look
 to the thread about Postfix How-tos starting at
 http://archives.neohapsis.com/archives/postfix/2008-12/0133.html
 
 the thread summary is:
 
 - postfix gurus only wrote good, but too difficult docs
 - some popular postfix howtos (by other people who just did them)
   are broken
 - newbies read **those** docs only, as the official ones are too
   difficult
 - they make mistakes following those docs, ask how to fix them to the
   postfix list. This happens several times a year.
 - every time, postfix gurus answer those docs are broken, check the
   official docs
 - for any number of reasons, postfix gurus have no plan to write better
   howtos themselves
 - nobody but postfix gurus could write better howtos than those
   already available, or fix those ones. Excepted a good technical
   writer **paid** enough to spend on the subject lots of time, since
   it isn't an easy task by any means.
 
since it isn't an easy task by any means is the statement I hear a
lot.  The truth is that writing should be part and parcel of every
engineers job.  However it is seen as grunt work by many young
engineers who have not been well exposed to the need for documentation
within their education.  Programmers are taught self documenting
code... What an oxymoron.  We do call it code for a reason.

Hardware and software engineers are not well educated in the need for
documentation, and seldom given any time at all to do that portion of
the job.  If you take time to do the correct support task some fool that
doesn't know anything about the task, the skills, the knowledge, or the
overall expertise of state of the art will criticize it.  As a result
you get bad support, poor products, and the inability to transfer
knowledge.  Read the documents on ANY software package built on object
oriented code, and tell me how many bits of the data, code and
operation are required to actually accomplish the given task, or how it
can be improved.  Ever tried to optimize object oriented code?  I have.

There are a lot of educators on this list.  I hope they read my last
post on this and this one.  Our societies depend upon the software and
hardware being designed and built today.  Your cars systems, aircraft
systems, medical systems, alarm systems, communications systems are all
becoming vulnerable to loss of knowledge and expertise.

Sorry Marco, just one of my pet peeves.

Regards,
Les H

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Re: Root in FC-10

2008-12-07 Thread Les

On Sat, 2008-12-06 at 19:34 -0500, R. G. Newbury wrote:
 Mikkel L. Ellertson wrote:
 
  After all, we do not want to see Linux systems that are as insecure
  as Windows systems are by default. Running as root all the tine
  defeats most of the security of a Linux system.
 
  Mikkel
 
 Well how *exactly* does running *as root* defeat *most* of the security 
 of a linux system. Sorry but that is BS.
 Virtually any exploitable point allows an escalation by way of further 
 exploit. If and only if, it is possible to ensure (to 100%) that no 
 exploit can be escalated to provide root level privileges, is it 
 reasonable and logical to claim that not using root, is safer than 
 using root. It has never been explained to my satisfaction how the 
 supposed 'sandbox' of being user in fact adds any extra security to the 
 computer.

Becuase it is not just a sandbox, but a permissions thing.  Processes
a user can start don't have write access to the global system.
Processes started from a root account do.  Someone will no doubt say
that this can be overridden, but it is more difficult than just having
an open invitation to the entire system file structure as you do when
root.

Regards,
Les H

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Re: (Off Topic ) Open Source: The Model Is Broken ??

2008-12-07 Thread Les Mikesell

Les wrote:

There is a well known book publisher covering technical topics with a 
bazillion titles, but published books can't keep up with the rate of 
change in fedora.  What we need is a way to eliminate most of the need 
for local configuration in the same way open source eliminates most of 
the need for local programming for common tasks.  That is, have a way 
that a configuration that someone has expertly tuned for a particular 
purpose can be shared with anyone who needs to do the same kind of work. 
Fedora mostly just ships one config file for every program and might do 
a little tweaking to match hardware and user choices during 
installation.  If there were perhaps a hundred choices instead, 
pre-tuned to different usage models, the end user would only need to 
know what he wanted to accomplish, not the million variables he had to 
change to do it.



But who would collect, setup the access, vet the operation of those 100
setups, provide accurate information about how they are tuned, and so on
and so on and so on


It is definitely a missing piece but more a 'how' than a 'who'.  In my 
opinion it should be part of a distribution's infrastructure, needed 
just as much as the part that manages the source code.  People who have 
a configuration they want to share should be able to do it with an 
action as simple as committing to a version control system.  In fact 
with a distributed VC, it should be possible to have a system that could 
be used locally for farms of machines and also push a copy up to a 
public repository.


I can't imagine anyone today designing an operating system with 
thousands of lines of unversioned cruft spattered all over the place 
that actually control the way it works (or doesn't...).


Vetting should be like every other fedora item: let the users download 
it and if it is broken they get to keep both pieces.  Having a way to 
add comments and feedback would let you crowdsource the work of 
determining what works best in what situations, though.


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Re: Some people mis interpret Fedora's Mission Statement.

2008-12-07 Thread Les Mikesell

Arthur Pemberton wrote:


Thus, we are able to use the Fedora Project and the
JBoss.org communities as proving grounds and virtual
laboratories for new technology that we can draw upon for
inclusion in our enterprise technologies. Additionally, the
open and transparent nature of these projects provides our
clients and potential clients with access and insights to
the direction of these projects. 


a) The question about how much money Redhat spends on Fedora is
irrelevant.  Redhat needs Fedora.   Redhat didn't decide to support
Fedora out of the goodness of their hearts.  Fedora users are Redhat's
key to innovation.

b) The above quote doesn't say anything about the intended software
quality in the Fedora project.  All it says is that its a test bed.
That doesn't mean its a testbed of beta software.  As a matter of fact,
how can you gauge the usefulness of a piece of software if its beta
quality ?



Seriously? Am I just misreading? I don't see it defined as a test bed there.


How does 'proving ground' and 'laboratory' differ substantially from 
'test bed'?


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Re: Some people mis interpret Fedora's Mission Statement.

2008-12-07 Thread Les Mikesell

Arthur Pemberton wrote:
Thus, we are able to use the Fedora Project... 




So you respond to my statement of what _Fedora's_ objectives are with
a statement of what _RedHat's_ objectives are?

Is the fact that they explicitly refer to Fedora are a community in
which they participate not relevant to you? Giving and taking from the
community -- isn't that a definition of a community member?


Do you usually talk about your community in terms of how you can 'use' it?

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Re: OT: rdesktop and netmeeting

2008-12-07 Thread Les Mikesell

Wayne Feick wrote:

On Sun, 2008-12-07 at 11:33 +, Anne Wilson wrote:


On Wednesday 03 December 2008 01:44:24 Jamie Bohr wrote:

The use of rdesktop does not allow sharing in netmeeting.  RDP and
netmeeting, from what I understand, uses the same port.
In the past I used gnomemeeting with netmeeting.  gnomemeeting is now ekiga, 
which I haven't used, so I don't know whether it would meet your needs, but 
it's worth checking out.


Anne




I gave Ekiga a try after I installed F10, but it tends to hang. Has
anyone had good luck with it?

Does anyone have experience video conferencing with Macs? A number of
family members are running Macs these days, and it'd be great to be able
to connect with them.



If you have SIP connectivity, Counterpath's X-lite might work for you:
http://www.counterpath.net/X-Lite-Download.html.   I haven't tried it 
with F10 though.


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Re: help

2008-12-06 Thread Les
Are you using yum?  or some other process?

Regards,
Les H
On Thu, 2008-12-04 at 11:18 -0800, Md. Nazmul Hamid Reza wrote:
 hi 
 i am running fedora 9 shulphur. i could not install any software in
 it.
 when i try to install then it shows 'You don't have the necessary
 privileges to install local packages'.
 what can i do?
 plz help me
 
 
 
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Re: (Off Topic ) Open Source: The Model Is Broken ??

2008-12-06 Thread Les

On Sat, 2008-12-06 at 12:04 +0100, M. Fioretti wrote:
 On Sat, Dec 06, 2008 17:14:57 PM +0800, Ed Greshko wrote:
  
  When I hear folks lamenting the lack of documentation I often wonder
  what percentage of them dedicate their time to a documentation
  project.
 
 Would it make any difference if they did? Is it fair to ask them
 write it yourself or shut up?
 
 In order to dedicate your time to documentation one would need to:
 
 1) be ABLE to write good documentation. You yourself acknowledged
good documenters are scarce. You're either good at it or you
aren't, it's just like programming or any other complex creative
activity. This is the biggest obstacle, or at least the first thing
that makes the write it yourself or shut up useless (at least). 
 
 2) have enough free time, after you've paid mortgage, food and bills,
to start and finish writing a manual. Unless you're _paid_ just to
write that documentation, of course. Even if you're good, it takes
a lot of time and effort to do a good job.
 
 Marco
 
 -- 
 Your own civil rights and the quality of your life heavily depend on how
 software is used *around* you:http://digifreedom.net/node/84
 
I haven't written anything for LINUX, but I can tell you that the
biggest issue is getting something on paper (in bits?).  Once the
first effort is in, LOTS of people can fix it, and several will and
even copy it and redo some or most of it with their name on it.  That's
OK, if your intention is to get information into the Linux sphere.  

So, my advice is just do it.  someone will fix it.

Regards,
Les H

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Re: (Off Topic ) Open Source: The Model Is Broken ??

2008-12-06 Thread Les Mikesell

Ed Greshko wrote:


1) be ABLE to write good documentation. You yourself acknowledged

   good documenters are scarce. You're either good at it or you
   aren't, it's just like programming or any other complex creative
   activity. This is the biggest obstacle, or at least the first thing
   that makes the write it yourself or shut up useless (at least). 
  
Actually, my motives where much more subtle (sinister). 


I tend to feel that some those wanting more/better documentation don't
quite realize how difficult producing quality documentation for the
masses truly is.   So, it is more of try doing it and maybe you'll gain
some appreciation for the difficulty.


How does understanding the difficultly help?  And other than the 
interactive desktop programs like the office tools, why should 'masses' 
need to know all the details?



2) have enough free time, after you've paid mortgage, food and bills,
   to start and finish writing a manual. Unless you're _paid_ just to
   write that documentation, of course. Even if you're good, it takes
   a lot of time and effort to do a good job.

  

Which is why there may be a niche market for some company involved
support to include documentation.  But, that would require a business
plan and a business model  :-(


There is a well known book publisher covering technical topics with a 
bazillion titles, but published books can't keep up with the rate of 
change in fedora.  What we need is a way to eliminate most of the need 
for local configuration in the same way open source eliminates most of 
the need for local programming for common tasks.  That is, have a way 
that a configuration that someone has expertly tuned for a particular 
purpose can be shared with anyone who needs to do the same kind of work. 
Fedora mostly just ships one config file for every program and might do 
a little tweaking to match hardware and user choices during 
installation.  If there were perhaps a hundred choices instead, 
pre-tuned to different usage models, the end user would only need to 
know what he wanted to accomplish, not the million variables he had to 
change to do it.


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Re: (Off Topic ) Open Source: The Model Is Broken ??

2008-12-06 Thread Les Mikesell

Tom Horsley wrote:


Even worse, the lack of documentation forms a kind of positive
feedback loop, increasing the feeling that things need to be
rewritten, not because they really need it, but because it is
easier to rewrite than to understand how to modify the existing
code.


I wonder if there is any research or statistical work that looks at the 
upstream packages in terms of rate of code change, or more specifically 
at the rate of change of external API's or even non-backwards-compatible 
changes to those APIs?  A rating like that would give a real indication 
of how much choosing to use such a program is going to cost you in 
maintenance over time.


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Re: (Off Topic ) Open Source: The Model Is Broken ??

2008-12-06 Thread Les Mikesell

Ed Greshko wrote:

 There is a well known book publisher covering technical topics with a

bazillion titles, but published books can't keep up with the rate of
change in fedora.

*** I'm not talking about FEDORA...the article wasn't about FEDORA *** 
And this is getting even more OT than before.


To whatever extent fedora wants to claim to be the leading edge 
distributor of open source, it is all about fedora - and whether they 
want to claim responsibility or not, fedora and Red Hat before the split 
have almost certainly dropped more code in more peoples laps than anyone 
else.  Even if the article was strictly about businesses using RHEL, the 
changes all start being distributed in fedora - including the ones that 
are going to cause maintenance issues for users upgrading to the next RHEL.


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Re: Analog-to-Digital Audio:

2008-12-06 Thread Les Mikesell

Dean S. Messing wrote:

Mikkel L. Ellertson wrote:

Tim wrote:

Patrick O'Callaghan:

Turntables are also available. Ironically, a lot of these actually
come with Audacity even though they're marketed for Windows.

Mikkel L. Ellertson:

For example:
http://www.geeks.com/details.asp?invtid=3DTTUSB-PB-Rcpc=3DSCH

I'd be very surprised if any of those plastic turntables were anything
but utter crap.  But then they're aimed at the MP3/iPod users, where
audio quality is the least thing on their mind...

Considering the quality of the analog to digital converter most
people are going to be using, it probably would not be much better
using a quality turntable, cartridge, and preamp. The A to D
converter in the sound cards of most computers is not that great.
(Good enough for mp3, but that is about it.)


What sound cards (that have Linux drivers) would you recommand for
very high fidelity stereo digitising?  I have two purposes.  One is a new
interest in audio work.

Another is a project in which I need to digitise and analyse two
related analogue waveforms.  Low noise, good linearity, flat
freq. response down to 5 Hz, sampling rate of (at least)
192 Ksamples/sec are my initial specifications.  The flat response is only
a want.  I can calibrate out any deviations if they are not severe
(like being at -60dB at 5 Hz :-).



You probably want to start here: 
http://ccrma.stanford.edu/planetccrma/software/ for anything resembling 
professional audio On Linux.


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Re: (Off Topic ) Open Source: The Model Is Broken ??

2008-12-06 Thread Les Mikesell

M. Fioretti wrote:



There is a problem peculiar to the free/open source world in that poor  
quality versions of things have no reason to ever go away.


What we're discussing now, that is your just do it, someone will fix
it approach, has nothing whatever to do with the software license.
Because we're talking of documentation written, or possibly improved,
by third parties, not the developers.


What happens to the people trying to use it relates very much to the 
license, although only as a side effect.  Commercial software vendors 
tend to maintain their own knowledge bases and attrition takes care of 
cleaning up the things that are out of date.  With free stuff, you can 
probably still find copies of anything that has ever been released and 
it will clutter any searches you attempt.



I don't have a solution for this - it is just an observation that if
anyone ever releases bad documentation or even advice, others will
be finding and following it years later via google and other
archives.


but this is a problem only because releasing crap documentation (the
just do it, someone will fix it kind) is much, much easier than
releasing good stuff, which is again the only point I was making.  In
the Postfix example, if such documentation existed the Postfix gurus
would simply tell newbie don't read A, read B. Instead they say
don't read A, read the mountain of over-detailed stuff at postfix.org
even if you could go by with one decent, ten page how-to.


One decent ten page how-to is right for 10% of the installs, a different 
ten page how-to would be right for a different 10%.  But there's no way 
to find the one you need and avoid the others.



I have a different take on this.  Complex programs like postfix have
(and need) thousands of options to cover every possible
case... Rather than confuse people who should be just following
standards with the thousands of options they shouldn't touch anyway,
we need a dozen templates for this sort of program.


Right. Now, who could write such good templates, ie distill without
errors those thousands of options and explain the result clearly, in
order to minimize misunderstandings, except the developers themselves
or (much better) some pretty good technical writer who's either paid
to do it or already financially secure?


None of the above.  Only a person who actually runs the program in 
production over a period of time will have a usable template, and it 
will only be suitable for some subset of other situations.  The problem 
is that he has no way to share his work with the thousands of other 
people who could use exactly the same setup, and those thousands of 
people have no way to find the dozens of good examples that exist whose 
owners might want to share them.  For the code, there are source code 
archives where you can easily track changes over time and alternate 
branches of development - for a very small developer base.  For the much 
larger user base there is only a choice of 500-page books detailing 
every obscure config option or the single default config that comes with 
a distribution.




We keep going back to the original point, don't we? (and probably
could well stop here, since we're not the ones who could fix this and
it isn't Fedora-specific in any way)


Who could fix it?  What we need is a location and mechanism for admins 
to share their config files with similar tools that code developers have 
to maintain versions/branches etc., and view diffs across them.  And to 
whatever extent possible, fedora could produce alternative packaged 
configs on the order of the caching dns server that would help some 
subset of users.  Making an end user need to know about a million config 
 options to create one of a dozen or so common setups doesn't make much 
more sense than just throwing the source code at them.


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Re: (Off Topic ) Open Source: The Model Is Broken ??

2008-12-06 Thread Les Mikesell

M. Fioretti wrote:

On Sat, Dec 06, 2008 22:18:23 PM +, Alan Cox wrote:


There is a problem peculiar to the free/open source world in that
poor quality versions of things have no reason to ever go away.
That takes

Which actually isn't a problem but a feature.


with source code, yes, that's a blessing, no question. With bad
documentation, which is the only thing we were discussing (*), no.

(*) me, at least. Les actually diverged a bit throwing software
itself, rather than its documentation, in the picture.


I tried to separate the concepts of end-user documentation for the 
things that end users should need to know (like using interactive office 
programs to create your own content) from things related to program 
setup and configuration.  For the latter, people should only need to 
know what it takes to make them work.  If you can ship something that 
works the way the user wants it to work, they don't need documentation 
any more than they need the source code (...the real documentation at 
that level). If you don't understand how these are intertwined, consider 
how almost any variable could be left in the source or extrapolated into 
a config file - and in the case of interpreted programs like perl or 
shell scripts the configuration may in fact be a piece of the software 
itself, sourced at runtime.  The 'one-size-fits-all' concept of the 
distribution RPMs doesn't quite work to provide configurations that 
'just work' for everyone, but a few dozen canned configs might cover 
most of the cases.


This is, of course, a different issue than 'how do I connect a form in 
openoffice to a table in postgresql?'.



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Re: (Off Topic ) Open Source: The Model Is Broken ??

2008-12-06 Thread Les Mikesell

M. Fioretti wrote:



Right. Now, who could write such good templates, ie distill without
errors those thousands of options and explain the result clearly, in
order to minimize misunderstandings, except the developers themselves
or (much better) some pretty good technical writer who's either paid
to do it or already financially secure?
None of the above.  Only a person who actually runs the program in  
production over a period of time will have a usable template


This is exactly what a responsible, professional tech writer does
before writing. Either he runs the sw himself or nags to death the
developers and testers to figure out what their notes and internal
docs mean.


Tech writers and developers often can't test in production scales 
themselves - and developers are way to optimistic about things.  I'd 
expect someone who actually keeps a large university mail system running 
to have a much more realistic config file than someone who only looks at 
the theory.



The problem is that he [who has a usable template] has no way to
share his work with the thousands of other people who could use
exactly the same setup


This is false. All that person should do is publish online one page
with that template and a few clearly written explanations of its
content. 


That's equally true for source code, but we don't expect users to build 
their systems from scratch by gathering up source code page by page from 
random users they don't know in random, distributed places, do we?



It's writing the clear explanation which is hard, which is a
good part of why those templates don't pop up every day.


Explanations are mostly irrelevant if you it works like an appliance. If 
you need details you can go to the source.



Who could fix it?  What we need is a location and mechanism for
admins to share their config files with similar tools that code
developers have to maintain versions/branches etc., and view diffs
across them.


Les, I have made one general comment about how difficult it is to
write good documentation on whatever subject, never mind Fedora. Now
you are talking of something which has nothing to do with the topic I
suggested. The fact that I used a Postfix example doesn't mean that
the good docs problem is only for initial configuration, I thought
that was clear, sorry.


Postfix is a perfect example. Very few people should ever need to know 
any config options for mail systems.  They just need one installed that 
works in one of some small number of siturations.



Having a config files repository would be absolutely useless for a
newbie user of, say OpenOffice or Kde.


Agreed - there is a big difference in end user run-time operation and 
administrivia.  But they aren't treated differently in the 
distributions, which contributes to the reputation of open source 
documentation that started this topic.


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Re: script help

2008-12-01 Thread Les Mikesell

adrian kok wrote:

Hi

I have script to remove files but it can't work in
directory


ls *log | sort -r | sed -e 1,1d | xargs rm -f

those folders are:

Nov28-log
Nov29-log
Nov30-log


By 'folders', do you mean that these are directories?  You need to 'rm 
-rf' directories to remove the with their contents, or you can 'rmdir' 
if they are empty.


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Re: Quest8ion about what backup util to use.

2008-11-26 Thread Les Mikesell

Steven W. Orr wrote:
I have a dirt simple backup scheme. I have a list of directories that 
I back up and they all get copied to a disk that was put in just for 
that purpose. I used to use something called flexbackup, but it 
occasionally had problems and it hasn't been supported in years.


I'd like to give it a conf file and have a full backup run of those 
dirs once a month and then have incrementals done on a daily basis. 
The resulting files should be somehow compressed and easy to access 
when needed.


(I go on the presumption that you only need your backup if you don't 
make it.)


Is there a favored util that will do what I want?


Backuppc is close.  It is really intended to back up multiple machines 
over a network with a web interface to browse and restore, but it will 
work locally and you can mount your extra disk in it's archive location.


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Re: Erase cache, clean registry in Linux

2008-11-25 Thread Les Mikesell

Michael Schwendt wrote:

On Tue, 25 Nov 2008 08:45:39 -0600, Seann Clark wrote:


Manuel Gomez wrote:

Hi, i would like to know a tool or software to erase the cache, clean
the registry...

Somebody could help me?

Thank you very much, I appreciate your help.



  
AFAIK, Fedora doesn't have a registry. Closest thing is the filesystem 
journal, and Inodes.


Not entirely right if you consider things like the GConf database and
the RPM database.


And worse, the dotfiles in home directories that may have 
version-specific attributes that relate to the program versions you ran 
last.


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Re: Network Card Naming Issue

2008-11-21 Thread Les Mikesell

Bill Davidsen wrote:


Actually, no. The method is to use UUID and totally ignore hardware 
names. That's what current /etc/fstab and /etc/mdadm.conf do these days.


Right now, the key hardware components are remembered by udev.  As 
this new method matures, it will become easier to maintain/remove 
hardware.  But think of the alternative!  The old way might be ok for 
single drive, single interface systems, but not otherwise.


There are many of us who remember the 'bad old days' when this issue 
was capable of destroying months of work!


The hal stuff was written by people who were wedded to matching the same 
device to the same name. Putting MAC address, UUID, or serial number in 
as the key is far more reliable, and allows people to to have a single 
place to specify the match. Having to beat up sysconfig and hal to 
change a failed device is not conducive to good system administration.


Your points are well taken, but I consider hal keeping it's own ideas 
instead of using sysconfig to be a bug, not a feature.


You do need to be able to move parts around as well as replace old parts 
in an existing system.  And you need to be able to do image copies of 
drives.  What happens if you put disks with duplicate labels (for years 
they wouldn't boot...) or uuids into the same machine?   What if you put 
disks that previously used to be the same-numbered md? device from 2 
different machines into the same box?  It has been a while since I tried 
that, but it wasn't pretty.


What if you want to replace your current eth0 with a different card and 
shift the use of the existing one to a different subnet?


And all of this gets in the way when you need to restore your backups 
onto a similar but different box.


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Re: Network Card Naming Issue

2008-11-21 Thread Les Mikesell

Bill Davidsen wrote:




Your points are well taken, but I consider hal keeping it's own ideas 
instead of using sysconfig to be a bug, not a feature.


You do need to be able to move parts around as well as replace old 
parts in an existing system.  And you need to be able to do image 
copies of drives.  What happens if you put disks with duplicate labels 
(for years they wouldn't boot...) or uuids into the same machine?   
What if you put disks that previously used to be the same-numbered md? 
device from 2 different machines into the same box?  It has been a 
while since I tried that, but it wasn't pretty.



The md device number seems not to be an issue.


If I put it 2 sets of drives that used to be md2 in former machines, 
which set will become md2 and what happens to the other one?


Using a non-unique UUID 
on a system is the same level as swapping two hard drives and using the 
physical device name to determine how they're used, if you make an 
effort to shoot yourself in the foot you will wind up with a hole in 
your shoe. Deliberately creating a condition where the information used 
to tell hardware apart is ambiguous is dubious practice at best.


Making a unix-like system that can't deal with dd-copied disks is 
shooting everyone in both feet.


What if you want to replace your current eth0 with a different card 
and shift the use of the existing one to a different subnet?


Have the info in one place, sysconfig, not sysconfig and hal keeping 
their own idea of reality. Being able to set this in one place is good, 
assuming that two places will always match is unrealistic. People screw 
up, restores happen, one place is right or wrong, but never maybe.


And all of this gets in the way when you need to restore your backups 
onto a similar but different box.


If you make physical backups of drives that is the least of the 
problems.


The disk part will work as long as the replacement motherboard has the 
same controller type - and you don't put 2 copies of the same disk in it 
at once.  But your network won't come up, so it's no fun when you have 
someone replacing stuff remotely and you expect it access it again.


The UUID isn't backed up using by-file backup, so conventional 
backups by tape or rsync aren't a problem.


You always have a problem, you are just moving it around.  Now you have 
a machine that won't boot, and if it did boot, would have fstab entries 
pointing at uuids or labels that don't exist.


Finding that two drive made a 
few months apart, with the same part number, are actually slightly in 
size is painful reality, the only things I backup with a physical backup 
are VM images, and usually not those either.


The problem of mismatched identifiers is always going to exist, 
depending on which part you swap, and the motherboard, nics, conrollers, 
and disks are all equally candidates.  We just need something besides 
andaconda that knows how to glue the pieces together.


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Re: Make a DHCP server using Fedora - Help

2008-11-19 Thread Les Mikesell

Antonio Olivares wrote:


No, there is DNS, and they are the same as the host machine.  It might be 
another little thing, maybe the packet forwarding or Iptables stuff?

Thank you very much for your guidance :)
It is much closer than before.



You have to deal with routing and NAT somewhere.  You might avoid it if 
you run a nameserver and squid proxy on the host and configure the 
clients to use the proxy.  Otherwise you need the host to route the 
packets if you have a NAT gateway elsewhere, or to route and NAT if 
nothing but the host knows about this subnet.


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Re: Make a DHCP server using Fedora - Help

2008-11-19 Thread Les Mikesell

Antonio Olivares wrote:


BTW,

I am getting DHCP requests from other machines in the school network :(
I only want the network for my own machines in the classroom not the others.  Here's what I am getting 

Nov 19 07:14:27 localhost dhcpd: DHCPDISCOVER from 00:50:2c:a2:23:28 via eth0: network 10.154.19.0/24: no free leases   
Nov 19 07:14:27 localhost dhcpd: DHCPREQUEST for 10.154.19.248 (10.154.16.130) from 00:50:2c:a2:23:28 via eth0: unknown lease 10.154.19.248.
Nov 19 07:18:50 localhost ntpd[2082]: synchronized to 72.249.76.84, stratum 2   
Nov 19 07:24:25 localhost dhcpd: DHCPREQUEST for 10.154.19.94 from 00:40:f4:ea:ee:d3 via eth0: unknown lease 10.154.19.94.  
Nov 19 07:25:34 localhost dhcpd: DHCPINFORM from 10.154.19.94 via eth0  
Nov 19 07:25:34 localhost dhcpd: DHCPACK to 10.154.19.94 (00:40:f4:ea:ee:d3) via eth0   
Nov 19 07:25:37 localhost dhcpd: DHCPINFORM from 10.154.19.94 via eth0  
Nov 19 07:25:37 localhost dhcpd: DHCPACK to 10.154.19.94 (00:40:f4:ea:ee:d3) via eth0   
Nov 19 07:26:51 localhost dhcpd: DHCPREQUEST for 10.154.19.133 from 00:0c:f1:76:fc:68 via eth0: unknown lease 10.154.19.133.
Nov 19 07:27:25 localhost dhcpd: DHCPINFORM from 10.154.19.165 via eth0 
Nov 19 07:27:25 localhost dhcpd: DHCPACK to 10.154.19.165 (00:08:74:2e:70:e7) via eth0  
Nov 19 07:27:28 localhost dhcpd: DHCPINFORM from 10.154.19.165 via eth0 
Nov 19 07:27:28 localhost dhcpd: DHCPACK to 10.154.19.165 (00:08:74:2e:70:e7) via eth0  
Nov 19 07:30:08 localhost dhcpd: DHCPINFORM from 10.154.19.63 via eth0

Nov 19 07:30:08 localhost dhcpd: DHCPACK to 10.154.19.63 (00:12:3f:31:8d:b4) 
via eth0
Nov 19 07:30:11 localhost dhcpd: DHCPINFORM from 10.154.19.63 via eth0
Nov 19 07:30:11 localhost dhcpd: DHCPACK to 10.154.19.63 (00:12:3f:31:8d:b4) 
via eth0
Nov 19 07:32:38 localhost dhcpd: DHCPINFORM from 10.154.19.133 via eth0
Nov 19 07:32:38 localhost dhcpd: DHCPACK to 10.154.19.133 (00:0c:f1:76:fc:68) 
via eth0
Nov 19 07:33:57 localhost dhcpd: DHCPDISCOVER from 00:08:a1:0f:53:35 via eth0: 
network 10.154.19.0/24: no free leases
Nov 19 07:33:57 localhost dhcpd: DHCPREQUEST for 10.154.19.91 (10.154.16.130) 
from 00:08:a1:0f:53:35 via eth0: unknown lease 10.154.19.91.
Nov 19 07:34:13 localhost dhcpd: DHCPINFORM from 10.154.19.91 via eth0
Nov 19 07:34:13 localhost dhcpd: DHCPACK to 10.154.19.91 (00:08:a1:0f:53:35) 
via eth0
Nov 19 07:34:16 localhost dhcpd: DHCPINFORM from 10.154.19.91 via eth0
Nov 19 07:34:16 localhost dhcpd: DHCPACK to 10.154.19.91 (00:08:a1:0f:53:35) 
via eth0

Thank you very much again for helping out.  



Your client subnet should be physically isolated from rest of the 
building's network.  That is, the host should have one interface on the 
main net and another connected to a separate switch where your dhcp 
clients connect.  You will break the rest of the main network if you 
connect your dhcp-serving interface there.


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Re: Make a DHCP server using Fedora - Help

2008-11-19 Thread Les Mikesell

Antonio Olivares wrote:

--- On Wed, 11/19/08, Les Mikesell [EMAIL PROTECTED] wrote:


From: Les Mikesell [EMAIL PROTECTED]
Subject: Re: Make a DHCP server using Fedora - Help
To: [EMAIL PROTECTED], Community assistance, encouragement, and advice for using 
Fedora. fedora-list@redhat.com
Date: Wednesday, November 19, 2008, 5:55 AM
Antonio Olivares wrote:

No, there is DNS, and they are the same as the host

machine.  It might be another little thing, maybe the packet
forwarding or Iptables stuff?

Thank you very much for your guidance :)
It is much closer than before.


You have to deal with routing and NAT somewhere.  You might
avoid it if you run a nameserver and squid proxy on the host
and configure the clients to use the proxy.  Otherwise you
need the host to route the packets if you have a NAT gateway
elsewhere, or to route and NAT if nothing but the host knows
about this subnet.

--   Les Mikesell
   [EMAIL PROTECTED]


I added the following and saved them iptables-save


upon reading another page:
http://chwang.blogspot.com/2007/11/making-linux-fedora-core-8-as-gateway.html



The advice to add:
net.ipv4.ip_forward = 1
to /etc/sysctl.conf only takes effect after the next reboot.  If you 
want to change this on the fly you can:

echo 1  /proc/sys/net/ipv4/ip_forward

it says iptables and has this part: 


# Forward all packets from eth1 (internal network) to eth0 (the public internet)
iptables -A FORWARD -i eth1 -o eth0 -j ACCEPT
# Forward packets that are part of existing and related connections from eth0 
to eth1
iptables -A FORWARD -i eth0 -o eth1 -m state --state ESTABLISHED,RELATED -j 
ACCEPT
# Enable SNAT functionality on eth0. a.b.c.d are generally the ip of the eth0
iptables -A POSTROUTING -t nat -s 192.168.1.0/24 -o eth0 -j SNAT --to-source a.

I added everything here except last line Enable SNAT, I do not know what that 
means, I know it is close.  I can ping the host machine, it gets an ip, it gets DNS, and 
all, but cannot surf :(


Anywhere you send packets needs some way to get the response back to the 
sender.  One way to do this is to plan things so all of your private 
subnets are unique and add routes toward the gateway interfaces for 
everything else.  Another way is to NAT the source address as it goes 
out the already-known interface.  That way the rest of the world does 
not need to know about your new private subnet.  As a packet goes out, 
the source address of the client will be replaced with the address of 
the forwarding interface and the host performing this will maintain a 
table of connections to do the reverse mapping as the reply packets come 
back.  If you tcpdump your eth0 interface now, you'll probably see 
packets being forwarded out but nothing coming back because the rest of 
the net/world doesn't know the route back.  When you add the SNAT, it 
will look like the host machine itself to the rest of the world.  The 
argument to -s is the range of original addresses to replace, -o is the 
outbound interface, and --to-source is the IP of the outbound interface 
on the host.


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Re: set up NAT (network address translation) on local server

2008-11-19 Thread Les Mikesell

Antonio Olivares wrote:



--- On Wed, 11/19/08, Christopher K. Johnson [EMAIL PROTECTED] wrote:


From: Christopher K. Johnson [EMAIL PROTECTED]
Subject: Re: set up NAT (network address translation) on local server
To: Community assistance, encouragement, and advice for using Fedora. 
fedora-list@redhat.com
Date: Wednesday, November 19, 2008, 2:57 PM
What does this command produce? (shows whether your snat
rule is implemented correctly)
iptables -vnL -t nat

And this one? (tells if ip forwarding is on)
cat /proc/sys/net/ipv4/ip_forward

Chris

--   A society grows great when old men plant trees
whose shade they know
  they shall never sit in - Greek Proverb

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[EMAIL PROTECTED] ~]$ su -
Password:
[EMAIL PROTECTED] ~]# iptables -vnL -t nat
Chain PREROUTING (policy ACCEPT 0 packets, 0 bytes)
 pkts bytes target prot opt in out source   destination

Chain POSTROUTING (policy ACCEPT 0 packets, 0 bytes)
 pkts bytes target prot opt in out source   destination

Chain OUTPUT (policy ACCEPT 0 packets, 0 bytes)
 pkts bytes target prot opt in out source   destination
[EMAIL PROTECTED] ~]# cat /proc/sys/net/ipv4/ip_forward
1
[EMAIL PROTECTED] ~]#


Try
modprobe iptable_nat
iptables -A POSTROUTING -t nat -o eth0 -j MASQUERADE

and make sure the host itself can ping the targets you are trying.

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Re: any drawbacks to 64-bit versus 32-bit install?

2008-11-18 Thread Les Mikesell

Dave Feustel wrote:





Go with 64 bit.  I have gotten 3 machines with AMD64 processors and I have 
installed Fedora 10 Preview with 64 bit version and they are working nicely :)  
It(64 bit) will make full use of the machines capabilities and if it were not 
for the flash player and other proprietary stuff, 64 is the way to go :)

As pointed out in a separate thread, adobe has finally stared working on
and has an alpha version out of 64bit version of flash.  Check the
archives for the thread.  So that argument isn't relevant any longer?
If flash is important to you, I think it is until is is proven to be as  
reliable as the 32 bit version ;)


I have read that html 5 will make flash unnecessary. 


Is there any truth to that assertion?


It is supposed to include audio and video elements, but there's not much 
reason to expect all the parties involved to ever agree on a standard 
codec which leaves you pretty much in the same shape as needing flash.


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Re: [Fwd: Quota function]

2008-11-14 Thread Les
you need the admin password or the sudoers password to make this work.
If you set up the system yourself, you should have the admin password,
otherwise, contact the system administrator.

Regards,
Les H
On Fri, 2008-11-14 at 21:40 +0800, [EMAIL PROTECTED] wrote:
 Dear All,
 
 Would you mind to help about this problem ?
 
 Thanks !
 
 Edward.
 
  Original Message  
   Subject: 
 Quota function
  Date: 
 Wed, 05 Nov 2008 00:28:46 +0800
  From: 
 [EMAIL PROTECTED]
To: 
 [EMAIL PROTECTED]
 
 
 Dear All,
 
 Is there config sample for using Quota function ( cmd of quota and 
 edquota ) ?
 
 For user's bash_profile :
 
 PATH=$PATH:/sbin:/usr/sbin:/usr/local/bin
 
 For running with visudo :
 
 HOST = NOPASSWD:/usr/sbin/edquota, /usr/bin/quota
 
 For home directory :
 [EMAIL PROTECTED] ~]$ ls -l -h /home/aquota.*
 -rw-r--r-- 1 root root 10K Nov  4 23:32 /home/aquota.group
 -rw-r--r-- 1 root root 10K Nov  4 23:32 /home/aquota.user
 [EMAIL PROTECTED] ~]$
 
 BUT the result :
 
 [EMAIL PROTECTED] ~]$ sudo quota -v edward
 Password:
 
 [EMAIL PROTECTED] ~]$ sudo edquota -p qwe -u zxc
 Password:
 
 NEED password ???
 
 So, what misstake I had ?
 Many thank for your help !
 
 Edward.
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Re: Linux backup help

2008-11-10 Thread Les Mikesell

Frank Cox wrote:

On Mon, 10 Nov 2008 13:26:34 -0700
Kevin Kempter [EMAIL PROTECTED] wrote:

I'm awaiting a new linux laptop that will be my primary work machine. I want 
to implement a strategy that allows me as easily as possible to revert back 
to a former state. My primary concern is a scenario where I apply system 
updates and it breaks something that for me is critical.  


Have you looked at this?  (I've never used it myself, yet,  but it looks
interesting.)

http://www.mondorescue.org/


Clonezilla-live would be good for this if you have space on a networked 
machine to hold a compressed disk image.


http://clonezilla.org/clonezilla-live/

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Re: Linux backup help

2008-11-10 Thread Les Mikesell

bruce wrote:

hi les/guys...

assume you had/have a usb/external drive that was connected to the laptop.
assume that it was also the same size (2.5) as the laptop drive... couldn't
you set up a process to do a complete rsync/backup every x hours of
everything on the drive in use.


Well, yes, but one of the reasons you make backups is to cover the case 
where you meant to type 'rm -rf something*' when you are in the root 
directory and accidentally type 'rm -rf something *' instead.  Or a 
software bug that does something like that.



this would give a complete, always available backup that would always be
right at your arms ready!!!


Yes - but it would be even better if you rotated 2 such disks - or ran 
over the network to another box.



ok.. so what would be needed to accomplish this!!


You can either do the obvious script that rsync's each partition and let 
cron run it, or look up one of the packages that keeps some history, 
like rdiff-backup.


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