Linux-Misc Digest #864, Volume #20 Wed, 30 Jun 99 17:13:08 EDT
Contents:
Re: Meaning of word ,,hacker'' (Stewart Honsberger)
"Clean" Disk Image (Joshua Grauman)
Re: Non .rpm install help (Larry)
Please help with FTP Server problem (Brian)
Re: Celeron Compatibility (Mike Frisch)
Re: Linux loses in NT tests (Alex Lam)
Re: Documentation issues. (vepxistqaosani)
FWD-NT/IIS vs. Linux/Apache test from Germany. (Alex Lam)
Re: Auto responding procmail (DB)
Re: Memory hogging, and dpms (Mookie D.)
Re: Voodoo 2 & Quake 2 Tuneup (Peter Wilkes)
Re: Documentation issues. (Peter da Silva)
Gcc/Assembler Dumps Core (John Garrison)
Re: Best sound card for use w/ Linux? (David Fox)
----------------------------------------------------------------------------
From: [EMAIL PROTECTED] (Stewart Honsberger)
Subject: Re: Meaning of word ,,hacker''
Reply-To: [EMAIL PROTECTED]
Date: Wed, 30 Jun 1999 18:37:38 GMT
On 30 Jun 1999 14:12:23 GMT, Arkadiusz Danilecki wrote:
> In pl.comp.os.linux recently we have got discussion about meaning of
>the word hacker. There were two different opinions:
"Hacker" used to mean, in it's most basic sense, a programmer. "Hacking"
at the guts of computers et al.
Lately, the word has been (rather inappropriately) applied to "crackers"
(people who breech security in order to cause harm and/or damage, or to
break the law). Hackers live by a "look but don't touch" rule - hackers
being people who can and will break into systems, but won't DO anything.
Many hackers will break into systems, send the admin a note letting them
know they're in (send a directory listing of their /root directory, for
instance), and either offer to fix the problem, or offer to fix the problem
for a nominal fee. (Depending on the severity of the problem and the nature
of the system - that fee could be quite hefty).
Banks and other large firms will often hire hackers to break into their
systems and point out/fix security risks.
Next time you hear an english speaking person refer to a cracker as a
hacker - be sure to correct them. (If the person is a brainded lUser,
don't be afraid to be harsh and holier-than-thou when you do it :> ).
--
Stewart Honsberger (AKA Blackdeath) @ http://sprk.com/blackdeath/
[EMAIL PROTECTED] (Remove 'thirteen' to reply privately)
Humming along under SuSE Linux 6.0 / OS/2 Warp 4
------------------------------
From: Joshua Grauman <[EMAIL PROTECTED]>
Subject: "Clean" Disk Image
Date: Wed, 30 Jun 1999 11:59:16 -0700
I have two identical SCSI drives under Linux, and would like to make a
disk image
from one to the other. I know I can use dd if=/dev/sda of=/dev/sdb but
if I do
this, the file system isn't shut down properly and the backup gives
errors on boot
and I imagine could possibly not work correctly if someone was writting
to
/dev/sda while dd was running. What would be a good way to do a "clean"
disk
image? I want to have it done by cron, so that eliminates manually
booting off a boot disk to do the copy. Any ideas would be appreciated.
Thanks.
Joshua Grauman
[EMAIL PROTECTED]
------------------------------
From: [EMAIL PROTECTED] (Larry)
Subject: Re: Non .rpm install help
Date: 30 Jun 1999 13:54:35 -0600
On Wed, 30 Jun 1999 04:18:10 GMT, [EMAIL PROTECTED] <[EMAIL PROTECTED]>
wrote:
>Hey,
>
>I believe I might know what is going on, but I still need some help.
>When I installed Linux originally (only a week or so ago) I only
>installed the packages necessary for Linux to function. I did not
>install any developer packages, webserver packages, NFS stuff, etc.
>Could this be the reason I am getting these errors? Should I have
>installed one of those developer packages? If so, which one?
>
>If anyone out there could help me, I would appreciate it, tremendously!
>Thanks in advance.
Yep.
All of 'em. The reason I say that is because in the future, when you go to
building packages from source, you are going to find that you will run
across every form of developement software that Linux uses. I don't know
that much about Redhat but I would assume they wouldn't include a bunch of
useless packages that you were never going to need.
You will need;
Gcc, G++, perl, tcl, and so on. Of course you don't need the webserver
stuff unless you're going to run a web page.
------------------------------
From: [EMAIL PROTECTED] (Brian)
Crossposted-To:
comp.os.linux.help,comp.os.linux.questions,alt.linux,alt.os.linux,comp.os.linux,setup
Subject: Please help with FTP Server problem
Date: Wed, 30 Jun 1999 18:11:54 GMT
Reply-To: [EMAIL PROTECTED]
============================================================================================================
I'm sorry about the crosspost. I originally posted this in
comp.os.linux.help & .questions, but have yet to receive a response.
=============================================================================================================
I finally became fed up with WU-FTP Server, so I though I would try my
luck with ProFTPD. I downloaded the program, read the literature, and
it looked like the perfect solution for an FTP server.
I followed the installation instructions to the letter: Run Config,
make, make install - and received no errors. I thought "This is too
easy" - I was right!!
I copied the basic.conf file over to usr/local/etc/proftpd.conf
(also to /usr/local/sbin/proftpd.conf - just to have my bases
covered).
I edited /etc/inetd.conf to remove the original ftp program, and
install the new one. The line I added:
ftp stream tcp nowait root /usr/local/sbin in.proftpd
(The path is correct)
I did a killall -HUP inetd
The first time I tried running the program, it complained about no
group called 'nogroup', so I created it.
Now - the program doesn't show up when I run 'ps'. And when a user
tries to connect, they get a message '421 Service not available,
remote server has closed connection".
The only assistance that the proFTP Docs give me is to check my log
files. Ok - I admit that I'm still a newby here - where do I find
them? I've looked in /var/logs, but nothing really jumps out at me.
Thanks in Advance!!
-Brian
------------------------------
From: [EMAIL PROTECTED] (Mike Frisch)
Subject: Re: Celeron Compatibility
Date: 30 Jun 1999 18:49:50 GMT
Reply-To: [EMAIL PROTECTED]
On 26 Jun 1999 00:58:25 GMT, Ron Gibson <[EMAIL PROTECTED]> wrote:
>Someone is telling me that Celeron CPU's have compatibility problems.
Someone is pulling your leg.
>Has anyone experienced any?
I've been running a Celeron 300A PPGA with 2.2.5 (from RedHat 6.0) for
weeks now and it's been rock solid stable. It easily passed the 100
kernel compiles test described in the SIG11 FAQ.
Mike.
------------------------------
From: Alex Lam <[EMAIL PROTECTED]>
Subject: Re: Linux loses in NT tests
Date: Wed, 30 Jun 1999 10:55:07 -0700
Silviu Minut wrote:
>
> > I might do a step by step installation record with RH, SuSE and
> > FreeBSD with my new box (I don't have the box yet, just ordered it,
> > it's a dual cpu, U2WSCSI box) if I have the time, and put out the
> > result somewhere.
> >
> > I'll download whatever is the latest from RH when my box comes.
> >
> > Alex Lam.
> >
>
> Don't download. Do yourself a favor and buy a $2 cd from cheapbytes or lsl or
> some other linux site. It will save you time and you'll have more chances to
> get it to install.
I might just buy the CD. But downloading is not bad, I have DSL at
home and T-1 at work. I've installed FreeBSD by FTP successfully - I
was restless, didn't want to wait for the shipment AFTER I ordered the
FreeBSD CD.
Alex Lam.
--
*remove all the Xs (upper case X) if reply by e mail.
** no more M$ Windoze.
------------------------------
From: vepxistqaosani <[EMAIL PROTECTED]>
Crossposted-To: gnu.misc.discuss,comp.unix.bsd.misc,comp.text.sgml,comp.text.xml
Subject: Re: Documentation issues.
Date: Wed, 30 Jun 1999 13:25:26 -0400
Peter da Silva wrote:
>
> Christopher B. Browne <[EMAIL PROTECTED]> wrote:
> >Supposing I want to change the document to have a "two column" form,
>
> Well, if the document is semantically marked up this is a style sheet issue,
> to be expressed on the command line or in some other out-of-band mechanism,
> and shouldn't require any changes in the document. If it does, then you're
> using a DTD that's confusing two semantic levels (content and layout). I
> agree that if you're using a broken DTD then you're screwed.
The problem is that a major change, as in the number of columns,
will be extremely unlikely to work cleanly. Take the case of
display mathematics: An equation that fits nicely in a 27-pica
column may well not fit at all in a 20-pica column -- and (despite
the efforts of Michael Downes at the AMS) there is no markup that
can intelligently rebreak multiline equations in such a way that
the rules of mathematical exposition are adhered to.
At the very least, one would have to litter one's sgml files with
multitudes of width-dependent processor directives -- and sgml is
ugly enough already.
In some cases, the layout _is_ the content (paging Marshall
McLuhan!).
Fred
------------------------------
From: Alex Lam <[EMAIL PROTECTED]>
Subject: FWD-NT/IIS vs. Linux/Apache test from Germany.
Date: Wed, 30 Jun 1999 09:15:27 -0700
================FWD====================
Posted 30/06/99 10:56am by John Lettice
Benchmark battles - now Linux beats NT
In the wake of the latest in the round of NT versus Linux face-offs
German magazine c't has published the results of its own tests of the
two operating systems. The c't tests, conducted by Jurgen Schmidt,
were intended to assess the two rivals in 'real life' situations of
the sort Linux is supposed to be good at.
Linux does a lot better than it has in the 'clash of armour'
benchmarks we've seen so far, and Schmidt makes a number of eminently
valid and sensible observations
concerning the real operation of Web servers. (Full c't report
http://www.heise.de/ct/english/99/13/186-1/ )
The tests pitted NT 4.0 and IIS against SuSE Linux 6.1 and Apache on
a quad
450MHz Xeon Siemens server with two gigs RAM, twin EtherPro 100 boards
and a
RAID system. One of the first 'real life' differences between the c't
and Mindcraft tests was the use of RAID-5 rather than RAID-0.
Mindcraft's use of the latter was aimed at performance, while c't went
for a more realistic performance/stability compromise.
Schmidt also comments on the nature of the Mindcraft test: "Unlike
for the Mindcraft
test, which required the server to produce its pages through four
100-MBit interfaces
we decided on a more realistic scenario. How many web servers actually
serve four of
these network interfaces? The majority of web servers make do with a
10-MBit
interface and even in intranet one 100-MBit board should be
sufficient. This was the
configuration we chose for our tests. To get an impression of maximum
load
behaviour anyway, we made the server prove it can handle two Fast
Ethernet connections."
For serving a static HTML page of 4-8k, the two came out roughly
even at 4k, with
Linux slightly ahead at 8k. Schmidt notes that both operating systems
didn't benefit to any great extent from use of multiple CPUs, although
the Linux installation was running kernel 2.2.9, which is better at
SMP than 2.2.5.
Linux did however performs substantially better in random requests
of 1,000,000 4k
files. With 512 requesters NT managed to answer 30 per second, and
Linux 274. In
another test using a CGI Perl script, Linux delivered twice as many
pages as NT on a
single CPU, and 2.5 times as many with four CPUs. This isn't entirely
surprising, as
IIS' support for Perl isn't great. NT did however shine when using
multiple network
boards, and Schmidt comments: "Linux's comparatively bad results when
tested with
two network boards show that Mindcraft's results are quite realistic.
NT and IIS are
clearly superior to their free competitors if you stick to their
rules."
In summary, he feels that "additional CPUs for plain web server
operation with static HTML pages are a waste. Even with two Fast
Ethernet lines there's only a moderate less than twenty percent
increase." The server wasn't needing to work to its full capacity, and
the tests were simulating conditions tougher than you'd expect in most
real life scenarios.
"In SMP mode, Linux still exhibited clear weaknesses. Kernel
developers, too, admit
freely that scalability problems still exist in SMP mode if the major
part of the load
comes through in kernel mode. However, if user mode tasks are involved
as well, as
is the case with CGI scripts, Linux can benefit from additional
processors, too. These
SMP problems are currently the target of massive developing efforts."
In the most relevant, practical areas, Linux and Apache "are already
ahead by at least a nose," while if the pages don't come directly from
main system memory, they're
more clearly ahead. c't was also impressed by the level of support it
got from the Linux community. Microsoft was slow to respond to
requests for information, while "Emails to the respective [Linux]
mailing lists even resulted in special kernel patches which
significantly increased performance. We have, on the other hand, never
heard of an NT support contract supplying NT kernels specially
designed for customer problems."
A very sensible report, and well worth reading in detail. �
--
*remove all the Xs (upper case X) if reply by e mail.
** no more M$ Windoze.
------------------------------
From: [EMAIL PROTECTED] (DB)
Subject: Re: Auto responding procmail
Date: 30 Jun 1999 16:49:59 GMT
Here's how I do it... in my rc.forward I have this:
:0c
* ^TO.*
*!^FROM_DAEMON
*!^X-Loop: [EMAIL PROTECTED]
|(formail -r -A "Precedence: normal" \
-I"From: Me" \
-I"Subject: Auto Reply" \
-A "X-Loop: [EMAIL PROTECTED]";\
cat $HOME/autorep.txt )|$SENDMAIL -t -oi
Of course, change "Me" and [EMAIL PROTECTED] and create the
autorep.txt in your home dir.
DB
Ben Short ([EMAIL PROTECTED]) wrote:
: Hi,
:
: I was wondering how to set up procmail to auto-respond to all incoming
: mail to a specified address, using the .procrc file?
:
: Unfortunately, trying to read what documentation I had was like a hole in
: the head, and I usually get more sensible answers from the newsgroup
: anyway *g*
:
: Cheers
: Ben
: --
: =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
: Ben Short http://www.shortboy.dhs.org
: Shortboy Productions mailto:[EMAIL PROTECTED]
:
: *Remove n0spam to email me*
: =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
------------------------------
From: Mookie D. <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux
Subject: Re: Memory hogging, and dpms
Date: Wed, 30 Jun 1999 18:57:59 GMT
In article <q0de3.263$[EMAIL PROTECTED]>,
[EMAIL PROTECTED] wrote:
>
> Linux is making optimal use of the memory resources, by having about
> 25MB of data cached, and by pushing 16MB of memory space that it
> hasn't touched lately out to swap, which leaves even more space free
> for cacheing.
Thanks for your explanation of this. What is the buffers memory being
used for? Is that reclaimed automatically also?
I've got a memory-intensive program I'm developing and need to
understand. Recently discovered vmstat as a good way to see when
thrashing starts, but could also use any tips people have on this.
Mook
Sent via Deja.com http://www.deja.com/
Share what you know. Learn what you don't.
------------------------------
From: Peter Wilkes <[EMAIL PROTECTED]>
Crossposted-To: 3dfx.glide.linux,alt.linux,ch.comp.os.linux,linux.redhat
Subject: Re: Voodoo 2 & Quake 2 Tuneup
Date: Wed, 30 Jun 1999 13:30:05 -0400
Al Kooz wrote:
>
> Hi everyone,
> I set up Quake 2 recently on my RH 6.0, and I used my Windows graphics
> tuneup config file (attached).
> I have a PI 266 MMX and I get 45 fps under win98, whereas I only get 35
> under linux in the console. I'm unsure about which settings I can still use
> under linux and which I can't and if there's any others that I should know.
> Please help me.
>
> How can I improve my quake 2 performance ????
Although it is my beleif you posted this message to the wrong
newsgroups as an avid quake player i will anser the best i can.
find any web site on the web dealing with console commands and and any
performance commands to your autoexec.cfg file in your id1 directory.
some commands i can remember are the
wateralpha
r_ambient
good luck
Pete
------------------------------
From: [EMAIL PROTECTED] (Peter da Silva)
Crossposted-To: gnu.misc.discuss,comp.unix.bsd.misc,comp.text.sgml,comp.text.xml
Subject: Re: Documentation issues.
Date: 30 Jun 1999 19:32:14 GMT
In article <[EMAIL PROTECTED]>,
vepxistqaosani <[EMAIL PROTECTED]> wrote:
>Peter da Silva wrote:
>> Christopher B. Browne <[EMAIL PROTECTED]> wrote:
>> >Supposing I want to change the document to have a "two column" form,
>> Well, if the document is semantically marked up this is a style sheet issue,
>> to be expressed on the command line or in some other out-of-band mechanism,
>> and shouldn't require any changes in the document. If it does, then you're
>> using a DTD that's confusing two semantic levels (content and layout). I
>> agree that if you're using a broken DTD then you're screwed.
>The problem is that a major change, as in the number of columns,
>will be extremely unlikely to work cleanly. Take the case of
>display mathematics: An equation that fits nicely in a 27-pica
>column may well not fit at all in a 20-pica column -- and (despite
>the efforts of Michael Downes at the AMS) there is no markup that
>can intelligently rebreak multiline equations in such a way that
>the rules of mathematical exposition are adhered to.
So what happens when you take a document like that and convert it to
plain text, or HTML? Rescaling the equation to fit in a 25% smaller
space is the least of your worries.
>In some cases, the layout _is_ the content (paging Marshall
>McLuhan!).
I've read McLuhan's book, the one with all the "smash your TV" exhortations
in BIG UGLY FONTS. He was obviously chanelling Wired through a retrograde
space-time infundibulum.
--
In hoc signo hack, Peter da Silva <[EMAIL PROTECTED]>
`-_-' Ar rug t� barr�g ar do mhact�re inniu?
'U` "Be vewy vewy quiet...I'm hunting Jedi." -- Darth Fudd
------------------------------
From: John Garrison <[EMAIL PROTECTED]>
Subject: Gcc/Assembler Dumps Core
Date: Wed, 30 Jun 1999 18:07:02 GMT
When trying to compile Basilisk II for Linux I have the following
error output during the mak
(or gmake) process:
c++ -I../include -I. -I../uae_cpu -DHAVE_CONFIG_H -DENABLE_DGA=1
-DENABLE_GTK=1 -DREGPARAM="__attribute__((regparm(3)))"
-DX86_ASSEMBLY
-D_REENTRANT -S -g -O2 -I/usr/X11R6/include -I/usr/X11R6/include
-I/usr/lib/glib/include -fomit-frame-pointer cpuemu.cpp -o cputmp.s
obj/cpuopti <cputmp.s >cpufast.s || mv cputmp.s cpufast.s
Corrupted assembly file!
rm -f cputmp.s
There is also a core dump that I assume is at this point because that
is the only problem I have.
BasiliskII is compiled and output but seg faults if I try to run it.
I am thinking maybe there is a problem with my assembler or somthing?
The fact that it core
dumps leads me to believe it is not a Basilisk Problem.
I am running Kernel 2.2.5 Glibc 2.1 on what was a RedHat 5.0
distribution before all the
upgrading. It is a 400mhz 98megs of ram AMD K-6 2 processor. (uh oh,
can AMD compile Intel
assembler?!)
Any help would be appreciated.
------------------------------
From: d s f o x @ c o g s c i . u c s d . e d u (David Fox)
Crossposted-To: comp.os.linux.hardware,alt.os.linux
Subject: Re: Best sound card for use w/ Linux?
Date: 30 Jun 1999 13:58:24 -0700
According to listening tests at
http://www.pcavtech.com/soundcards/summary/index.htm the SB Live has
only mediocre fidelity. Certainly not the best.
[EMAIL PROTECTED] writes:
> Creative is working on Linux support for their Live and 512 (among
> others). You might want to keep checking with them.
>
> P.S. The SB Live is the best .... we need to keep pressuring Creative
> to produce the drivers
>
> On 16 Jun 1999 19:10:00 -0700, d s f o x @ c o g s c i . u c s d . e d
> u (David Fox) wrote:
>
> >[EMAIL PROTECTED] (Donovan Rebbechi) writes:
> >
> >> On Wed, 16 Jun 1999 04:49:03 GMT, Gravot wrote:
> >> >prefaced with a "win"? I am especially curious about sound cards. Is
> >> >there any one card that is more suitable than the rest? If so, what is
> >> >the reasoning? Any favorites?
> >>
> >> Creative labs ISA cards are a snap to set up on linux. And you get to
> >> put a useless ISA slot to use (-;
> >
> >But they don't sound particularly good (music-wise) if that is
> >something you are concerned about.
--
David Fox http://hci.ucsd.edu/dsf xoF divaD
UCSD HCI Lab baL ICH DSCU
------------------------------
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End of Linux-Misc Digest
******************************
