Linux-Misc Digest #359, Volume #19 Mon, 8 Mar 99 00:13:08 EST
Contents:
Re: BEST HW For Linux NoteBook Project (Robert Billing)
Group renaming from uppercase to lowercase ("�ystein Gisn�s")
Linux Video Driver Question? ([EMAIL PROTECTED])
Re: More bad news for NT (Christopher B. Browne)
Re: so, how is gnome 1.0, guys? <troll> (Christopher B. Browne)
Re: chrony and hardware clock (Bill Unruh)
Re: Why did I have to use mkfs after fdisk ??????? (Jim Hill)
Re: suid (Paul Kimoto)
Re: Good dhcpcd FAQ? (brian moore)
Re: Caldera RPMs in RH? (Donovan Rebbechi)
How do I use dump with DOS/Win mounted partitions ("Robert C. Paulsen, Jr.")
Uh-oh, I've got kernel panic ([EMAIL PROTECTED])
Re: FreeBSD vs. Linux vs. Windows (Frank Crary)
ISP callback (Patrick Lanphier)
Re: GNOME ready for action? (David M. Cook)
Re: Linux certification (AbsuFan)
Re: Epson Stylus 640 : RH5.2 okay here ([EMAIL PROTECTED])
Re: sunsite.unc.edu servers (Robert McConnell)
Re: More bad news for NT (Michel)
Re: Running behind your back: Crontab defaults? ("David Z. Maze")
Re: No-Win Modem Situation (Robert Barnes)
----------------------------------------------------------------------------
From: Robert Billing <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.hardware,comp.os.linux.portable,uk.comp.os.linux
Subject: Re: BEST HW For Linux NoteBook Project
Date: Sun, 07 Mar 1999 23:13:17 +0000
Pete Jewell wrote:
> I'd actually like to pickup an aging 386 notebook to run Linux on -
> any suggestions from someone who's done such a thing as to what
> model/manufacturer to look out for/avoid?
These are often sold at auction by Thimbleby & Shoreland in Reading,
Berks, UK. Watch out for the RAM size though, some of them are *very*
small.
--
I am Robert Billing, Christian, inventor, traveller, cook and animal
lover, I live near 0:46W 51:22N. http://www.tnglwood.demon.co.uk/
"Bother," said Pooh, "Eeyore, ready two photon torpedoes and lock
phasers on the Heffalump, Piglet, meet me in transporter room three"
------------------------------
From: "�ystein Gisn�s" <[EMAIL PROTECTED]>
Subject: Group renaming from uppercase to lowercase
Date: Mon, 8 Mar 1999 02:26:56 +0100
Is there a smart (or stupid) way to rename all the files in a directory, or
better in subdirectories, from uppercase to lowercase?
------------------------------
From: [EMAIL PROTECTED]
Crossposted-To: comp.os.linux.questions,comp.os.linux.setup
Subject: Linux Video Driver Question?
Date: Mon, 08 Mar 1999 04:04:04 GMT
I was looking at the Video - Hardware Compatibility list for Linux and
noticed that all the ATI cards are supported by Mach8, Mach32, and
Mach64 drivers.
The funny thing is that some cards such as the All-in-Wonder Pro is a
Rage Pro Turbo Chip, but is driven by the Mach64 driver.
Is the Rage Pro Turbo chip realy a Mach64 chip?
Or is linux using some sort of compatibility driver that runs both?
Is Linux getting the best performance out of the chip that is
possible?
Does this mean that if I were to buy the latest ATI Rage Fury card
that has a Rage 128 chip,
that I could use the Mach64 driver?
Ian
[EMAIL PROTECTED]
------------------------------
From: [EMAIL PROTECTED] (Christopher B. Browne)
Crossposted-To: alt.destroy.microsoft,comp.os.linux.advocacy,alt.linux
Subject: Re: More bad news for NT
Reply-To: [EMAIL PROTECTED]
Date: Mon, 08 Mar 1999 04:17:35 GMT
On Sun, 07 Mar 1999 23:02:03 GMT, chris warner <[EMAIL PROTECTED]>
posted:
>The GUI was actually invented by Xerox in the early 60's. but they
>didn't have any machines that could drive the interface.
Xerox's efforts seem to have been a *bit* later than that; late '60s
and early '70s. Their classic problem has not been so much that of a
lack of hardware, but rather an inability to recognize that they have
some pretty key technologies that they might actually want to sell.
They're still doing "scary cutting edge" stuff to this day.
>So it was placed in a vault for someone to retrieve.
What has been "harvested" has largely been harvested by others.
But certainly the term "retrieve" is pretty suitable; some of the
things they developed were ahead of their time, not well supportable
by the technologies of the time. And as technology advances, things
from the past are sometime "retrieved" from former
uselessness/obsolescence, in the terms of the McLuhans' "Laws of
Media"...
--
Those who do not understand Unix are condemned to reinvent it, poorly.
-- Henry Spencer <http://www.hex.net/~cbbrowne/lsf.html>
[EMAIL PROTECTED] - "What have you contributed to free software today?..."
------------------------------
From: [EMAIL PROTECTED] (Christopher B. Browne)
Subject: Re: so, how is gnome 1.0, guys? <troll>
Reply-To: [EMAIL PROTECTED]
Date: Mon, 08 Mar 1999 04:17:37 GMT
On 8 Mar 1999 00:21:58 GMT, brian moore <[EMAIL PROTECTED]> posted:
>On Sun, 7 Mar 1999 21:30:22 +0000,
> Matthias Warkus <[EMAIL PROTECTED]> wrote:
>> It was the Sun, 07 Mar 1999 00:50:59 GMT...
>> ..and steve mcadams <[EMAIL PROTECTED]> wrote:
>> > Is it as good as you expected?
>>
>> After having tried Gnome 0.28, 0.30, 0.95 and 0.99.8.1, it really was
>> what I expected. Nice work.
>
>Actually, it's better than I expected, since I haven't played with GNOME
>in some time. (Was too much of a pain to keep up. :))
>
>I'm quite impressed (and it'll be really nice when the GTK-based
>Netscape hits the streets).
It'll be nice when it gets sufficiently "productionized" that it
doesn't take RPM contortions to get it installed. Whether that comes
from either:
a) Getting the overall system state somewhat decoupled from library
versions, or
b) Having an RPM equivalent to dselect, where package dependancies are
validated *before* you try to install 'em...
>> > Yeah I know, I could go to the gnome site and check it for myself, but
>> > having installed KDE it's not clear to me that I want a graphic-mode
>> > user interface enough to deal with that level of pain again.
>>
>> Try Gnome, you won't be deceived. The actual directory tree of Gnome
>> is smaller, too.
>
>You do get some silly games, too.
The "Free cell" is credible; I haven't yet lost to the Othello clone
at any level of play...
--
Those who do not understand Unix are condemned to reinvent it, poorly.
-- Henry Spencer <http://www.hex.net/~cbbrowne/lsf.html>
[EMAIL PROTECTED] - "What have you contributed to free software today?..."
------------------------------
From: [EMAIL PROTECTED] (Bill Unruh)
Subject: Re: chrony and hardware clock
Date: 8 Mar 1999 04:19:11 GMT
In <[EMAIL PROTECTED]> Stef <[EMAIL PROTECTED]> writes:
>OK, yesterday I installed chrony 1.02 on my Debian 2.0 system. I did
>not change the system clock. It was one hour behind, since windows 95
>messed around with the hardware clock. I stopped my ppp connection,
>but let the machine run overnight. Now the system time is only about
>15 minutes behind. Good.
>But the hardware clock is still one hour (plus an additional one
>because it is kept in UTC) behind.
>Do I have to tell chrony to explicitly set the hardware clock?
Yes.
>What if I shut down my machine now, an restart it? Will the system
>time be read from the hardware clock an be behind one hour again?
No. chronyd looks at the RTC and compares it with the real time from the
net, and looks at the rate at which the RTS runs and when it reboots, it
uses the last difference between real time and the RTC and the rate at
which the RTC runs and corrects for both the offset and rate error.
That is what is really really neat about chrony.
------------------------------
From: [EMAIL PROTECTED] (Jim Hill)
Subject: Re: Why did I have to use mkfs after fdisk ???????
Date: 8 Mar 1999 04:13:59 GMT
Reply-To: [EMAIL PROTECTED]
In <[EMAIL PROTECTED]>,
Paul Johnson <[EMAIL PROTECTED]> wrote:
>
>I just installed a big HD (12.4Gb) on my P100 linux system. I formatted a
>large primary ext2 partition using fdisk,
No, you didn't. fdisk manipulates the partition table. mkfs creates a
filesystem on the partitions that fdisk creates.
>1) why has fdisk worked for me in the past but not this time?
Probably because you were running a full-up Linux installer which ran
mkfs "behind the scenes" after you were finished with fdisk.
>2) Why did I have to use mkfs?
See above.
>3) what is mkfs doing for 30 minutes that fdisk doesn't do?
Laying down a filesystem...and if it took half an hour then you probably
ran the command with the flag to check the disk for bad blocks.
As a side note, mkfs reserves by default 5% of the partition for root's
use; on a 12.4 GB partition that is excessive. You can reduce this via
the tune2fs command (see the man page).
Jim
--
[EMAIL PROTECTED] http://www.swcp.com/~jimhill/
"Visualize world peace...good.
Now wake up and smell the coffee."
------------------------------
From: [EMAIL PROTECTED] (Paul Kimoto)
Crossposted-To: comp.lang.perl.misc
Subject: Re: suid
Date: 7 Mar 1999 23:20:30 -0500
Reply-To: [EMAIL PROTECTED]
In article <[EMAIL PROTECTED]>,
Homer Wilson Smith wrote:
> proggy.c
> proggy* which is set uid root chmod 4710
> proggy.pl
>
> proggy.c calls proggy.pl and is compiled into proggy*
>
> Proggy.pl contains the usual lines necessary for secure
> running of suid scripts. It also contains.
>
> system ("cp file1 file2");
>
> This works fine.
Here the argument contains no shell metacharacters, and so is split into
words and passed to execvp(3).
> However
> system ("id && cp file1 file2");
> system ("id ; cp file1 file2");
Here the argument contains shell metacharacters, so is passed to
"/bin/sh -c" (see "perldoc -f exec").
Now, the man page for bash(1) (assuming, as usual, that it's the
Linux /bin/sh) says
bash> If the shell is started with the effective user (group) id
bash> not equal to the real user (group) id, and the -p option
bash> is not supplied, no startup files are read, shell func-
bash> tions are not inherited from the environment, the SHEL-
bash> LOPTS variable, if it appears in the environment, is
bash> ignored, and the effective user id is set to the real user
bash> id. If the -p option is supplied at invocation, the
bash> startup behavior is the same, but the effective user id is
bash> not reset.
There's your problem: bash is resetting euid to the real uid.
--
Paul Kimoto <[EMAIL PROTECTED]>
------------------------------
From: [EMAIL PROTECTED] (brian moore)
Crossposted-To: alt.os.linux.slackware,comp.os.linux.networking
Subject: Re: Good dhcpcd FAQ?
Date: 8 Mar 1999 04:23:51 GMT
On Mon, 08 Mar 1999 01:18:40 GMT,
A.G. <[EMAIL PROTECTED]> wrote:
> Could anyone point me in the direction of the subj.?
(from memory)
http://metalab.unc.edu/pub/Linux/docs/HOWTO/mini/DHCP
--
Brian Moore | "The Zen nature of a spammer resembles
Sysadmin, C/Perl Hacker | a cockroach, except that the cockroach
Usenet Vandal | is higher up on the evolutionary chain."
Netscum, Bane of Elves. Peter Olson, Delphi Postmaster
------------------------------
From: [EMAIL PROTECTED] (Donovan Rebbechi)
Crossposted-To: comp.os.linux,comp.os.linux.setup
Subject: Re: Caldera RPMs in RH?
Date: 7 Mar 1999 18:58:48 GMT
On Wed, 3 Mar 1999 09:32:58 -0600, Aaron Dershem wrote:
>Can I install Caldera RPMs in Red Hat 5.2? I want to add netatalk, but RH
>doesn't supply a package.
first, check http://rufus.w3.org/
and see if you can find any glibc RPMs there.
> Caldera does, but I'm not sure if it will work
>correctly.
Might or might not work. I would recompile it. Get the src.rpm package, install
it
rpm -i foo.src.rpm
then cd to /usr/src/redhat/SPECS
and go
rpm -bb foo.spec
you need to have the right compile time libs installed to do this
( glibc-devel , *-devel ... )
--
Donovan Rebbechi <[EMAIL PROTECTED]>
http://pegasus.rutgers.edu/~elflord/
http://www.independence.seul.org/
------------------------------
From: "Robert C. Paulsen, Jr." <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.setup
Subject: How do I use dump with DOS/Win mounted partitions
Date: Sat, 06 Mar 1999 23:09:45 -0600
Hello,
I would like to backup some data from a DOS/Win mounted partition. By
this I mean a partition on the same system mounted with the mount
command, for example:
mount /dev/sda1 /Windows
(I don't mean smbmount.)
I tried to use dump to do this, but no data gets written. Here are the
results of two tries...
mount /backup
dump Bbuf 4096000 1 /backup /backup/drv_c /dev/sda1
DUMP: Date of this level 0 dump: Sat Mar 6 23:03:39 1999
DUMP: Date of last level 0 dump: the epoch
DUMP: Dumping /dev/sda1 (/drv/c) to /backup/drv_c
/dev/sda1: Bad magic number in super-block while opening filesystem
dump Bbuf 4096000 1 /backup /backup/drv_c /dev/sda1/
DUMP: Date of this level 0 dump: Sat Mar 6 23:03:52 1999
DUMP: Date of last level 0 dump: the epoch
DUMP: Dumping /dev/sdb1 (/) to /backup/drv_c
DUMP: mapping (Pass I) [regular files]
/dev/sdb1: Ext2 inode is not a directory while mapping files in
dev/sda1/
--
Robert Paulsen http://paulsen.home.texas.net
If my return address contains "ZAP." please remove it. Sorry for the
inconvenience but the unsolicited email is getting out of control.
------------------------------
From: [EMAIL PROTECTED]
Subject: Uh-oh, I've got kernel panic
Date: Mon, 08 Mar 1999 04:02:36 GMT
I am running out of space on my Linux partition, so I shrunk my windows
partition in order to make more space. I then ran fdisk in Linux, and made a
partition out of the free space. When I rebooted, no problem. So (stupid
me) I decide that, while I am making a new partition, I might as well add a
little more swap space too. So in cfdisk, I deleted the partition I just
made, and replaced it with two partitions, one Linux native and one Linux
swap. I thought I would be all right, because, as far as I know, I didn't
touch my previous Linux partition. Besides, it had worked before. But upon
reboot, Lilo seemed to work, but when mounting the root filesystem, I got
kernel panic.
Now, I realize that I may have screwed everything on my Linux partition, but I
would rather recover it, if possible. Any help?
My questions, then:
1. How can I repair the damage I've done/at least boot my old Linux partition?
2. How do I format the Linux native/Linux swap partitions?
3. How do I get Lilo to recognize the new partitions?
4. How do I get Linux to mount the new partitions automatically?
5. Are there any other things that I'm missing?
Plus, a question that I should have asked first: How do I make a backup of my
/home directory?
Oh, well . . . I figured that the best way to learn was just to try it.
Thanks!
VanL (reply to [EMAIL PROTECTED] or post)
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------------------------------
From: [EMAIL PROTECTED] (Frank Crary)
Crossposted-To: comp.unix.bsd.freebsd.misc
Subject: Re: FreeBSD vs. Linux vs. Windows
Date: 8 Mar 1999 04:39:21 GMT
In article <[EMAIL PROTECTED]>,
Donn Miller <[EMAIL PROTECTED]> wrote:
>I don't know which is better, FreeBSD or Linux, but I think we can all
>agree that these two collectively kick Windows' ass. Here are the areas
>in which FBSD & Linux are better than Windows:
>...
>* Multitasking -- Windows 98 multitasking is still a joke.
I think multiple users is equally important. Last time I checked,
Windows (95, 98 or NT) doesn't allow more than one user to be on
the machine at a time, and support for remote access is between
poor and non-existent. On my FreeBSD box at work, I have one
user on from console more or less constantly, one or two
who log on remotely and start running few-hour run time processes
in the background, then log out, and myself pulling up windows
and running processes from another machine. Even so, we aren't
using 100% of the CPU time, 24 hours a day, seven days a week,
although we often come close. If we could only have one user
on at a time, we couldn't even get close to using 100% of the
available CPU time, and that means we would not get getting anything
close to the computational power we paid for.
>Here are some areas in which Windows is still better than FBSD and
>Linux:
>* better books on programming, systems programming, etc. I don't think
>there's any books out there on specifically programming for FreeBSD
>(although Stevens' book might be close).
That's the great thing about unix, especially BSD-based unix. To a
very large extent, things like programming and the user environment
are not operating system specific. The O'Rielly books aren't
specifically about FreeBSD, but their book on computer security
is largely applicable; their books on sed and awk, csh and tcsh,
etc. are completely applicable. Books on 4.* BSD unix apply to
FreeBSD for the most part. Since FreeBSD and Linux are similar
to unix operating systems in general, you don't need lots and
lots of books specifically about FreeBSD or Linux. (This is more
true of FreeBSD when it comes to system administration details,
since it is BSD version 4.4 unix, while Linux is neither BSD nor
System V unix, and can't rely on general BSD or System V documentation
as much.)
>* Microsoft Office is less bloated than Star Office.
And I care for what reason? Seriously, this is a very use-specific
issue. I do computational physics for a living; I and my users
have other machines available if we need something like Microsoft
Office (although we use Macs and an SGI, rather than a machine
running Windows.) The difference between MS Office and Star Office
is of absolutely no importance to us, since we have no need of either.
The same is true of anyone using a PC as a server. So your point
is a problem for certain uses, rather than a general difference
between Windows and the various PC implementations of unix.
Frank Crary
CU Boulder
------------------------------
From: Patrick Lanphier <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.networking
Subject: ISP callback
Date: Mon, 08 Mar 1999 04:43:12 +0000
I would like to be able to call a computer with my computer or over a voice phone and
request that
it dial it's ISP, do any of you know of an easy way of accomplishing this task?
Patrick Lanphier
Advanced Information Technologies
The Pennsylvania State University
------------------------------
From: [EMAIL PROTECTED] (David M. Cook)
Subject: Re: GNOME ready for action?
Date: Mon, 08 Mar 1999 04:48:25 GMT
On Sun, 7 Mar 1999 13:49:16 -0700, Keith Davey
<[EMAIL PROTECTED]> wrote:
>which would indicate to me that the authors seem to think they have it ready
>from prime-time. What is the opinion of any users of this version of GNOME.
It's reasonably stable now. However, I wouldn't use it with Enlightenment.
WindowMaker works if you configure it with --enable-gnome.
Dave Cook
------------------------------
From: [EMAIL PROTECTED] (AbsuFan)
Subject: Re: Linux certification
Date: Mon, 08 Mar 1999 05:01:41 GMT
On 07 Mar 1999 10:23:17 -0500, Tom Ed White <[EMAIL PROTECTED]> wrote:
>I'm considering forking out $$$$ for Linux certification. I'm considering
>the Red Hat program. I would like to work in a Linux based environment.
>
I too am considering this program. I think the cost is high, but how
else can a company know that you really know what you are talking
about? The person who needs you to do a job for them usually is not
proficient in grading your knowledge prior to hiring you either. It's
usually only afterward that they can tell if you know what your
talking about.
I think that a Unix/Linux Certification would be a great thing, and I
would be willing to pay to attend such a course. Mainly because I do
not have the time to read any of the many Linux manuals. I need to be
able to pay someone to spend the time to teach me how to use it. Then
I will never forget the info, and plus, my employer will pay for half
of it and give me the time off to go attend this class. I can lose
for winning. If anyone one knows of any other courses, please let me
know. I'd be interested in them.
AbsuFan
>The thing is, everything I know is self taught, maybe not so good for a
>resume. OTOH, I think maybe I could get work just through networking (the
>people kind) without having to fork out copious amount of cash. I'm already
>getting occasional phone calls from MCSE type wanting help on installation.
>
>Any thoughts, biases, rants sincerely appreciated.
>
>Thanks,
>Tom Ed White
------------------------------
From: [EMAIL PROTECTED]
Subject: Re: Epson Stylus 640 : RH5.2 okay here
Date: Mon, 08 Mar 1999 04:42:55 GMT
In article <7btvra$d06$[EMAIL PROTECTED]>,
r d t@c s.q u e e n s u.c a (Bob Tennent) wrote:
> On Sun, 07 Mar 1999 05:46:51 GMT, [EMAIL PROTECTED] wrote:
> >In article <7bhavf$m94$[EMAIL PROTECTED]>,
> > r d t@c s.q u e e n s u.c a (Bob Tennent) wrote:
> >> On Tue, 02 Mar 1999 10:01:53 -0500, Jeff Letendre wrote:
> >> >Anyone know where I can get a linux driver for a Stylus 640? The driver
> >> >that ships w/ Red Hat only has a resolution up to 360 dpi.
> >> >
> >> You need the uniprint driver in ghostscript. Install
> >> ghostscript 5.50, printtool-3.40 and rhs-printfilters-1.50.
> >>
> >Anyway, after installing the above packages (RPMS) this printer works great.
I
> >had to get the ghostscript-5.5.0 rpm from the aladdin site, and the other
> >packages from a rawhide mirror. also, I had to upgrade my libc and glibc.
> >
> >I use the Epson 600
> >driver from printtool, and am quite happy.
> >
> You might be even happier (1440x720dpi) if you used the uniprint
> driver. Unless it's been updated, the 5.50 rpm at the Aladdin site
> didn't have the uniprint driver compiled in. Do gs -h to see.
> Check out
>
> http://www.cs.wisc.edu/~ghost/aladdin/doc/Devices.htm
>
> Bob T.
>
I think it has been updated; I see "uniprint" in the output of "gs -h", all
three Epson Stylus options (600p, 600pl, 600ih) for the Uniprint driver in
printtool. What I *don't* know is how to really test the colors and
resolutions. All three drivers seem to work fine. --- John
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------------------------------
From: [EMAIL PROTECTED] (Robert McConnell)
Subject: Re: sunsite.unc.edu servers
Date: Sun, 07 Mar 1999 23:45:31 GMT
I understand that they are called SUNsite because most of the
equipment was donated by Sun. I believe that it is a recent release of
Solaris on a Sparc.
Bob McConnell
N2SPP
On Sun, 07 Mar 1999 01:11:45 +0000, Seth Van Oort
<[EMAIL PROTECTED]> wrote:
>Does anyone know what they're running?
>
>Seth
------------------------------
From: Michel <[EMAIL PROTECTED]>
Crossposted-To: alt.destroy.microsoft,comp.os.linux.advocacy,alt.linux
Subject: Re: More bad news for NT
Date: 7 Mar 1999 23:01:09 -0600
Bill Unruh wrote:
>
> In <[EMAIL PROTECTED]> Joan Higginz <[EMAIL PROTECTED]>
>writes:
> >Jon Wiest wrote:
> >> I'd say the whole process of getting it going is pretty stupid. Heck
> >> setting up PPP requires me to read and absorb a 50 page HOWTO. That's okay,
> >> I like learning, but gawd, doesn't everybody want PPP?
>
> >I set up ppp on Redhat 5.2 last night. I read a single paragraph in a README
> >file somewhere. Had it running in 5 minutes.
> >(And I'm relatively new to Linux)
> >Nobody "requires" to read and absorb a 50 page HOWTO.
>
> The problem is if your ISP is a bit different than you expected. Then
> the task can become much more tedious (see
> http://axion.physics.ubc.ca/ppp-linux.html
> for some of the possibilities)
Not really, if it uses pap or chap, I just make a check mark for that and it's up
and running. My install took less than 5 minutes. All you need to do is click on a
few icons and enter the info needed. All the support comes out of the box during
install. I can even set it to use Samba and fool winblows into thinking I'm using
NT but at a much higher speed. A 100Mhz Pentium with Linux is faster than a 330Mhz
Pentium with NT.
Try running Real Audio and Visual Age for C++ at the same time on NT, after a while
the start of a search in the editor could take as long a 30 secondes to a minute.
The file is about 4000 lines at most. Killing Real Audio doesn't get it's sanity back,
a reboot is the only clean up. And no, the screen saver isn't enabled, it's worst with
it enabled.
--
Tired of Windows' rebootive multitasking?
then try Linux's preemptive multitasking
http://www.netonecom.net/~bbcat/
We have software, food, music, news, search,
history, electronics and genealogy pages.
------------------------------
From: "David Z. Maze" <[EMAIL PROTECTED]>
Subject: Re: Running behind your back: Crontab defaults?
Date: 08 Mar 1999 00:03:29 -0500
oak <[EMAIL PROTECTED]> writes:
oak> Is there anything in my crontab below that I really need? What am I
oak> doing by disabling everything in crontab here? I'm just a single user
oak> at home.
oak> #* * * * * root [ -x /usr/sbin/atrun ] && /usr/sbin/atrun
Is only needed if you ever use the at(1) program, which is a pretty
standard Unix thing. Uses almost no processor power on its own.
oak> #55 5 * * * daemon /etc/cron.d/lib/update-locatedb
Is only needed if you ever use locate(1). I find it handy. The
downside is that it creates an index of everything on your hard drive,
which takes a long time and slows things down a lot.
oak> I think distributions should keep in mind that the majority of linux
oak> users are single standalone users NOT users running isp's and servers.
oak> There should be a real usable single user mode, the standard single
oak> user mode is really more like a maintenance mode and not something a
oak> single user can use as a regular mode of operation.
What do you want a single-user mode to do? If you want a mode with no
daemons running, you should probably tweak the symlinks in /etc/rc?.d
or /etc/init.d/rc?.d so you get a runlevel with just the services you
want running. In Unix in general, single-user mode is specifically
intended to be a maintenance mode with nothing running, so you can
safely do things like check disks for breakage.
(I also claim that most of the services provided on a typical Linux
box *are* useful on a more-or-less single-user machine. My system
provides printer services (so I can print), mail service (so messages
I send go out to the network or get queued if that's not possible),
name service (and caching) for itself, and so forth. The first time I
installed a Web server on a personal machine was to test out CGI
scripts; in Debian you can also use this to look through system
documentation with a Web browser, which can be quite useful.)
oak> # run-parts
oak> 03 3 1 * * root [ -x /usr/sbin/cronloop ] && /usr/sbin/cronloop Monthly
oak> 04 4 * * 6 root [ -x /usr/sbin/cronloop ] && /usr/sbin/cronloop Weekly
oak> 05 5 * * * root [ -x /usr/sbin/cronloop ] && /usr/sbin/cronloop Daily
oak> 42 * * * * root [ -x /usr/sbin/cronloop ] && /usr/sbin/cronloop Hourly
If your system is like my (Debian) box, these entries probably go
through the files in /etc/cron.daily and the like and run every
program there. So each job listed in the /etc/cron.daily directory
runs every day.
Also note that you can tweak this file: if your system is up 24/7 and
5:05 AM is too early/late for daily cron jobs to run, you can change
the time to 3:05 or 10:05 just by changing the numbers at the front of
the "Daily" line.
--
David Maze [EMAIL PROTECTED] http://donut.mit.edu/dmaze/
"Hey, Doug, do you mind if I push the Emergency Booth Self-Destruct Button?"
"Oh, sure, Dave, whatever...you _do_ know what that does, right?"
------------------------------
From: Robert Barnes <[EMAIL PROTECTED]>
Crossposted-To: alt.os.linux,comp.os.linux.setup
Subject: Re: No-Win Modem Situation
Date: Mon, 08 Mar 1999 12:00:44 -0500
Why does it have to be an internal? An external modem is guarenteed
to be a true modem.
If it must be an internal, stay away from PCI based modems. Most
(99%) are winmodems. Price is also a good indicator, if it cost
$14.95, it's a winmodem.
-bob
Hugh Johnson wrote:
>
> I'm having a hard time trying to find a good internal modem (at a good
> price) that will work with RedHat. Today I bought a Viking v.90, which
> said nothing on the box about being a WinModem or requiring Windows or
> anything of the sort. The techie behind the service counter said it
> would work with Linux. So I brought it home, plugged it in, and it was
> 100% WinModem crap. Now I'm afraid to buy anything else unless I'm
> really sure it'll work. Does anybody have any specific suggestions
> (make & model)? What about the Zoom 2919? www.zoomtel is no-tell.
> Where can I find this info? Thanks.
------------------------------
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