Linux group admin question.
by byrdca
A bit of a conceptual question. Can anyone inform me about the
functional difference between a system group (GID < 500) and a
non-system group (GID>=500).
I understand that if I'm creating a group like the classic
"accounting" to which I will add general users so that they can share
accounting files I should use a non-system group. The question is, is
there any fundamental difference other than GID range between a system
group and a non-system group i.e. when the system is determining if a
user has permission to rwx a file?
Thanks for the help.
17 years, 8 months
running top - floating point exception
by Tom Brown
Hi
When running a top on a machine running FC3 i _sometimes_ get a floating
point exception and top crashes. This seems to happen if the box has
been up for some time. Does anyone know what causes this and what can be
done to debug it?
thanks
17 years, 8 months
Re: Linux home data center challenge :-)
by David G. Miller (aka DaveAtFraud)
Tom Diehl <tdiehl(a)rogueind.com> wrote:
>At 00:40 05/10/2006, you wrote:
>>
>
>
>>>> I was just speculating how hard it would be to turn my Fedora
>>>> box (which is up all the time) into the central system all
>>>> my other computers go to for information (smtp, dns, imap, dhcp,
>>>> etc).
>>
>>
>....
>
>
>
>Since you are already using fedora, you might want to look at Centos. That is
>a rebuild of RHEL. 7 year support IIRC.
>
Been doing that here for several years. My "server" (Athlon 1700+ with
768MB RAM) is currently running CentOS 4.4. I originally started out
with WhiteBox 3 (RHEL 3 equivalent) but the support and community didn't
seem to be there. I wanted to get to an RHEL 4 equivalent with a 2.6
kernel so I could run pam_abl. I installed CentOS 4.3 right after it
was released and yum upgraded the system to 4.4 automagically about a
month ago. Pretty slick. The box provides my firewall/NAT server, DNS,
DHCP, IMAP, POP, SMTP, CUPS, backup (Amanda), Samba (print and shared
disk) and NFS. It sounds like a lot for a low end box but the only
users are my wife and me.
[root@fraud ~]# cat /etc/redhat-release
CentOS release 4.4 (Final)
[root@fraud ~]# uname -a
Linux fraud.davenjudy.org 2.6.9-42.0.2.EL #1 Tue Aug 22 23:56:05 CDT
2006 i686 athlon i386 GNU/Linux
[root@fraud ~]# uptime
09:28:20 up 32 days, 20:37, 10 users, load average: 0.00, 0.00, 0.00
Cheers,
Dave
--
Politics, n. Strife of interests masquerading as a contest of principles.
-- Ambrose Bierce
17 years, 8 months
gdb crash: Cannot fetch general-purpose registers for thread...
by Wade Hampton
I have a multithreaded program running on updated Fedora Core 4 that I am
trying to debug with GDB. When my program exits, gdb reports an error:
Cannot fetch general-purpose registers for thread [some big number]:
generic error
When I try to do anything else at this point, gdb hangs. Typing run results
in gdb not starting the program and becoming unresponsive. If I try to
quit, gdb becomes unresponsive and I have to kill the process from another
window.
I found an older bug describing this same problem, but occuring on gdb
version 5.3
http://sourceware.org/cgi-bin/gnatsweb.pl bug 1981
This is a GDB crash. Anyone know of a cause (could my program have a bug
that is causing it)? Anyone know of a fix?
Fredora Core 4:
Kernel: 2.6.17-1.2142_SMP
gdb: 6.3.0.0
gcc: 4.0.2-8
This same problem also occurs on Fedora Core 5:
Kernel: 2.6.17-2174
gdb: 6.3.0
gcc 4.1.1-1
Thanks for the help,
--
Wade Hampton
17 years, 8 months
Re: yum broken ... HELP ....
by Gregory Machin
if I try and exicute python from the comand line I get the following ....
-bash: /usr/bin/python: cannot execute binary file
On 10/4/06, Tony Nelson <tonynelson(a)georgeanelson.com> wrote:
>
> At 8:45 AM +0200 10/4/06, Gregory Machin wrote:
>
> >Hi
> >when i run yum i get the following
> >
> >[root@fwlw-dsl ~]# yum update
> >import: unable to open X server `'.
> >/usr/bin/yum: line 3: try:: command not found
> >import: unable to open X server `'.
> >/usr/bin/yum: line 5: except: command not found
> >/usr/bin/yum: line 23: syntax error near unexpected token `('
> >/usr/bin/yum: line 23: `""" % (sys.exc_value, sys.version)'
> >
> >I have reinstalled yum and it's the same ....
> >what do i try next ...
>
> I don't know. For some reason, yum is being run as a bash script rather
> than a python script. The file /usr/bin/yum should have a first line that
> refers to python:
>
> #!/usr/bin/python
>
> Typing "python" at the command line should run python (press Ctl-d to get
> back out).
> --
> ____________________________________________________________________
> TonyN.:' The Great Writ <mailto:tonynelson@georgeanelson.com>
> ' is no more. <http://www.georgeanelson.com/>
>
> --
> fedora-list mailing list
> fedora-list(a)redhat.com
> To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list
>
--
Gregory Machin
gregory.machin(a)gmail.com
www.linuxpro.co.za
17 years, 8 months
SElinux and speed issues
by Rob Brown-Bayliss
Hi, some time ago, maybe a year of so I saw a post some where
suggesting that disabling selinux would improve the speed of gnome
(cant recall weather it was fedora specific or not) and I did and yes
things (most notably menus and window opening and closing) were
faster...
With the fc6 just around the corner I was wondering if this is still
the case, and perhaps more importantly is selinux worth the hassel on
a single user home desktop machine?
Thanks...
--
Rob
17 years, 8 months
Installation problem
by Venkat N
Hi,
Iam new to linux. I tried to install Fedora 5. But Iam unable to install it in graphical mode. I tried to install it in text mode by typing 'linux text' at prompt:
I could install it. but when i say 'startx' at prompt: Iam unable to go to the GUI mode. Iam able to see garbled screen. I tried to install using expert,lowres,nofb,noprobe mothods. But no use. Can anyone give me any suggestion please...?
Note: Iam able to run the live CD successfully on my machine. But the problem is with the installation only.
My system configuration is...
Processor : Intel Pentium 2.88 dual core
Mother board : Intel 102d2
RAM : 512mb
Monitor : 17'' LCD (LG)
---------------------------------
Do you Yahoo!?
Everyone is raving about the all-new Yahoo! Mail.
17 years, 8 months
Help with task
by Dan Track
Hi
I appreciate this is OT, but I'd welcome any help. Basically I want to
find out % disk utilisation on my servers. However to automate it I'm
going to need to do some wizardry, which I'm having problem with.
I approached with initially running df -h then piping that output
through awk, then somehow get the figures and run them through expr.
Can someone please help me with this.
Thanks in advance
Dan
17 years, 8 months
FC4->FC5 KDE authentication
by Gary Stainburn
Hi folks.
Following on from my earlier kmail problems, I think I've narrowed it down.
My home is on a FC4 server and if I log in locally (walking up to it, or using
VNC) then kmail works fine.
If I log in remotely from one of my other servers, or any of the workstations
(all running FC5) kmail fails.
It starts up, but then either immediately pops up a window saying it can't
start the process pop3, or it first asks for a password before doing
likewise.
The problem would appear to be 1) incompatability between FC4/FC5 or the KDE
installed on them, 2) the ssh connection I use to connect the two, or 3) a
combination of the two.
I've only been experiencing the problem for a few weeks, and from memory
coinsided with a 'yum update' run on the FC5 systems.
Anyone got any ideas.
--
Gary Stainburn
This email does not contain private or confidential material as it
may be snooped on by interested government parties for unknown
and undisclosed purposes - Regulation of Investigatory Powers Act, 2000
17 years, 8 months
