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Server usually restart not reason

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Operating Systems Linux Red Hat Server usually restart not reason
# 1  
Old 06-06-2011
Server usually restart not reason
Hi everyone,
- I have CentOs server 5.4 , I usually remote by ssh.
- My problem is server usually restart but I don't reason. I check log in file /var/log/messages: I don't see "signal 15" which kernel have to receive before restart. Everyone can see in attach.
- I try to restart with command "init 6", of course in logfile /var/log/messages, I see "signal 15".
- I guess My server have error in power or hardware.
- anyone have ideals?
log_reboot_normal.txt (54.3 KB) 
log_reboot_unsual.txt (58.4 KB) 
# 2  
Old 06-06-2011
Can you post the entire log for "Jun 6 16:" ot at least some of the lines before

Code:
Jun  6 16:40:14 <name_sever> syslogd 1.4.1: restart.

Also

Code:
# last | grep reboo

Will be helpful.
# 3  
Old 06-06-2011
Thanks for rely,
- Here comand

Code:
"last | egrep reboot"
reboot   system boot  2.6.18-164.el5   Mon Jun  6 16:40          (17:03)
reboot   system boot  2.6.18-164.el5   Mon Jun  6 12:35          (04:00)
reboot   system boot  2.6.18-164.el5   Sat Jun  4 15:45         (2+00:50)
reboot   system boot  2.6.18-164.el5   Sat Jun  4 00:51         (2+15:44)
reboot   system boot  2.6.18-164.el5   Fri Jun  3 17:46         (2+22:49)
reboot   system boot  2.6.18-164.el5   Fri Jun  3 11:09         (3+05:26)
reboot   system boot  2.6.18-164.el5   Mon May 30 09:52         (7+06:43)
reboot   system boot  2.6.18-164.el5   Sat May 28 04:01         (9+12:34)
reboot   system boot  2.6.18-164.el5   Sat May 28 03:25         (9+13:10)
reboot   system boot  2.6.18-164.el5   Fri May 27 06:02         (10+10:33)
reboot   system boot  2.6.18-164.el5   Thu May 19 15:10         (18+01:25)
reboot   system boot  2.6.18-164.el5   Wed May 18 14:36         (1+00:30)
reboot   system boot  2.6.18-164.el5   Wed May 18 14:15          (00:16)
reboot   system boot  2.6.18-164.el5   Wed May 18 12:15          (01:56)
reboot   system boot  2.6.18-164.el5   Wed May 18 11:33          (00:37)
reboot   system boot  2.6.18-164.el5   Wed May 18 11:14          (00:14)
reboot   system boot  2.6.18-164.el5   Tue May 17 22:32          (12:38)
reboot   system boot  2.6.18-164.el5   Thu May 27 23:40         (354+22:47)
reboot   system boot  2.6.18-164.el5   Thu May 27 23:26          (00:07)
reboot   system boot  2.6.18-164.el5   Thu May 27 22:34          (00:11)
reboot   system boot  2.6.18-164.el5   Thu May 27 21:55          (00:12)
reboot   system boot  2.6.18-164.el5   Thu May 27 21:48          (00:03)

- I have a attach file log reboot.
log_reboot.txt (60.6 KB) 
# 4  
Old 06-08-2011
Nothing related in this log, except that there was a logged user before the reboot?

Code:
Jun  4 00:06:39 <name_sever> gconfd (root-7195): starting (version 2.14.0), pid 7195 user 'root'

I`m not very familiar with gnome and its logs, but you can check if the box was not rebooted by user(if gnome logs that) and who was logged before the reboot with last. Other wise look trought the logs and ask if you find something fishy. If this don`t result in anything check hardware(memory, CPU, storage, motherboard etc) and enable auditing.
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