Server reboot question

[pstechnology]

How do I find our if a Linux server is rebooting or not?

I suspect my box (FC4 with Plesk 8.1.1) is rebooting regularly. I have checked the messages log in /var/log and there is not indication in there that the server has rebooted, and the boot.log files are showing as 0 bytes, even after a manual reboot.

My suspiscion is coming from the fact that on some days I do not receive a logwatch email. I have the box set to send a detailed logwatch file daily. When I reboot the server manually, I do not receive that email for that day. The thing is, I am not receiving the email every day, despite not manually rebooting the server.

Does anyone have any ideas?

Thanks

 

[breun]

I'd check the uptime of the box. And have you checked your maillog to check on those logwatch emails? Maybe some spam filter is catching them somewhere?

 

[pstechnology]

Hi

Thanks for your response.

The uptime is reading : 5%1 day(s) 10:51

Interestingly, the maillog files are all showing 0 bytes.

I am running 4PSA cleanserver and spamguardian, does anyone know if they redirect the maillog files to elsewhere?

Any other ideas how I can find out when the reboot is happening and what is causing it?

Thanks

 

[breun]

There is a bug in the display of the uptime in current Plesk versions. Please just run the uptime command in a shell.

Run grep maillog /etc/syslog.conf to find the location of the maillog. I believe it's in /usr/local/psa/var/log/ on most systems.

 

[pstechnology]

Hello Breun

You are right about the maillog files, they are elsewhere.

I have run the uptime command, and it shows a 5 day up time. I have also looked at the maillog files, and it does look like the failure to receive the Logwatch email is something to do with either permissions, a DNS problem or a spam blocker.

I will investigate further. Thank you all for your help so far. If I find a cause, I will post the results here for anyone else with a similar query.

 

[NightMan]

check your messeges to see the server is rebooting..