[CentOS] how to debug random server reboots

Rudi Ahlers rudiahlers at gmail.com
Wed Jun 3 06:53:54 UTC 2009

On 6/3/09, Scott Silva <ssilva at sgvwater.com> wrote:
> on 6-2-2009 2:46 PM Rudi Ahlers spake the following:
>> On 6/2/09, Scott Silva <ssilva at sgvwater.com> wrote:
>>> on 6-2-2009 2:30 PM Rudi Ahlers spake the following:
>>>> Hi all,
>>>> One of our CentOS 5.3 randomly reboots, at different times of the day,
>>>> and I can't see why it's doing it.
>>>> I have looked through the logs, but don't see any thing in there that
>>>> shows me why it has rebooted. How can I debug this?
>>>> Here's a snipped from the log, around the time of the reboot:
>>> <snip>
>>> Random reboots can happen fast enough that nothing gets into the logs.
>>> You
>>> can
>>> try setting up a console and have the system post there. It sometimes
>>> catches
>>> things.
>>> But until then I would do the obvious... Make sure the system is clean
>>> and
>>> not
>>> overheating from "dust bunnies" filling up the chassis.
>>> Remove and re-seat all cards and ram. Make sure all fans are working. Run
>>> memtest overnight if possible. Look back to when the reboots started and
>>> see
>>> if something was added or upgraded.
>> Hi Scott, the server is in the USA, and I'm in ZA. I've been trying to
>> get the IDC to look into the problem, but they're not very helpful and
>> recon I need to check my software. I know the "server" runs desktop
>> hardware, so it could be a hardware problem, but they don't seem to
>> think so.
>> So, I'm trying todo everything I can, from my side, via SSH to see if
>> I can figure it out.
> Will the data center hang a serial port monitor on it for a while? Many of
> them will do it for free, or a few dollars a day, and give you remote access
> into it. Is it your server, or a lease/rental?

It's a rented server from a 3rd party who feels that it's not their
problem. Seems I need to get a new server, from someone else.

Kind Regards
Rudi Ahlers
CEO, SoftDux Hosting
Web: http://www.SoftDux.com
Office: 087 805 9573
Cell: 082 554 7532

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