Re: [cobalt-developers] Raq 3 Hangs! Websites down

["earthlink" <joelmon2002@xxxxxxxxxxxxx>]

I will try this, thanks. However, I am wondering if it is a network problem
as the emails would be received, I just couldn't connect. Nobody could via
telnet
or web browser

How would I check if I was syn flood attacked?

Or could it be that only 16 megs of 258 ram are available?

(I checked using 'top')

Joel
----- Original Message -----
From: Jeff Lasman <jblists@xxxxxxxxxxxxx>
To: <cobalt-developers@xxxxxxxxxxxxxxx>
Sent: Tuesday, April 02, 2002 2:37 AM
Subject: Re: [cobalt-developers] Raq 3 Hangs! Websites down


> earthlink wrote:
>
> > I am wondering now that I can log in (Until the next damn 'freeze')
> > what commands I can type to try to grasp what would cause this out of
> > nowhere after 1.5 years of no problems
>
> Are the fans running?  Has someone actually looked?  Not after
> rebooting, but before rebooting?
>
> Have you used chkrootkit to make sure you haven't been rooted?
>
> Have you installed logsentry?
>
> What kind of security do you have installed on the system?
>
> It could be a network problem... but it doesn't have to be.
>
> How about a cron job to send you the temperature of the RaQ every
> quarter-hour?
>
> The easy way is to create a file with the following contents at
> /etc/cron.quarter-hourly/mailtemp (without the snipmarks, of course):
>
> <snip>
> #!/bin/sh
> echo "  " > ~/tempfile
> grep temperature /proc/cpuinfo >> ~/tempfile
> /usr/sbin/sendmail jlasman@xxxxxxxxxxxxx < ~/tempfile
> </snip>
>
> chown it root:root, and chmod it 700
>
> Not only will this send you the temperature every quarter-hour, it'll
> also let you know if the RaQ is working while you can't reach it.  If it
> still sends you email while you can't reach it, then that's a repeatable
> symptom.
>
> If it doesn't send you email while you can't reach it, but has some
> saved up when you finally reboot it, that's another symptom.
>
> I'd sure start this way.
>
> Jeff
> --
> Jeff Lasman <jblists@xxxxxxxxxxxxx>
> Linux and Cobalt/Sun/RaQ Consulting
> nobaloney.net
> P. O. Box 52672, Riverside, CA  92517
> voice: (909) 778-9980  *  fax: (702) 548-9484
>
>