500 Internal Server Error on VPS Panel

RodrigoM · Oct 25, 2010

Hi!

We are experiencing 500 Internal Server Error problems while trying to connect to the control panel of one of our VPS (ubuntu-8.04-x86_64).

Here are some logs:

root:/# cat /var/log/sw-cp-server/error_log
2010-10-24 19:22:31: (log.c.135) server stopped
2010-10-24 19:23:37: (log.c.75) server started
2010-10-24 19:25:45: (log.c.135) server stopped
2010-10-24 19:26:09: (log.c.75) server started
2010-10-25 12:34:35: (log.c.135) server stopped
2010-10-25 12:43:24: (log.c.75) server started
2010-10-25 13:09:10: (log.c.135) server stopped
2010-10-25 13:09:10: (log.c.75) server started

It's not a disk space problem:

root:/# df -h
Filesystem Size Used Avail Use% Mounted on
vzfs 50G 16G 33G 33% /
tmpfs 5.4G 696K 5.4G 1% /var/run
tmpfs 5.4G 0 5.4G 0% /var/lock
vzfs 50G 16G 33G 33% /dev/.static/dev
udev 5.4G 0 5.4G 0% /dev
tmpfs 5.4G 0 5.4G 0% /dev/shm
tmpfs 5.4G 0 5.4G 0% /opt/psa/handlers/before-local
tmpfs 5.4G 0 5.4G 0% /opt/psa/handlers/before-queue
tmpfs 5.4G 0 5.4G 0% /opt/psa/handlers/before-remote
tmpfs 5.4G 0 5.4G 0% /opt/psa/handlers/info
tmpfs 5.4G 0 5.4G 0% /opt/psa/handlers/spool

root:/etc/init.d# /usr/bin/sw-engine-cgi -c /usr/local/psa/admin/conf/php.ini -d auto_prepend_file=auth.php3 -u psaadm
PHP Notice: Undefined index: REQUEST_URI in /opt/psa/admin/auto_prepend/auth.php3 on line 30
Expires: Fri, 28 May 1999 00:00:00 GMT
Last-Modified: Mon, 25 Oct 2010 11:21:15 GMT
Cache-Control: no-store, no-cache, must-revalidate
Cache-Control: post-check=0, pre-check=0
Pragma: no-cache
P3P: CP="NON COR CURa ADMa OUR NOR UNI COM NAV STA"
Content-type: text/html

<html><head><title></title>
<script language="javascript" type="text/javascript" src="/javascript/common.js?plesk_version=psa-9.5.2-95100504.17"/></script>
<script language="javascript" type="text/javascript" src="/javascript/prototype.js?plesk_version=psa-9.5.2-95100504.17"></script>
<script>
var opt_no_frames = false;
var opt_integrated_mode = false;
</script>

</head><body onLoad=";top.location='/login.php3';"></body></html>

Any ideas?

Thank you so much for your time.

IgorG · Oct 25, 2010

Maybe it is related to lack of resources for this VPS? Did you checked failcounters with

# cat /proc/user_beancounters

Did you checked Virtuozzo logs for possible OOM killers for this VPS?

CatalinS · Oct 28, 2010

Hello,

I have seen that error due to a corrupted/missing table in the psa database. Ask your Web Hosting provider to disable "Offline Management" and the exact errors will appear in browser.

Cheers.

500 Internal Server Error on VPS Panel

RodrigoM

Guest

IgorG

Plesk addicted!

CatalinS

Basic Pleskian

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