Web Hosting Talk : Web Hosting Main Forums : Hosting Security and Technology : VPS - spamd & nameserver fails

[Dennis H]

Hello, recently i have been receiving emails from cpanel saying that spamd and nameserver fails in separate emails of course.

This has happend once when running, and everytime when rebooting my VPS. I have no idea what to do, I'm new with Linux and VPS.

[Hostwaresupport]

Hello,

Could you paste cPanel logs here ?

[madaboutlinux]

What are the exact contents of those emails? And what action do you take once you receive the email?

[Dennis H]

Originally Posted by Hostwaresupport

Hello,

Could you paste cPanel logs here ?

What specific cPanel log?

Also now my CPU is reaching 2.67!!!

Originally Posted by madaboutlinux

What are the exact contents of those emails? And what action do you take once you receive the email?

Now mysql and sshd failed as well and my CPU is going crazy.


sshd failed @ Sat Feb 13 14:58:33 2010. A restart was attempted automagically.
Service Check Method: [check command]

Cmd Service Check Raw Output: sshd is not running

-----------------------------------------------------

mysql failed @ Sat Feb 13 16:11:22 2010. A restart was attempted automagically.
Service Check Method: [check command]

Cmd Service Check Raw Output: mysql has failed

And so on...

Now my CPU load is reaching 3.81?!!!

[keserhosting]

Did you have check the logs through the /var/log/messages ?
This will help you trace the reason for service failure.

[Dennis H]

The CPU problem is fine now, my host notified me that it was a problem wit another client. But still, i shutdown my VPS and when booting it i instantly recieved 4 emails saying ''nameserver on xxxx.com failed''

First email

nameserver failed @ Sat Feb 13 14:59:15 2010. A restart was attempted automagically.
Service Check Method: [check command]

Cmd Service Check Raw Output: named is not running

The rest, this email was sent to me 3 times

nameserver failed @ Sat Feb 13 14:58:33 2010. A restart was attempted automagically.

[Dennis H]

Originally Posted by keserhosting

Did you have check the logs through the /var/log/messages ?
This will help you trace the reason for service failure.

As i mentioned, I'm new with Linux. Please explain how i do this.

[madaboutlinux]

Originally Posted by Dennis H

What specific cPanel log?

Also now my CPU is reaching 2.67!!!




Now mysql and sshd failed as well and my CPU is going crazy.


sshd failed @ Sat Feb 13 14:58:33 2010. A restart was attempted automagically.
Service Check Method: [check command]

Cmd Service Check Raw Output: sshd is not running

-----------------------------------------------------

mysql failed @ Sat Feb 13 16:11:22 2010. A restart was attempted automagically.
Service Check Method: [check command]

Cmd Service Check Raw Output: mysql has failed

And so on...

Now my CPU load is reaching 3.81?!!!

Those emails are sent by cPanel monitoring system called chkservd. If it sees a service unavailable, it restart the service and send an email to the administrator email ID.

You have to check the logs of respective services and figure out whats wrong with the service, for example,

mysql = /var/lib/mysql/server.hostname.err
ssh = /var/log/messages

BTW, if you are receiving them in bulk and see if the service is working fine, you can avoid these false alarms by turning off monitoring from WHM >> Service Manager section.

In respect to CPU usage, you have to provide more details, like output of

top c
ps -auxf

[madaboutlinux]

Originally Posted by Dennis H

As i mentioned, I'm new with Linux. Please explain how i do this.

You have to SSH to your server as root to check the logs. To check the logs you can use

cat /var/lib/mysql/server.hostname.err | more

where, | more, will display logs page wise.