Web sites not responding

[wemnael]

I have a server and last version of cPanel installed on a VPS on it. Usually all sites are loading and everything works great. Occasionally, websites are no longer loading. I need to wait forever, and the browser does not return any error message. All sites responds in the same way: the loading bar is present but sites are not loading.

Please see those messages that I receive on e-mail:

imap failed @ Sat Oct 23 12:52:42 2010. A restart was attempted automagically.
Service Check Method: [check command]

Cmd Service Check Raw Output: dovecot is not running

nameserver failed @ Sat Oct 23 12:52:42 2010. A restart was attempted automagically.
Service Check Method: [check command]

Cmd Service Check Raw Output: named is not running

spamd failed @ Sat Oct 23 00:38:25 2010. A restart was attempted automagically.
Service Check Method: [check command]

Cmd Service Check Raw Output: Spamd is not running

Receiving those messages it is not happening very often. The last with spamd , I get it more often.

I verified logs but didn't see anything relevant. What would be the cause of this random issues? Why my sites are not responding, since the load is good and I do not have any networking issues?

Thank you.

Victor

[Infopro]

By your post it sounds to me like your server crashed. You should contact your VPS host for assistance with this. I'm not sure how much help a forum could be at this point.

[cPanelTristan]

You can see if the machine did reboot using these commands:

uptime
last

uptime gives the number of days the machine or instance has been up, while last lists a log of the reboots.

[wemnael]

Thank you! I typed commands and I can see reboots. I wonder if it is a software crash because it happens sporadically (for several minutes), about once a day. As I said, sites responds in the same way: the loading bar freezes and sites are not loading. At that moment the server console can be used without problems and I can login in vSphere... If I restart cPanel service from command line everything is solved. I need to to this every time...