suddenly my virtual centos server (5.6 on VMWare-VSphere) is not working... It started with the url not responding, nor the ip. (NO HTTP response, no ping). When I entered on the server via ssh to start troubleshooting I noticed that most of commands don't work anymore:

• top-> machine hangs (it's not slow anyway)
• ps -> machine hangs (funny enough apache server and web app are running and sending me emails)
• on some directory ls -l -> machine hangs after first file, if ls > l.txt the file show only the first file
• "more" command, also hangs on some file.

So there are very little things I can try. I recovered my virtual machine from yesterday and before yesterday, and they show the same behaviour, it hangs on commands (but yesterday they were working). There is no firewall on the machine, there is on the host though. I can connect with ftp but I can't download files nor list directory apart the user top directory...

Working hard right now, any idea appreciated