We have a couple of ESX 4 server running but one is giving problems.
In VCenter I can connect with the server but get the error: Error detected on ipaddress in clustername: Agent can't send heartbeats.msn size 812, sendto() returnes: Opertaion not permitted. The problem started last week, before then everything ran smooth.
Also if I want to connect now to the server with ssh I get no connection. In the past this used to work.
A last problem is taking backups. We cannot take anymore backups from the server. Also because the login is denied.
I already restarted the ssh service and checked the log files but can't find an error.