We have just got a dedicated server with Fasthosts, O/S is Linux CentOS 6 64 bit.
It was a fresh install and I have just moved one WordPress site onto there.
The problem is we seem to be getting a memory leak (that's what Fasthosts said) and the database (I think) keeps crashing, so we have to restart the server. Here's details of the issue that Fasthosts sent:
I don't really know how to go about trying to find the cause, my knowlege of UNIX is basic. I did check the mysqld.log file and there were lots of issues relating to the wp_options table, which became corrupt and I have to rebuild.
Corona:
I've posted the output of meminfo below. I don't know what sar is, sorry.
Skrynesaver:
I've managed the first bit of your code, but you've lost me at step 2 sorry, I don't know what the core filename or path to executable are.