I just ordered a dedicated server with 512MB memory, running Linux. I find that the memory usage reported in Plesk panel is over 95% percent.
Do I have to worry about if the memory is enough or not? I suppose there is a virtual memory and the OS should do the swap. But is this common to a typical web server?
I do not have anything extra running on the sever. Just the basic services such as DNS and SMTP.
Incidently, I have a problem with SMTP service. It will keep run for a couple of hours and then it may crash on its own. Does any one know what would cause this problem?