Ideal operating system for running a dedicated server is Ubuntu or CentOS.
Ideal operating system for running a dedicated server is Ubuntu or CentOS.
You need at least 2GB of RAM for the server. Having 300MB is barely enough compared to the 2GB available, especially if you're short on memory. You might want to consider increasing your RAM. Your server should have more than what a Pentium 4 had in 2009 (4GB!)
The server originally had 2GB of storage, and the number of skinning instances I created let me add another one.
I'll verify whether the older AMD PC can handle more components and only requires a replacement CPU.
Varies by application. Windows Server works fine. For Unix alternatives, consider illumos or OpenBSD.