I have a Xen virtual private server (VPS) running Ubuntu 8.10, with 128M RAM.
I've found several "how to optimize Apache and MySQL for low-memory VPS" pages via Google, but they provide contradictory information. So I'm asking Server Fault: how does one optimize Apache and MySQL for a low-memory VPS configuration?
A couple of people have suggested using nginx instead of Apache. I'll look into that, but I'd prefer to stick with Apache if possible, just to avoid having to learn all about configuring application stacks on top of an unfamiliar (to me) web server.