I am using nginx, not apache. And I do need nginx to run. My vps has 1 GB guaranteed RAM and when I finished installing ispconfig3 I was already over that. By making some changes and following this guide, I am down to about 650 MB RAM usage (when the vps is idle):
"How to Optimize ISPConfig 3, reduce 150MB+ RAM: Disable clamav, amavis, spamd"
I've read that a simple ubuntu server consumes about 500 MB ram. So I want to be able to save those extra 150 MB whenever I choose. I will be running ispconfig3 sparingly after the initial setup anyway. Then I will focus on optimizing ubuntu.
I am new to Linux, I come from the Windows environment. So what I ask seems very simple to me. So, any suggestions please?