title: Allocate memory for apache in a linux server
body: <p>I have a linux server that I use for many things. One of the most important is a apache web server. Sometimes other applications use a major part of the memory and the apache server don't work fine.
  There is a method to allocate a minimum amount of memory for apache? For example if I have 8GB RAM and I want apache always have 5 GB allocated and the system and the others applications cannot use more than 3 GB.
  Is this possible?
  Thank you very much!</p>