KeepAlive dedicates a process to one client until the KeepAliveTimeout. If you have 150 MaxClients and your KeepAliveTimeout is 5 sec, and you get 150 clients

KeepAlive dedicates a process to one client until the KeepAliveTimeout. If you have 150 MaxClients and your KeepAliveTimeout is 5 sec, and you get 150 clients in one sec, you can't serve another for 5 more seconds. Ditching KeepAlive gets rid of this problem. So you want to lower it basically if you have a lot of different clients coming at the same time. On the other hand, if you have a few clients and they each make a lot of requests in a short amount of time, KeepAlive can save some time and resources. In answer to your other question, I wouldn't worry too much about this stuff until you need to. When that happens, there are a lot of good resources on the Web, and you can post here and I'm sure people will help you. If not, contact me, and I'll do the best I can :) Here are some further explanations about KeepAlive: http://virtualthreads.blogspot.com/2006/01/tuning-apache-part-1.html http://virtualthreads.blogspot.com/2006/01/tuning-apache-par... and http://www.perlcode.org/tutorials/apache/tuning.html http://www.perlcode.org/tutorials/apache/tuning.html