Apache - How to check what MPM Apache is using in Linux (worker, prefork or event)

Question

I have installed CentOS webpanel on my VPS. It says the default MPM is event. How can I verify?

Answer 1

You can use command "httpd -V". httpd should be present in the bin folder of Apache.

# /usr/local/apache/bin/httpd -V

Server version: Apache/2.4.29 (Unix)

Server built:   Feb 14 2018 13:01:48

Server's Module Magic Number: 20120211:68

Server loaded:  APR 1.6.2, APR-UTIL 1.6.0

Compiled using: APR 1.6.2, APR-UTIL 1.6.0

Architecture:   64-bit

Server MPM:     event

  threaded:     yes (fixed thread count)

    forked:     yes (variable process count)

Comments

The above command will work on CentOS. If you have Ubuntu, try the following command:

a2query -M