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From: jayjwa <jayjwa@atr2.ath.cx.invalid>
Newsgroups: comp.os.linux.misc
Subject: Re: Apache configuration question - MPM modules
Date: Sun, 08 Feb 2026 16:27:46 -0500
Organization: atr2net 2026
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References: <slrn10ofb8d.3cerc.lars@cleo.beagle-ears.com>
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Lars Poulsen <lars@beagle-ears.com> writes:

> I vaguely remember a long time ago having to select among 2 or 3
> different MPM modules, using configuration statements in httpd.conf,
> but looking at the httpd.conf file that I carried over from the old
> system, I do not see any such statements.
"Prefork" was the older one. You select them in the configs, wherever
they live, like so:

LoadModule mpm_event_module lib64/httpd/modules/mod_mpm_event.so
#LoadModule mpm_prefork_module lib64/httpd/modules/mod_mpm_prefork.so
#LoadModule mpm_worker_module lib64/httpd/modules/mod_mpm_worker.so

Check in /etc/{apache,httpd,apache2} and likewise. 'locate
mod_mpm_event.so' will likely show you where the modules live. Slackware
is very close to upstream, so on my system they live in
/usr/lib64/httpd/modules/
Your distro probably does this differently. On Slackware, most of the
action happens in httpd.conf .

You also have to enable the http2 module, which might be a different
package all together. I'm assuming you want HTTP2. 

LoadModule http2_module lib64/httpd/modules/mod_http2.so
<IfModule http2_module>
        Protocols h2 h2c http/1.1
</IfModule>

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