Gentoo Linux: Apache

• Apache
• Apache Worker MPM PHP CGI Suexec Setup
• Gentoo

Running Apache on Gentoo gives you a lot of flexibility. However, out of the box, there are a lot of modules that are not used in many client configurations.

The modules that Apache is built with can be set by APACHE2_MODULES in /etc/make.conf.

Here is a trimmed down version that removes many unused modules.

APACHE2_MODULES="actions alias auth_basic authn_default auth_digest authn_file authz_default
authz_host authz_user autoindex cache cgi cgid deflate dir disk_cache env expires file_cache
filter headers include info log_config logio mem_cache mime mime_magic negotiation rewrite
setenvif status unique_id userdir vhost_alias"

Gentoo lets you configure the MPM in use. The most common ones are prefork and worker, with prefork being the default. You can change this in make.conf.

APACHE2_MPMS="worker"

You can build Apache, or any program, with different settings than used by make.conf. Apache is a good candidate, since it is a primary application in the LAMP stack.

An optimized version using gcc with highest optimizations:

mkdir -p /etc/portage/env/www-servers

Edit apache file in that directory and add this:

CFLAGS="-O3 -pipe -march=native"
CXXFLAGS="${CFLAGS}"