[New] How to Install and Use Apache on Ubuntu 24.04

[Rajakavitha1]

created a new guide for Ubuntu24.04 after testing and validating

ubuntu2404apache.txt
apachedebian12.txt

PS: The prefork MPM is the default module that is enabled and loaded in Ubuntu 24.04 and on Debian 12

rajie@apache:~$ sudo apache2ctl -M
Loaded Modules:
 core_module (static)
 so_module (static)
 watchdog_module (static)
 http_module (static)
 log_config_module (static)
 logio_module (static)
 version_module (static)
 unixd_module (static)
 access_compat_module (shared)
 alias_module (shared)
 auth_basic_module (shared)
 authn_core_module (shared)
 authn_file_module (shared)
 authz_core_module (shared)
 authz_host_module (shared)
 authz_user_module (shared)
 autoindex_module (shared)
 deflate_module (shared)
 dir_module (shared)
 env_module (shared)
 filter_module (shared)
 mime_module (shared)
 mpm_prefork_module (shared)
 negotiation_module (shared)
 php_module (shared)
 reqtimeout_module (shared)
 setenvif_module (shared)
 status_module (shared)
rajie@apache:~$ cd /etc/apche2/mods-available

Please confirm if this content needs to be updated accordingly:

Multi-processing Modules

Apache supports several models for handling connections through a particular kind of module: Multi-processing Modules (MPMs). On Ubuntu and many other Linux distributions, the event module is Apache's default MPM. This section provides an overview of each of the three MPMs available and gives you the necessary commands for using them.

Prefork Module

This MPM provides a single-threaded server. It has a single-parent process that spawns child processes, each of which is responsible for a single incoming request. While the prefork MPM is more resource-intensive, it is necessary for applications that do not support multiple threads, like PHP.

1. Enable the prefork MPM. Be sure to first disable your current MPM — the event MPM in this example:

   sudo a2dismod mpm_event
   sudo a2enmod mpm_prefork

2. Find the configuration file for the prefork MPM here: /etc/apache2/mods-available/mpm_prefork.conf. Modify the defaults as needed.

   The prefork MPM is considered highly self-regulating, so usually it is not necessary to adjust its default configuration. However, you may want to review the MaxRequestWorkers value. You should ensure that it is large enough to handle the expected request volume but small enough not to exceed hardware memory limits.

PS: the version of php on Debain 12 is php8.2

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