Apache 2.x Server

An Apache 2.x Server is an Apache server that is after Apache 1.x.

• • …
• Example(s):
  • Apache httpd 2.4.23, released 2016-07-05
  • Apache httpd 2.2.31, released 2015-07-17
• See: Apache Configuration File.

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References

2016

• https://wiki.apache.org/httpd/DistrosDefaultLayout#Debian.2C_Ubuntu_.28Apache_httpd_2.x.29:

ServerRoot              ::      /etc/apache2
DocumentRoot            ::      /var/www
Apache Config Files     ::      /etc/apache2/apache2.conf
                        ::      /etc/apache2/ports.conf
Default VHost Config    ::      /etc/apache2/sites-available/default, /etc/apache2/sites-enabled/000-default
Module Locations        ::      /etc/apache2/mods-available, /etc/apache2/mods-enabled
ErrorLog                ::      /var/log/apache2/error.log
AccessLog               ::      /var/log/apache2/access.log
cgi-bin                 ::      /usr/lib/cgi-bin
binaries (apachectl)    ::      /usr/sbin
start/stop              ::      /etc/init.d/apache2 (start|stop|restart|reload|force-reload|start-htcacheclean|stop-htcacheclean)

Notes

The Debian/Ubuntu layout is fully documented in /usr/share/doc/apache2/README.Debian

Debian/Ubuntu use symlinks to configure vhosts and load modules. Configuration files are created in their respective sites-available and mods-available directories. To activate vhosts and modules, symlinks are created in the respective sites-enabled and mods-enabled directories to the config files in either sites-available and mods-available. Debian provides scripts to handle this process called 'a2ensite' and 'a2enmod' which activates vhosts and modules.

The default vhost is defined in /etc/apache2/sites-available/default, and overrides the DocumentRoot set in the server context.

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