The package apache2-doc contains the complete Apache manual in various localizations for local installation and reference. It is not installed by default—the quickest way to install it is to use the command zypper in apache2-doc. Once installed, the Apache manual is available at http://localhost/manual/. You may also access it on the Web at http://httpd.apache.org/docs-2.2/. SUSE-specific configuration hints are available in the directory /usr/share/doc/packages/apache2/README.*.
For a list of new features in Apache 2.2, refer to http://httpd.apache.org/docs/2.2/new_features_2_2.html. Information about upgrading from version 2.0 to 2.2 is available at http://httpd.apache.org/docs-2.2/upgrading.html.
More information about external Apache modules from Section 22.4.5, External Modules is available at the following locations:
More information about developing Apache modules or about getting involved in the Apache Web server project are available at the following locations:
If you experience difficulties specific to Apache in openSUSE, take a look at the openSUSE wiki at http://http://en.opensuse.org/Apache. The history of Apache is provided at http://httpd.apache.org/ABOUT_APACHE.html. This page also explains why the server is called Apache.