After installing the RPM, you should do the following in order to configure
MediaWiki:
1. Configure the necessary MySQL database. Read the following URL for
some details:
http://meta.wikimedia.org/wiki/MySQL_config
2. (Optional) If you wish to configure MediaWiki from another machine,
edit '/etc/httpd/conf.d/mediawiki.conf' and say so.
3. Restart your web server:
# /etc/init.d/httpd restart
4. Browse to http://localhost/mediawiki/config/ and fill the necessary forms.
5. Move the configuration file to the default location:
# mv /var/www/mediawiki/config/LocalSettings.php /var/www/mediawiki
6. Protect the config directory against accidental writes:
# chmod g-w /var/mediawiki/config
Your wiki will be set up.
For more information about installation, please refer to:
http://meta.wikimedia.org/wiki/Help:Installation