Editing the UI =

Edit the sidebar: Mediawiki:Sidebar
Edit the site notice (the text displayed above the content of every page): Mediawiki:Sitenotice
The above pages, and more, for modifying the layout and UI content: mw:Category:Interface_messages

iw_local, iw_trans) VALUES ("x2", "http://www.x2engine.com/$1", 1, 0);</syntaxhighlight> Then, a link to the "about" page:

[[x2:partners]]

For more information, see mw:Help:Interwiki

Add custom HTML to the template: Edit VectorTemplate::execute() in public_html/skins/Vector.php (a backup of this skin has been made in Backup/Vector, in case anything should go wrong). The body begins after these lines:

                // Output HTML Page
                $this->html( 'headelement' );

Miscellaneous

Change the syntax highlighting CSS

MediaWiki:Geshi.css

Purging a cached page (i.e. if the sidebar or site notice is out of date)

Add "&action=purge" to the end of the page's url and re-request the page.

Globally purging all cached pages and objects (more useful but more involved)

Log into the server via SSH and run php Scripts/purgeCache.php

Create a URL shorthand for linking to another site

For example, I made one to www.x2engine.com so that the "About X2Engine" in the footer could be made a link to the main X2Engine site:

INSERT INTO interwiki (iw_prefix, iw_url, iw_local, iw_trans) VALUES ("x2", "http://www.x2engine.com/$1", 1, 0);