As the name suggest, the Wiki VM runs this MediaWiki instance.
It runs an Apache2 server with PHP module, in front of it is a reverse proxy (nginx) running on Catfish. If you need to add or adjust things like headers and the HTTPS redirect, check the nginx config on Catfish, not the Apache2 config.
The current version of MediaWiki and the installed Modules can be found here.
These are the most important modules that we have in use:
The Math module allows us to use equations similar as in LaTeX: