How to set up a private wiki

Prerequisites

- a server that is accessible to the world wide web

- a folder on the server that can be password protected

- permission to install wiki software and run the management scrips

- permission from the owner of the server

- permission ON the system itself (unix/linux concept)--a username and password with privileges to run scripts, make folders, rename, delete, remove, etc.; FTP and shell privileges for that folder

- PHP

- MySQL (or MariaDB or the functional equivalent): a database system

- username and password associated with a database; power to modify the database, make new tables, delete, rename, ...

Maintenance

You must patch and upgrade Mediawiki regularly to guard against security problems.

Your first defense for security is the password-protected folder.

Your second defense is Mediawiki itself.