Updated: Feb 19
Depending on the purpose of your wiki, different account creation policies may apply.
MediaWiki account creation by visitors
This is MediaWiki default. Everybody is allowed to create accounts.
No new accounts
The feature that allows new visitors to create their accounts is disabled. In this case, accounts can be created:
By admins (or other user group with appropriate rights)
By people having a special invite link from the admin (available via extension)
Automated wiki account creation
The feature is available when you use external authentication / authorization system:
Wiki account creation by visitors
There is a special page Special:CreateAccount to register a new user account. It provides a set of fields and controls:
Use a temporary random password and send it to the specified email address
Email address (optional)
Real name (optional)
Depending on your wiki configuration, the set of available options may slightly vary, certain restrictions can be imposed on the password length and complexity or characters that can be used in username, etc. Certain configurations may set an email address mandatory and require user email confirmation, or force a CAPTCHA test.
Create a MediaWiki Account Link
The location of the Create account link is not fixed, different skins can place it in different places. The most common places are:
A link in the upper right corner of the page (usually only visible to anonymous visitors)
A button below the user login form on Special:UserLogin
Check out the other articles on our blog that have information on MediaWiki, Wikibase, and various tutorials/help articles.