CVS repository missing connection types

I'm new to using CVS repositories. I'm trying to import a repo by right clicking in the CVS repositories area, New -> Repository Location and then a window pops up with Add CVS repository. Under connection type, in Eclipse Luna I have 'extssh', but in Eclipse Mars I only have 'ext' and 'pserver'.

I need to use extssh. What is it and how do I configure it?

How do I link my Eclipse to CVS repository?

Solution. In Eclipse, open the Repositories view, right-click that view, and select New→ Repository Location, opening the Add CVS Repository dialog. Enter the required information, and click OK.

What is CVS plugin?

CVS, or Concurrent Versions System, is an open-source version control system that keeps track of all work and changes in a set of files. This is typically used during the implementation of a software project, allowing multiple developers to collaborate.

Install CVS plugin from below link:- http://download.eclipse.org/releases/helios

Then search for "CVS"and select "Eclipse CVS Client" and install it.

Note- This worked for me in STS and Eclipse 2018-12.