Open your x3270 tool and select Connect -> Other
Then insert the desired IP Address or Hostname, port or any parameter.
Connect to the Mainframe and perform your logon steps as usual.
I was wondering how many free interactive tutorials we have online, I’ll update this post every time I find a new one.
Chef – https://learn.chef.io/
Mainframe (z/OS) – https://masterthemainframe.com/
Python – https://www.learnpython.org
Ruby on Rails – https://www.learnrubyonline.org/
Vim – https://www.openvim.com/