I have corrected an issue with telnet connections to shellx.eskimo.com from machines with firewalls blocking port 113 (auth).
If you were getting immediately disconnected, this was because shellx was attempting to use auth protocol to identify the originator and your firewall was blocking it. I’ve removed this requirement so it will allow you to connect.
Ssh is still the preferred method because telnet does not encrypt traffic and your login and password are passed over the internet plain text.
If you are originating from a Windows machine, Putty will provide ssh capability and is free.