Good ol' telnet... if you're telnetted into another system, and the application running on the system wants to use Ctrl-% or Ctrl-], then you'll need to start telnet with the -e '' option. This will disable the escape key sequence.

Anyways, nowadays if you're not working with legacy equipment, you should be using SSH which is a lot more secure.

External Links * [ WhiteHorn Secure Terminal] Free Telnet client for Windows

See also Networking, SSH