Signup and connect
From YunixWiki
Signup
Just visit #yunix on the Freenode IRC Network and request a shell with the command below.
You must stay in the channel to be approved, otherwise your request will not be taken seriously (we don't know if you will come back and use the shell or not). You should not change your IRC nick while you are in the channel, as your request is bound to your IRC nick.
!request <your username>
If you don't know how to connect to IRC, visit the following page: Connecting to IRC
Connect
You can connect to your shell using this unix command:
ssh username@yunix.net -p 666
Windows users can use this tutorial to get connected: Using Putty for Windows users
