Form wiki it explain ssh as: http://en.wikipedia.org/wiki/Secure_Shell
“Secure Shell or SSH is a network protocol that allows data to be exchanged over a secure channel between two computers. Encryption provides confidentiality and integrity of data. SSH uses public-key cryptography to authenticate the remote computer and allow the remote computer to authenticate the user, if necessary. SSH is typically used to log into a remote machine and execute commands”

Before using the ssh, you will need to verify yourself with photo ic. Login to cpanel, and go to ssh section. You will be asked to fax in photo id to cirtexhosting for verification. Once its done, you will gain access to cirtex server through ssh. You can use software like PuTTy to perform the ssh and telnet command.

Go to Cirtexhosting.com