nick@nostradamus:~/prog$ ssh -v mabus.sytes.net -p 21
OpenSSH_4.1p1 Debian-7ubuntu4.1, OpenSSL 0.9.7g 11 Apr 2005
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: Applying options for *
debug1: Connecting to mabus.sytes.net [24.222.107.246] port 21.
debug1: Connection established.
debug1: identity file /home/nick/.ssh/identity type -1
debug1: identity file /home/nick/.ssh/id_rsa type -1
debug1: identity file /home/nick/.ssh/id_dsa type -1
ssh_exchange_identification: Connection closed by remote host