Tente usar as torsocks com base em tsocks proxifier para o Tor:
# dpkg -l torsocks
ii torsocks 1.2-3 amd64 use SOCKS-friendly applications with Tor
# torsocks ssh user@server
#Enter a password
# Welcome !
shell:~/$ who
me pts/16 2013-08-31 22:41 (tor2.tedesca.net)
Eu sou de: tor2.tedesca.net