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Open ssh connection through proxy with NTML authentication

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Here is the explanation of how to pass a ssh connection through a proxy that use NTLM authentication protocol (cryptographic authentication) instead of a plain login/password authenication.

First follow the steps describes here :
http://blog.mansonthomas.com/2008/01/open-ssh-connection-through-http-proxy.html

Next we have to deal with NTLM authentication.

Putty do not know how to talk with proxy that use NTML authentication, so we need a soft that will handle the authentication and encapsulate the network packet.

To do that we'll use cntlm which is a port of an unix programms using cygwin (no need to make a insall of cygwin though...).

Once you unzip the files, edit the configuration file cntlm.ini

You have to change 4 values :

login: Your Windows login name
domain: Your domain name

You can get theses information by hitting CTRL+ALT+SUPPR, a window display and in the first fieldset you can see something like "Thomas Manson has opened a session as DOMAIN\LOGIN"

proxy url and port : …