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Re: simulate connection with netcat

When you try to connect to a SSH Server it exchanges a session key, you would have to give that to the server before authentication.
Like Salva said, it's far more complicated than that.

Best Regards

Felipe Martins
Security Analyst

Skype: martins.felipe
URL: http://www.felipemartins.info/
E-mail: martins.felipe.security@xxxxxxxxx

On 17/01/2011 15:43, Salvador Fandino wrote:

----- Original Message ----
From: "guy@xxxxxxxxx"<guy@xxxxxxxxx>
To: secureshell@xxxxxxxxxxxxxxxxx
Sent: Sat, January 15, 2011 9:19:15 PM
Subject: simulate connection with netcat


my long-term intention is to write a cross-platform  GUI-authpf-client
without using libssh or libssh2. Before I get into that I'd  like to simulate
the ssh-connection/authentication via netcat.
I took a  look at the RFCs but don't get it working.

% nc  22
SSH-2.0-OpenSSH_5.2<--  entered by me
... a lot of text ...

What do I enter now to  authenticate?
My attempts resulted in "Packet  corrupt".
SSH uses a binary protocol. Getting authenticated is far more complex than
writting something at your keyboard by hand.

You can find pointers to the related RFCs here:

- Salva

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