Secure Computing: Configure SSH Protocol 2
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Windows
SecureCRT
If you are using Stanford's SecureCRT client from the Essential Stanford Software distribution, your client is already configured to use SSH version 2 and there are ready-made connections to the Elaine and Cardinal machines. ESS has further information on configuring SecureCRT.
Putty
There are two steps to ensuring that you are using SSH protocol 2 with Putty.
- Specify SSH in the Session configuration panel.
- Specify protocol 2 in the Connection:SSH panel.
It is recommended that you choose "2 only", however if you have compatibility problems with older servers you may need to choose "2" in order to fall back to protocol 1 when necessary.
Macintosh/Unix
MacSSH
MacSSH only supports SSH protocol 2. No configuration is necessary.
OpenSSH
OpenSSH defaults to using protocol 2 when possible, but will fall back to protocol 1 if the remote server requires it. If you wish, you can force OpenSSH to refuse to make connections using protocol 1 (recommended).
In your home directory, create a subdirectory named ".ssh" and within that create a file named "config" containing the line:
Protocol 2