August 13th, 2003 - Migration to OpenSSH

1. OpenSSH uses the ~/.ssh directory for your configuration files and keys while SSH2 used ~/.ssh2. However, earlier versions of SSH from ssh.com that were installed on the CS systems also used the ~/.ssh directory so it is quite possible you have an old ~/.ssh directory. In order to prevent conflicts with OpenSSH, you are strongly encouraged to move the old .sshd directory out of the way. You can do this by running:

   mv ~/.ssh ~/.ssh.old

2. You will need to recreate your keypair and authorized_keys files using OpenSSH. In order to do this, you should follow the procedure outlined in the OpenSSH FAQ Entry

3. If you access group and class accounts using ssh, this authorization will have to be reinitialized. Unfortunately, this reauthorization cannot be done until you recreate your ssh keys. So, once you complete step 2 above you will need to submit a request to the CSG Helpdesk to have your access reestablished.

4. If you have a console/GUI login from before August 13th, your login session is probably running under the old ssh-agent. As a result, if you had your ssh keys loaded (via ssh-add) you will have to logout and back in again to get the new ssh-agent before you will be able to ssh to remote systems without being prompted for a password.

If you have problems related to this change, please submit a request for help using the CSG Help Desk.

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