Mac OS X, ssh and X11 forwarding

Well it was my turn to go through this struggle. Once you have problems you'll see that so many others have had problems with getting ssh public key ("no password") connections and then X11 forwarding working. Next I'll get port forwarding through ssh working. That can be the subject of a later post.

Here are my notes for problem solving.

References

• man ssh_config
• man sshd_config
• Mac OS X man ssh
  
• http://www.stocksy.co.uk/articles/Mac/ssh_on_mac_os_x/
• DYHR.com - How to enable X11 Forwarding with ssh on macosx
  
• Or see Google search for "macosx ssh" - there are millions of pages on how to do this

Troubleshooting
Permissions

• Permission on ~/.ssh/authorized_keys OR ~/.ssh/authorized_keys2 needs to be 0600

Found at http://ubuntuforums.org/archive/index.php/t-477374.html, http://www.macosxhints.com/article.php?story=20080424055927442

• Permission on ~/.ssh needs to be 0700

Found at http://sial.org/howto/openssh/publickey-auth/problems

X11 forwarding

• I had to remove the references in home.bashrc that sets $DISPLAY as the sshd does that

Found at http://dyhr.com/2009/09/05/how-to-enable-x11-forwarding-with-ssh-on-mac-os-x-leopard/