Leopard, SSH-agent and Macports
Recently my friend and colleague Travis Cline was helping me re-set up my SSH configuration in a more secure manner. Particularly we were enabling agent forwarding.
I don’t claim to know anything about SSH or agent forwarding — you’ll need a friend like Travis or a Google search to help you there. But I do know that the agent forwarding was not working. We kept finding discrepancies about when the Mac OS X SSH was being used and when the Macports one was, and it kept things from working properly.
A Google search for “Agent Forwarding with MacPorts” led us to the life-saving tip. Now things are working without issue.