I am using my personal MacBook to connect to a server at work using SSH. I am also using public/private key authentication so no password needs to be entered. However, for extra security, I did add pass-phrase to the private key on my MacBook. The problem is that the first time I SSH'ed into the server I got a pop-up window asking me for my pass-phrase, but after that I don't get the prompt, and I want to be prompted for it every time!! Someone told me this is a caching issue on my MacBook. Any ideas?