linkback: http://www.karan.org/blog/index.php/2009/08/25/multiple-ssh-private-keys
ssh-keygen -t rsa -f ~/.ssh/id_rsa.acquia -C "Key for my Acquia accounts" touch ~/.ssh/config chmod 600 ~/.ssh/config
~/.ssh/config looks like this :
Host *acquia* IdentityFile ~/.ssh/id_dsa.home User jbarnett Host *babson* IdentityFile ~/.ssh/id_rsa.work User jbarnett Port 44787