Typos etc.
Fragment of a discussion from User talk:Purodha
You can use "ssh-add" to avoid retyping the passphrase.
How would I do that? :-( seems not to work on several hosts. man ssh-add does not enlighten me enough.
$ ssh-add -t 600 ~/.ssh/id_rsa Could not open a connection to your authentication agent. $
I don't know. I just type "ssh-add" on my machine.
That was my 1st try - yielding the same error message.