up vote 6 down vote favorite
1
share [g+] share [fb]

I want to connect to a host via SSH but I don't want the hostname to be added to my ~/.ssh/known_hosts.

How can I do that?

link|improve this question
78% accept rate
feedback

2 Answers

up vote 5 down vote accepted 
-o "UserKnownHostsFile /dev/null"

should work.

link|improve this answer
Works as intended, but it will always report: "Warning: Permanently added 'hostname,ip' (RSA) to the list of known hosts." I made that go away with: 2>&1 | grep -v "^Warning: Permanently added" – Guillaume Boudreau May 18 '11 at 17:34
feedback
up vote 2 down vote

Have you tried disabling StrictHostKeyChecking? You can do it with the -o option or in the configuration file ~/.ssh/config.

link|improve this answer
I'm already using that. But it has a different effect: It loweres the strictness for the host key checking. I.e. when the host is unknown, it still connects when you disable that option. Thus, it still saves the host. But I think I have found the right solution (see my answer). – Albert May 15 '10 at 0:29
feedback

Your Answer

 
or
required, but never shown
discard

Not the answer you're looking for? Browse other questions tagged or ask your own question.