ssh while ssh-agent is running

[Damien Miller]

On Mon, 30 Sep 2024, Sam Darwin wrote:

> Hi,
> I run into a certain problem from time to time.
> 
> 1. Configure and launch ssh-agent.
> 2. That's usually perfect.
> 3. Occasionally, connect to a different and less common remote server.
>  Use ssh -i keyfile
> 4. ssh -i keyfile fails.  Because ssh-agent doesn't know about that key.
> 
> If you are specifying a key "-i key", then you are specifying a key, and
> clearly don't need to use the keys from ssh-agent. Could ssh prefer the key
> from the command line? Give that precedence, over using the ssh-agent keys?

ssh should do this already. Please post a debug trace "ssh -vvv ..."
and we'll be able to see what broke.