Re: Can SSH Default to Different Usernames Based on Remote Host?

[Roel Schroeven <rschroev_nospam_ml@fastmail.fm>]

Jeff Stevens wrote:

> Suppose I am working with three machines.  I'm logged into host
> "workstation" and I would like to ssh to hosts "remote0" and "remote1".
> "id_dsa" and "id_dsa.pub" exist on "workstation".  I've added
> "id_dsa.pub" from "workstation" to "authorized_keys2" on hosts "remote0"
> and "remote1".  I've used "ssh-add" on "workstation" to add my private
> key to the ssh agent.  Nothing unusual here.  Just wanted to be
> detailed.
>
> Let's say my username on "workstation" is "jeff".  My username on
> "remote0" is also "jeff", however my username on "remote1" is "foo".
>
> I can "ssh remote0" and am able to log in without further prompting.
> All works well.  On the other hand, I have to specify my username in
> "ssh foo@remote1" when connecting to "remote1".  This is, of course,
> because my username on "workstation" and "remote1" differ.
>
> I'm curious if there is a way I can configure ssh to automatically use
> the username "foo" when connecting to "remote1".

Yes; refer to the manpage for ssh_config. In short, create 
$HOME/.ssh/config with an entrie like

Host remote1
User foo

Of course, as you can see in the manpage you can specify a whole range 
of options, not just the username.

--
If I have been able to see further, it was only because I stood
on the shoulders of giants.  -- Isaac Newton

Roel Schroeven