Matching username in ssh_config

Iain Morgan imorgan at
Wed Jun 19 07:35:02 EST 2013

On Tue, Jun 18, 2013 at 05:33:16 -0500, Anton Lundin wrote:
> Hi all openssh devs out there.
> I have quite a few Host-stanzas in my .ssh/config to keep track of all the
> different settings and credentials needed to access all different hosts I
> connect to.
> Now I have ran in to a problem where I need to switch settings based on what
> user I'm trying to login to a host as. A simple case is:
> ssh -i rootkey root at host123
> vs. 
> ssh -i userkey username at host123
> Up until now I have just used a stanza like
> Host host123
>  User username
>  IdentityFile userkey
> But it would be awesome of it was possible to add before that, eg fist
> match as all other blocks, a stanza looking like:
> Host root at host123
>  IdentityFile rootkey
> So when I type:
> "ssh host123" it resolves to equivalent of "ssh -i userkey username at host123"
> And when i type:
> "ssh root at host123" it would resolve to "ssh -i rootkey root at host123"
> Does this sound reasonable to the rest of you?
> //Anton
> Ps.
> Please keep me on Cc, I'm not subscribed to the list.

What about using %r when you specify IdentityFile?
Iain Morgan

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