OpenSSH Key Storage

Nicolas Williams Nicolas.Williams at
Tue Feb 5 02:51:29 EST 2002

On Mon, Feb 04, 2002 at 04:40:21PM +0100, Andersson, Mats wrote:
> On Mon, 4 Feb 2002, Nicolas Williams wrote:
> > IMHO, the issue is dealing with forwarded sshd's. So the client really
> > ought to have a separate option for specifying the name of the
> Ok, I thought the issue was with different servers on different ports on
> same host. Forwarded servers seems to be handled by the alias function
> which is in openssh allready? (forwarded servers != servers at different
> ports).

Sorry, what exactly is the difference, from the client's point of view,
between forwarded servers and multiple servers on one host with
different port numbers?

If anything, the expectation that known host key names relate to
hostnames as resolvable through the name services (e.g., DNS) is the
thing that leads to any difference.

I.e., the multiple servers on one host on multiple ports will all be
expected to have the same name because it's one host(*).

But the name is really a functional name. So, allowing a separation of
host key name from hostname/port makes sense. If the ports in question
are dynamically obtained for different runs then what other option is
there? Dynamically updating known host keys / aliases?

(*) ignore multi-homing for this.

> Cheers,
> /Mats


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