openssh unix dev - Dec 2002 - [Bug 454] New: SSH doesn't consider distinguish ports for host-key verification

http://bugzilla.mindrot.org/show_bug.cgi?id=454

           Summary: SSH doesn't consider distinguish ports for host-key
                    verification
           Product: Portable OpenSSH
           Version: 3.4p1
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: enhancement
          Priority: P2
         Component: ssh
        AssignedTo: openssh-unix-dev at mindrot.org
        ReportedBy: foomzilla at fuhm.net


I have two SSH servers running on the same machine.
One is running on port 22 for standard logins; the other is running port 4005,
and is not run by root.

They both must have different host keys, as the sshd on port 4005 cannot (and
should not) be able to read the host keys for the standard sshd on port 22.

This all works fine, except that every time you connect, it complains that the
host key is wrong. I see that there is a configuration option
"hostkeyalias" that can be used to circumvent this problem, but that
is rather inconvenient, as i now need to type something like 'ssh -o
"hostalias=foo.bar.com:4005" foo.bar.com -p 4005'

What I think should happen:
Connecting on a non-standard port should include the port number in the hostname
automatically for hostkey lookup purposes, as in 'foo.bar.com:4005'. It
should probably also use the host:port name for host-specific configuration
option lookup.



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