in reply to Re^7: SSH daemon in Perl?
in thread SSH daemon in Perl?

Yes, that's the kind of of functionality I would like. Connect to the server and execute the program (as the service user) without checking whether $USER (sent by the SSH client) exists.

However, the OpenSSH server doesn't seem to have options for this. Or does it?

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Re^9: SSH daemon in Perl?
by soonix (Chancellor) on Jun 26, 2016 at 21:36 UTC
    Don't know enough to help with OpenSSH server config. However, the main problem I see is: you want this on port 22.
    • this will interfere with "normal" ssh login (which also uses port 22) for that machine
    • Port 22 is privileged, you need root for this
    You could take the approach many git servers do: the user named "git" has a special shell allowing only specific operations (that would correspond to your script). Since you need to be root anyway(*), this looks like the easier approach. Your users then connect 
    ssh yourserviceuser@yourhost

    [download]
    and if your script needs their "real" credentials, it can ask them (or, like git, distinguishes them by their SSH key).

    (*)Update: for configuration, not for running it

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