On Sun, 20 Jun 2004, Alexey Zagarin wrote:

Hello!

Does anybody know, why sshd call getpwnam() even if user is authenticating via PAM? This broke remote authentication (RADIUS, TACACS+) when user doesn't exist in local password database.

This is typical behavior for most account based PAM applications I've seen.

        sshd in particular expects the user to have an system account,
        even if the user has already been auth'd via PAM.  It makes sense
        from sshd's standpoint because it must read information from the
        users home directory (which it gets from getpwnam).

        On another note, I've yet to understand why PAM aware applications
        don't do a pam_get_user (or equivalent) after PAM authentication
        has been accepted as the PAM module.  This would allow the PAM
        module to say "user 'bob' you are authenticated, but your REAL
        username should be 'id02345'".  Sort of a username substitution.
        I've had to patch the stock FTP server and c-client to do
        this exact thing on our servers at work.


Nick Rogness <[EMAIL PROTECTED]> - How many people here have telekenetic powers? Raise my hand. -Emo Philips

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