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List:       freebsd-hackers
Subject:    Re: sshd & pam & getpwnam()
From:       Danny Braniss <danny () cs ! huji ! ac ! il>
Date:       2004-06-29 6:39:28
Message-ID: 20040629063937.4D16843D31 () mx1 ! FreeBSD ! org
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>  Sun, Jun 20, 2004 at 14:52:35, zagarin wrote about "sshd & pam & getpwnam()": 
> 
> > 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.
> 
> Because you mix two different things - users directory (in modern unixes
> including 5.* it is implemented as NSS) and authentication (implemented as PAM).
> To log in with sshd, user must be known in passwd database; if sshd would
> enable user to log in without account, this won't be sshd, but will be
> anything another.
> 
> To allow remote user lists, use NIS; for now it is the only working
> and well-tested mechanism to spread user list (passwd.*) for many systems.
> See "YP/NIS INTERACTION" in passwd(5) for details.
> 

not 100% true, dns/hesiod works great.

my 5 cents,
	danny

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