Date: Sat, 9 Mar 2002 19:27:52 +0200 From: Giorgos Keramidas <keramida@ceid.upatras.gr> To: Steve Tremblett <sjt@cisco.com> Cc: Steven Lake <raiden@shell.core.com>, freebsd-questions@freebsd.org Subject: Re: Selectively forbidding login Message-ID: <20020309172752.GI15318@hades.hell.gr> In-Reply-To: <20020308181812.A8403@sjt-u10.cisco.com> References: <Pine.GSO.4.44L0.0203081657180.5259-100000@shell.core.com> <20020308181812.A8403@sjt-u10.cisco.com>
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On 2002-03-08 18:18, Steve Tremblett wrote:
> I believe a user will be allowed FTP login if their shell is in
> /etc/shells. I'm not %100 sure on what nologin does (not on a FreeBSD
> box right now), but I'm guessing that if it is a shell that is made up
> of something like "int main() { return 0; }" it should be safe to put
> in /etc/shells.
It's very easy to find out:
hades:~$ file /sbin/nologin
/sbin/nologin: Bourne shell script text executable
hades:~$ grep -v '^#' /sbin/nologin
echo 'This account is currently not available.'
exit 1
But even if it wasn't a shell script, you can read the source at
/usr/src/sbin/nologin. The wonders of Open Source :)))
Giorgos Keramidas FreeBSD Documentation Project
keramida@{freebsd.org,ceid.upatras.gr} http://www.FreeBSD.org/docproj/
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