Date: Fri, 7 Feb 1997 11:15:52 +0100 (MET) From: W.Belgers@nl.cis.philips.com (Walter Belgers) To: terry@lambert.org (Terry Lambert) Cc: freebsd-hackers@FreeBSD.ORG Subject: Re: NIS/uids Message-ID: <199702071015.LAA03051@giga.lss.cp.philips.com> In-Reply-To: <199702062116.OAA17845@phaeton.artisoft.com> from Terry Lambert at "Feb 6, 97 02:16:58 pm"
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Terry Lambert writes: > > > > Let's assume I do not trust the uid's coming from the NIS server but I > > > > still do want to use NIS (for passwd/homedir/gecos/whatever). > > > > Couldn't I add the user to "wheel" or "kmem" in the NIS groups file > anyway? If I do not override the gid in the local password file, a user could indeed put himself in wheel and be in wheel on my local machine as well. > I still like the idea of a list of groups and uids that won't be > honored via NIS. Or maybe make an exception for uid 0. > > I have no "+" in my password file, only "+user", so you can only hack > > those users, not the users that are only locally in my password file. So > > it does give the desired protection. > > Do you do "+group" in the group file, as well? I suppose you have to... No, I don't mind wether or not all gids are in the group file. If a NIS user is in group 999 which doesn't locally exists, so be it. > Terry Lambert Walter. -- Ir. W.H.B. Belgers, Internet Security Specialist phone: +31 40 2782753 Origin IT Syst.Man. /Nederland bv, Bldg VN-513 email: fax: +31 40 2784697 P.O. Box 218, 5600 MD Eindhoven, Netherlands W.Belgers@nl.cis.philips.com non-business-email: walter@giga.nl & -web: http://www.IAEhv.nl/users/gigawalt
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