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- Newsgroups: comp.sys.hp
- Path: sparky!uunet!mcsun!sunic!aun.uninett.no!ugle.unit.no!Steinar.Haug
- From: Steinar.Haug@delab.sintef.no (Steinar Haug)
- Subject: Re: Sun Vs. HP system administration
- In-Reply-To: alek@spatial.com's message of Thu, 27 Aug 1992 04:32:11 GMT
- Message-ID: <STEINAR.HAUG.92Aug27164938@delab.sintef.no>
- Sender: news@ugle.unit.no (NetNews Administrator)
- Organization: SINTEF DELAB, Trondheim, Norway.
- References: <1992Aug26.052741.24845@spatial.com>
- <STEINAR.HAUG.92Aug26161118@delab.sintef.no> <37274@sdcc12.ucsd.edu>
- <1992Aug27.043211.29758@spatial.com>
- Date: 27 Aug 92 16:49:38
- Lines: 36
-
- In article <1992Aug27.043211.29758@spatial.com>, alek@spatial.com writes:
- > I suspect Steinar is well aware of this. Physical security is a really
- > tough one, and there really is no easy solution today, although stuff
- > like Kerboros may help down the road. As you pointed out, giving a
-
- Yes, indeed, I am well aware of that... Yes, we have been wondering about
- using Kerberos, but that certainly doesn't solve all problems either. There
- are no "silver bullets" when it comes to security.
-
- > I think all Steiner was trying to point out is that Sun's YP implementation
- > is a bit better - preventing "off-site" users from rebinding your ypbind (is
- > this really possible - yuck!) and/or downloading your passwd file *is*
- > desireable. I understand that NIS+ tightens things up a lot. NFS exports
- > w/-root=machine is another (first level) attempt to slow down the bad guys.
-
- As far as I know, in earlier versions of SunOS it *was* possible to rebind
- the ypbind process at a machine with an RPC call. (What do you think the
- /usr/etc/yp/ypset program does?) That's why Sun changed the default
- behavior of ypbind (no rebinding allowed), and introduced explicit options
- (-ypsetme, -ypset) to help you if you really *needed* the possibility of
- changing the YP binding from the outside.
-
- I have (just now) verified that I can rebind the ypbind *on another HP*
- with ypset on my local workstation. As a normal user. Talk about gaping
- holes in security...
-
- > Bottom line: No system is entirely secure. But it's desireable IMHO to
- > add some security rather than throw one's hands up because a perfect job
- > is impossible.
-
- Couldn't agree more.
-
- Steinar Haug, system/networks administrator
- SINTEF DELAB, University of Trondheim, NORWAY
- Email: Steinar.Haug@delab.sintef.no,
- sthaug@idt.unit.no, steinar@tosca.er.sintef.no
-