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- Path: sparky!uunet!mcsun!uknet!gdt!bsmail!smee
- From: smee@bristol.ac.uk (Paul Smee)
- Newsgroups: comp.security.misc
- Subject: Re: New "official" motd
- Message-ID: <1992Dec16.103121.17951@bristol.ac.uk>
- Date: 16 Dec 92 10:31:21 GMT
- References: <1992Dec14.164652.13388@cc.ic.ac.uk>
- Reply-To: P.Smee@bristol.ac.uk (Paul Smee)
- Organization: University of Bristol
- Lines: 38
-
- In article <1992Dec14.164652.13388@cc.ic.ac.uk> cmaae47@imperial.ac.uk writes:
- >But maybe you display the notice BEFORE people log in, as we do here, viz:
- >
- >====================================================
- >IRIX System V.3 (cscmgb)
- >
- >Imperial College of Science, Technology and Medicine
- >
- > Centre for Computing Services
- >
- > This computer system is operated on behalf of
- > Imperial College
- >
- >Only authorised users are entitled to connect and/or
- >log in to this computing system. If you are not sure
- > whether you are authorized, then you are not and
- > should DISCONNECT IMMEDIATELY.
- >
- >====================================================
- >
- >It also comes out for ftp connects, and is meant to rob hackers of the
- >excuse that they saw a "welcome to the xxxx system" and therefore assumed
- >they were authorised to use it.
-
- We thought about this idea, then rejected it. I favoured such a
- banner, but our management glommed it on grounds that we've got a lot
- of networked machines that cannot be made to display such messages, and
- a lot of contexts (e.g. NFS exports) where you can't inject such a
- message. Their fear was that if, say 50% of machines/contexts put out
- such a message, that might (in legal terms) allow crackers to 'assume'
- that the unposted machines were explicitly fair game -- after all, if
- they weren't fair game, they'd have put out a warning as well. Anyone
- know what the actual legal position is here? (UK legal position most
- useful, but others would be interesting.)
-
- --
- Paul Smee, Computing Service, University of Bristol, Bristol BS8 1UD, UK
- P.Smee@bristol.ac.uk - ..!uunet!uknet!bsmail!p.smee - Tel +44 272 303132
-