Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!wuarchive!zazen!uwvax!poona.cs.wisc.edu!hollings From: hollings@poona.cs.wisc.edu (Jeff Hollingsworth) Newsgroups: comp.unix.internals Subject: Re: Wizard-level questions Message-ID: <1991Feb4.160801.2836@spool.cs.wisc.edu> Date: 4 Feb 91 16:08:01 GMT References: <1991Jan26.142403.22812@mp.cs.niu.edu> <120574@uunet.UU.NET> <5653@auspex.auspex.com> <120840@uunet.UU.NET> Sender: news@spool.cs.wisc.edu (The News) Reply-To: hollings@poona.cs.wisc.edu (Jeff Hollingsworth) Organization: University of Wisconsin--Madison Lines: 16 |> Actually, only the network part of the info is truly reliable. |> Someone with a PC could wait until a well known trusted host |> is down for backups or maintenance or whatever, claim to be it, |> and the only way the rest of the net would know is if they cared |> about the ARP mapping between ethernet address and IP address. |> -- |> Many/most Ethernet boards let you set their address too, so you can't even trust that information. The only answer is to use an authentication system like Kerberos. ------------------------------------------------------------------------------- Jeff Hollingsworth Work: (608) 262-6617 Internet: hollings@cs.wisc.edu Home: (608) 256-4839 X.400: