Date: Mon, 15 Jan 1996 16:29:22 -0500 From: "Garrett A. Wollman" <wollman@lcs.mit.edu> To: Robert Sanders <rsanders@mindspring.com> Cc: freebsd-current@freebsd.org Subject: Re: finger problem going from 2.1R to -current Message-ID: <9601152129.AA11297@halloran-eldar.lcs.mit.edu> In-Reply-To: <199601152121.QAA29362@interbev.mindspring.com> References: <199601152017.PAA28876@interbev.mindspring.com> <Pine.BSF.3.91.960115125532.20064d-100000@apollo.COSC.GOV> <9601152109.AA11052@halloran-eldar.lcs.mit.edu> <199601152121.QAA29362@interbev.mindspring.com>
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<<On Mon, 15 Jan 1996 16:21:33 -0500, Robert Sanders <rsanders@mindspring.com> said: > Yeah, the T/TCP changes just recently got put into the tree. I guess > the importance of T/TCP for this is that it can save, what, one round > trip per finger connection? I think it is slightly more useful in that it can point out all the different vendors with seriously broken TCP implementations. > What confuses me is that, though I > haven't read rfc1644 or the kernel source, I thought that T/TCP would > properly cope with hosts that didn't want to cooperate. T/TCP works perfectly with hosts that correctly implement TCP but don't implement T/TCP. When the target host does not correctly implement even basic TCP, then all bets are off. /That/ is the situation we are presently encountering. > Otherwise, it seems that the default settings for both rfc* sysctl > options should be off. No, they should not. > TCP extensions just seem to cause trouble for > the Average Joe. I doubt it. In any case, somebody has to keep the commercial vendors honest. The correct response to this problem is to complain to the vendors who made the broken software. (You might point them at an RFC---I forget its number---entitled ``TCP and IP bake-off''.) -GAWollman -- Garrett A. Wollman | Shashish is simple, it's discreet, it's brief. ... wollman@lcs.mit.edu | Shashish is the bonding of hearts in spite of distance. Opinions not those of| It is a bond more powerful than absence. We like people MIT, LCS, ANA, or NSA| who like Shashish. - Claude McKenzie + Florent Vollant
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