Date: Sun, 12 Sep 1999 21:10:47 -0400 (EDT) From: Garrett Wollman <wollman@khavrinen.lcs.mit.edu> To: Dag-Erling Smorgrav <des@flood.ping.uio.no> Cc: nate@mt.sri.com (Nate Williams), Ben Smithurst <ben@scientia.demon.co.uk>, "Jeremy L. Ramirez" <jramirez@digicomsystems.net>, dev-null@ns1.digicomsystems.net, freebsd-questions@FreeBSD.ORG, freebsd-security@FreeBSD.ORG Subject: Re: How to prevent motd including os info Message-ID: <199909130110.VAA27314@khavrinen.lcs.mit.edu> In-Reply-To: <xzpiu5g13hg.fsf@flood.ping.uio.no> References: <4.2.0.58.19990911151659.00aa8d60@ns1.digicomsystems.net> <19990912012524.B41509@lithium.scientia.demon.co.uk> <xzpn1usmka2.fsf@flood.ping.uio.no> <199909121534.JAA18584@mt.sri.com> <xzpzoys15dn.fsf@flood.ping.uio.no> <xzpiu5g13hg.fsf@flood.ping.uio.no>
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<<On 12 Sep 1999 18:47:23 +0200, Dag-Erling Smorgrav <des@flood.ping.uio.no> said: > +tcp_drop_synfin="NO" # Set to YES to drop TCP packets with SYN+FIN > + # NOTE: this breaks rfc1644 extensions (T/TCP) No, it breaks TCP, period, regardless of RFC 1644. Christmas-tree segments are perfectly valid in TCP (i.e., SYN URG PSH FIN). -GAWollman -- Garrett A. Wollman | O Siem / We are all family / O Siem / We're all the same wollman@lcs.mit.edu | O Siem / The fires of freedom Opinions not those of| Dance in the burning flame MIT, LCS, CRS, or NSA| - Susan Aglukark and Chad Irschick To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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