Date: Sat, 5 May 2001 15:45:52 -0700 From: Kris Kennaway <kris@obsecurity.org> To: Stephen Montgomery-Smith <stephen@math.missouri.edu> Cc: Lauri Laupmaa <mauri@inspiral.net>, stable@FreeBSD.ORG Subject: Re: ISN number prediction ? Message-ID: <20010505154552.A60002@xor.obsecurity.org> In-Reply-To: <3AF47E4A.4A54EB0C@math.missouri.edu>; from stephen@math.missouri.edu on Sat, May 05, 2001 at 05:27:22PM -0500 References: <3AF46C50.640F6C20@inspiral.net> <3AF47E4A.4A54EB0C@math.missouri.edu>
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--AhhlLboLdkugWU4S Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Sat, May 05, 2001 at 05:27:22PM -0500, Stephen Montgomery-Smith wrote: > Lauri Laupmaa wrote: > >=20 > > Hi > >=20 > > As this analysis http://razor.bindview.com/publish/papers/tcpseq.html p= oints > > out FreeBSD 4 ISN number generation 'is not impressive' It seems to be > > considerably weaker than linux-2.2's... > >=20 >=20 > I remember that if you run the program nmap on your server with the > right flags, that it will give its opinion on how good this is. > But I don't remember the right sequence of flags to do this - anyone > care to help me? Please remember that this is a complicated issue which can't be easily quantified with a single number; nmap can be used as a guide to sequence number predictability, but it's not the whole story. Kris --AhhlLboLdkugWU4S Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.5 (FreeBSD) Comment: For info see http://www.gnupg.org iD8DBQE69IKfWry0BWjoQKURAuLaAKCaS6ORUnb2hZ2wDnKq0aT3q4RWGgCg7r/7 tDnFUisFtXR9lhhVTISMA+8= =pafb -----END PGP SIGNATURE----- --AhhlLboLdkugWU4S-- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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