From owner-freebsd-questions Tue Apr 11 13:47:55 2000 Delivered-To: freebsd-questions@freebsd.org Received: from satan.freebsdsystems.com (24.69.168.6.on.wave.home.com [24.69.168.6]) by hub.freebsd.org (Postfix) with ESMTP id 88D3437B625 for ; Tue, 11 Apr 2000 13:47:51 -0700 (PDT) (envelope-from lnb@satan.freebsdsystems.com) Received: (from lnb@localhost) by satan.freebsdsystems.com (8.9.3/8.9.3) id QAA17948; Tue, 11 Apr 2000 16:50:04 -0400 (EDT) (envelope-from lnb) Message-ID: X-Mailer: XFMail 1.4.0 on FreeBSD X-Priority: 3 (Normal) Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 8bit MIME-Version: 1.0 In-Reply-To: <200004111907.OAA00656@shell.jeah.net> Date: Tue, 11 Apr 2000 16:50:04 -0400 (EDT) Organization: FreeBSD Systems Inc. From: Lanny Baron To: Chris Byrnes Subject: RE: Problem. your problem with date and dos attacks Cc: freebsd-questions@FreeBSD.ORG Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Hi, run date with the actual date and time.. example date 200004111433 that will set the date to april 10 2000 2:43 pm e.s.t. and do it as ROOT As for the dos attacks... rebuild your kernel with the following... options ICMP_BANDLIM #Rate options TCP_DROP_SYNFIN #drop TCP packets with SYN+FIN options TCP_RESTRICT_RST #restrict emission of TCP RST -lnb On 11-Apr-00 Chris Byrnes wrote: > My FreeBSD box received tons of DOS attacks over the last few days and was > off the net for awhile. > > It's back now, but... > > Apr 11 14:02:57 shell xntpd[137]: time error 3602.928795 is way too large > (set clock manually) > > It didnt adjust for DST, either. > > Any ways to force xntpd to do the update? > > > Chris > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-questions" in the body of the message Lanny Baron, Master FreeBSD Administrator ---------------------------------- Date: 11-Apr-00 Time: 16:50:04 "Contrary to popular belief, penguins are not the salvation of modern technology. Neither do they throw parties for the urban proletariat." ---------------------------------- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message