Date: Tue, 27 Jul 1999 14:51:34 -0500 (CDT) From: Joe Greco <jgreco@ns.sol.net> To: nate@mt.sri.com (Nate Williams) Cc: jgreco@ns.sol.net, nate@mt.sri.com, julian@whistle.com, green@FreeBSD.ORG, dillon@apollo.backplane.com, hackers@FreeBSD.ORG, freebsd-ipfw@FreeBSD.ORG Subject: Re: securelevel and ipfw zero Message-ID: <199907271951.OAA13451@aurora.sol.net> In-Reply-To: <199907271917.NAA26828@mt.sri.com> from Nate Williams at "Jul 27, 1999 1:17: 5 pm"
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> > > > I like the ability at secure level 3 to only reset the counters forward.. > > > > It fits in with such things as the "append only" flag. > > > > > > Then we'd have to implement per-rule counters that default to > > > IPFW_VERBOSE_LIMIT but that could be changed to anything. That's a very > > > different setup than what we currently have. > > > > > > (Another thing I just thought of is that this could cause DoS attacks on > > > the system if a user compromised root and then set the limit to a very > > > high number.) > > > > This is already possible via sysctl, the VERBOSE_LIMIT variable may be > > altered. > > Can this be altered in securelevel==3? # sysctl -a|grep secur kern.securelevel: 3 # sysctl -a|grep verbo net.inet.ip.fw.verbose: 1 net.inet.ip.fw.verbose_limit: 0 # sysctl -w net.inet.ip.fw.verbose_limit=999 net.inet.ip.fw.verbose_limit: 0 -> 999 "Any more questions?" :-) ... Joe ------------------------------------------------------------------------------- Joe Greco - Systems Administrator jgreco@ns.sol.net Solaria Public Access UNIX - Milwaukee, WI 414/342-4847 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-ipfw" in the body of the message
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