Date: Mon, 2 Jan 2017 21:50:51 -0700 (MST) From: Warren Block <wblock@wonkity.com> To: Maxim Konovalov <maxim.konovalov@gmail.com> Cc: Warren Block <wblock@FreeBSD.org>, doc-committers@freebsd.org, svn-doc-all@freebsd.org, svn-doc-head@freebsd.org Subject: Re: svn commit: r49600 - head/en_US.ISO8859-1/books/handbook/firewalls Message-ID: <alpine.BSF.2.20.1701022145290.98030@wonkity.com> In-Reply-To: <alpine.BSF.2.20.1701021904430.83306@mp2.macomnet.net> References: <201610281531.u9SFVL7u096914@repo.freebsd.org> <alpine.BSF.2.20.1701021904430.83306@mp2.macomnet.net>
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On Mon, 2 Jan 2017, Maxim Konovalov wrote: > Hi Warren, > > On Fri, 28 Oct 2016, 15:31-0000, Warren Block wrote: > > [...] >> # Allow outbound NTP >> -$cmd 00260 allow tcp from any to any 37 out via $pif setup keep-state >> +$cmd 00260 allow udp from any to any 123 out via $pif setup keep-state >> >> # Allow outbound SSH >> $cmd 00280 allow tcp from any to any 22 out via $pif setup keep-state >> > Are you sure about this change? NTP is UDP based protocol. In the > same time "setup" is TCP only feature (why ipfw(8) allows it to use in > conjunction with the UDP proto is a different story) > > I think the comment is what should be fixed here. https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=213365 suggested merely changing this to UDP 123. I don't use IPFW, so can't verify the actual usage. Help would be appreciated.
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