From owner-freebsd-bugs@FreeBSD.ORG Wed Apr 3 12:10:01 2013 Return-Path: Delivered-To: freebsd-bugs@smarthost.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.FreeBSD.org [8.8.178.115]) by hub.freebsd.org (Postfix) with ESMTP id DF6766C3 for ; Wed, 3 Apr 2013 12:10:01 +0000 (UTC) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (freefall.freebsd.org [IPv6:2001:1900:2254:206c::16:87]) by mx1.freebsd.org (Postfix) with ESMTP id D0943A62 for ; Wed, 3 Apr 2013 12:10:01 +0000 (UTC) Received: from freefall.freebsd.org (localhost [127.0.0.1]) by freefall.freebsd.org (8.14.6/8.14.6) with ESMTP id r33CA1Ib059997 for ; Wed, 3 Apr 2013 12:10:01 GMT (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.14.6/8.14.6/Submit) id r33CA1QR059996; Wed, 3 Apr 2013 12:10:01 GMT (envelope-from gnats) Date: Wed, 3 Apr 2013 12:10:01 GMT Message-Id: <201304031210.r33CA1QR059996@freefall.freebsd.org> To: freebsd-bugs@FreeBSD.org Cc: From: Maxim Konovalov Subject: Re: conf/177607: named.conf comment to slave root suggests potentially dangerous BIND configuration X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list Reply-To: Maxim Konovalov List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 03 Apr 2013 12:10:01 -0000 The following reply was made to PR conf/177607; it has been noted by GNATS. From: Maxim Konovalov To: Mark Knight Cc: bug-followup@freebsd.org Subject: Re: conf/177607: named.conf comment to slave root suggests potentially dangerous BIND configuration Date: Wed, 3 Apr 2013 16:03:04 +0400 (MSK) Hello, [...] > >Description: > > The comment in the default named.conf encourages users to slave the root but does not provide > an example configuration that prevent a name server being used as an amplifier in DDOS attacks. > Users who adopt this configuration by uncommenting the supplied entries are likely to receive > abuse reports or be unwitting participants in a DDOS attack. > >How-To-Repeat: > Uncomment zone "." entry and then run dig -t ns @x.x.x.x . from the Internet. With the "listen-on { 127.0.0.1; };" at the line 22 it won't hurt anybody. If you are going to change this setting than you have more work to secure your named server. -- Maxim Konovalov