Date: 05 Dec 2002 02:25:44 -0500 From: Lowell Gilbert <freebsd-stable-local@be-well.no-ip.com> To: stable@freebsd.org Subject: Re: DNS query from public IP though localhost specified Message-ID: <444r9t9bbb.fsf@be-well.ilk.org> In-Reply-To: <20021204104103.F56412@oolong.il.thewrittenword.com> References: <20021204104103.F56412@oolong.il.thewrittenword.com>
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Albert Chin <freebsd-stable@thewrittenword.com> writes: > I have a multihomed FreeBSD 4.6-STABLE box with two public IPs on xl0 > and one private IP on xl1. The hostname corresponds to the private IP > on xl1. This box acts as a nameserver running BIND 9.2.1 and > /etc/resolv.conf is configured as: > search [internal domain] [external domain] > nameserver 127.0.0.1 > > If I try to ssh to this host from another box and have "tcpdump -i > lo0" running, I get tcpdump output indicating: > 18:16:48.342762 [public hostname].1572 > [public hostname].domain: 19465+ PTR? [rev internal ip].in-addr.arpa. (43) > 18:16:48.343292 [public hostname].domain > [public hostname].1572: 19465 Refused 0/0/0 (43) > 18:16:48.346175 localhost.[internal domain].1573 > localhost.[internal domain].domain: 12661+ PTR? [rev internal ip].in-addr.arpa. (43) > 18:16:48.346555 localhost.[internal domain].domain > localhost.[internal domain].1573: 12661* 1/1/1 PTR[|domain] > > It seems that only ssh causes this behaviour. ftpd causes only > localhost lookups. > > So, why am I seeing queries from the public IP on xl0 while listening > on lo0 Why do you care? It doesn't make any difference which IP address it uses. The important thing is that it's on the correct interface. [which it is] To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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