From owner-freebsd-net@FreeBSD.ORG  Mon Aug 11 15:38:57 2008
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Date: Tue, 12 Aug 2008 01:08:46 +1000 (EST)
From: Ian Smith <smithi@nimnet.asn.au>
To: Onur Aslan <onuraslan@gmail.com>
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Cc: freebsd-net@freebsd.org
Subject: Re: Named Listen IP
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On Mon, 11 Aug 2008, Onur Aslan wrote:
 > I am using named for a ns server. Named listening all ips for my
 > machine. But when i reboot machine, my ppp network connecting after
 > started named. named doesn't listening my ppp network's ip. Do you
 > have a solution?

Assuming you have a fixed IP address when ppp comes up, specify that 
address in named's listen-on list.  When ppp has connected, assigned its 
addresses and set the default route, have ppp run an up-script that runs 
'/etc/rc.d/named restart'.

named will then see the ppp interface and listen on that address as well 
as any others specified, like localhost.  ppp runs its up/down scripts 
as root; you don't need (or want) to have named running as root.

cheers, Ian