Bind not listening?

Michael Kjorling michael at kjorling.com
Tue Aug 14 21:28:24 UTC 2001


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On Aug 14 2001 14:13 -0700, Aaron Dougherty wrote:

> A summary of my syslog (everything looks good to me)
>
> Aug 14 13:32:59 naboo named[1216]: starting (/etc/named.conf).  named
> 8.2.3-REL Sat Jan 27 05:11:05 EST 2001 ^Iprospector at por
> ky.devel.redhat.com:/usr/src/bs/BUILD/bind-8.2.3/src/bin/named
> Aug 14 13:32:59 naboo named[1216]: hint zone "" (IN) loaded (serial 0)
> Aug 14 13:33:00 naboo named[1216]: Zone "0.0.127.in-addr.arpa" (file
> zone/127.0.0): No default TTL ($TTL <value>) set, using
> SOA minimum instead
> Aug 14 13:33:00 naboo named[1216]: master zone
> "0.0.127.in-addr.arpa" (IN) loaded (serial 199609203)
> Aug 14 13:33:00 naboo named[1216]: Zone "147.12.66.in-addr.arpa" (file
> zone/66.12.147): No default TTL ($TTL <value>) set, us
> ing SOA minimum instead
> Aug 14 13:33:00 naboo named[1216]: master zone
> "147.12.66.in-addr.arpa" (IN) loaded (serial 199609203)
> Aug 14 13:33:00 naboo named[1216]: Zone "swsim.com" (file
> zone/swsim.com): No default TTL ($TTL <value>) set, using SOA minim
> um instead

You did intend to add $TTL directives to your zone files, right...?
:-)


> Aug 14 13:33:00 naboo named[1216]: master zone "swsim.com" (IN) loaded
> (serial 199609206)
> Aug 14 13:33:00 naboo named[1216]: listening on [127.0.0.1].53 (lo)
> Aug 14 13:33:00 naboo named[1216]: listening on [66.12.147.134].53 (eth0)
> Aug 14 13:33:00 naboo named[1216]: Forwarding source address is
> [0.0.0.0].1031

Is this a bug in BIND, or why does so many use 0.0.0.0 as the
forwarding source address? First of all I would suggest that you don't
use forwarding at all - it creates single points of failure more than
anything else, which is one of the things DNS tries to _avoid_ (why do
you think so many want you to have two name servers for each zone,
preferably on different network segments?) 0.0.0.0, by the way, is
always treated as "the local computer", whatever computer that happens
to be. That probably is not what you want, since the query replies
won't ever get back to you.


> Aug 14 13:33:00 naboo named[1217]: Ready to answer queries.

But can it receive the answers?


Michael Kjörling

- -- 
Michael Kjörling - michael at kjorling.com - PGP: 8A70E33E
Manager Wolf.COM -- Programmer -- Network Administrator
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