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Date: Wed, 02 Feb 2005 15:49:17 -0500
From: Gary Corcoran <garycor@comcast.net>
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To: Matt <mhersant@comcast.net>
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cc: hackers@freebsd.org
Subject: Re: cahe-only DNS in jail
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Matt wrote:
> I'm experiencing strange behaviour with Bind running inside a jail.  I'm 
> running 5.2.1 current in the jail.  Thinks are working, but poorly.  
> Lookups for my local machines work perfectly.  Some remote lookups work 
> fine (yahoo, google, etc...).  However, many lookups time out, but will 
> succeed after a few tries.  I'm doing all this from home (comcast cable 
> internet).  Anyway, I'm not sure what to do.  Sniffing the network 
> doesn't seem to help much.  Queries and requests are reaching the right 
> hosts and ports.  Thanks for any help.

I don't know if this applies to you, but about yesterday my
PC's stopped working w/r/t DNS lookups.  Comcast changed the
IP addresses of their DNS servers.  For a while they had one new
one, but one of the old ones worked.  But yesterday the old IP
address stopped working completely, forcing me to update my
configuration files...

Gary

> dnshost# uname -a
> FreeBSD dnshost 5.2.1-RELEASE FreeBSD 5.2.1-RELEASE #0: Mon Feb 23 
> 20:45:55 GMT 2004     
> root@wv1u.btc.adaptec.com:/usr/obj/usr/src/sys/GENERIC  i386
> 
> dnshost# named -v
> named 8.3.7-REL Sun Jan  2 13:17:40 PST 2005
>        root@tmodel.my.domain:/usr/obj/usr/src/usr.sbin/named
> 
> dnshost# nslookup www.washington.edu
> Server:  localhost
> Address:  127.0.0.1
> 
> *** localhost can't find www.washington.edu: Server failed
> dnshost# !!
> nslookup www.washington.edu
> Server:  localhost
> Address:  127.0.0.1
> 
> Non-authoritative answer:
> Name:    www.washington.edu
> Addresses:  140.142.15.233, 140.142.3.7, 140.142.3.35, 140.142.15.163
> 
> dnshost# !!
> nslookup www.usenix.org
> Server:  localhost
> Address:  127.0.0.1
> 
> Non-authoritative answer:
> Name:    db.usenix.org
> Address:  131.106.3.253
> Aliases:  www.usenix.org
> 
> options {
>        directory "/etc/namedb";
>        pid-file "/var/run/named/pid";
> };
> 
> zone "." {
>        type hint;
>        file "tables/named.root";
> };
> 
> zone "0.0.127.IN-ADDR.ARPA" {
>        type master;
>        file "tables/db.localhost";
> };
> 
> zone "hersant.dyndns.org" {
>        type master;
>        file "tables/db.hersant.dyndns.org";
> };
> 
> zone "2.168.192.in-addr.arpa" {
>        type master;
>        file "tables/db.2.168.192.in-addr.arpa";
> };