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External Cache for LAN

To: dns@list.cr.yp.to
Subject: External Cache for LAN
From: "Steve Lange" <djbdns@wadsworthcity.com>
Date: Thu, 18 Jan 2007 10:57:21 -0500 (EST)
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Hello djbdns list,

I have successfully set up an internal djbdns cache server that works
locally on the server.  Now, I am trying to setup a djbdns external cache
to work for my local network.  My goal is to have a DNS server for my LAN
that can resolve internal network names, I'm not concerned with having a
fully operational authoritative name server that is accessible from the
Internet.  I am using CentOS 4.4 with djbdns 1.05 and I have allowed port
53 through the firewall, and I have disabled the firewall as well for
testing.  I have verified that the external cache is running on the server
with a 'ps-aux' command, and I can see the '172.16.0.99:53' listening on
tcp when I do a 'netstat -nl'.  When I enter '172.16.0.99' for my DNS
server on my PC, when I do a 'nslookup' it says this:

DNS request timed out
   timeout was 2 seconds
*** Can't find server name for address 172.16.0.99: Timed out
*** Default servers are not available
Default Server: UnKnown
Address: 172.16.0.99

when I try to resolve a name, it says this:

Server: UnKnown
Address: 172.16.0.99

DNS request timed out.
   timeout was 2 seconds.
DNS request timed out.
   timeout was 2 seconds.
*** Request to UnKnown timed-out


I have read the documentation and followed the following guides:
   http://www.djbdnsrocks.org/
   http://www.lifewithdjbdns.com/#Example%20Configurations
   http://flounder.net/djbdns/bind-to-djbdns.html


Any help would be appreciated.

Thanks,
Steve




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