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Special Forums IP Networking Conditional Forwarding using BIND9 Post 302246625 by MrC on Tuesday 14th of October 2008 04:37:05 AM
Old 10-14-2008
You don't want to use a secondary nameserver in the system resolver as a form of conditional DNS lookups - the timeouts are too long, and that is not its intended purpose. The purpose is for one of having a backup for the situation when a primary is temporarily offline or unresponsive.

Setup bind with a forward zone for queries to internal.net that query your DNS server of choice. See: "A "forward zone" is a way to configure forwarding" in the BIND reference manual: BIND 9 Administrator Reference Manual

Last edited by MrC; 10-15-2008 at 12:42 AM..
MrC
 

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POLYGRAPH-DNS-CFG(1)						   User Commands					      POLYGRAPH-DNS-CFG(1)

NAME
polygraph-dns-cfg - DNS server configuration tool SYNOPSIS
dns-cfg [--option ...] DESCRIPTION
Given a zone name, DNS names, and IP addresses, dns-cfg builds configuration suitable for use with BIND and, perhaps, other DNS servers. Dns-cfg output consists of three parts. The first part is the text to cut-and-paste into BIND's named.conf file. This part is sent to the standard output. The outer two parts are direct and reverse zone files. Those may be quite large and are dumped on disk into the appropri- ately named files. Dns-cfg can use PGL configuration as the source of information. OPTIONS
--help list of options --version package version info --config <filename> PGL configuration --cfg_dirs <dirs> directories for PGL #includes --zone <str> zone name --addresses <str> IP addresses --names <str> domain names COPYRIGHT
Copyright (C) 2003-2006 The Measurement Factory, Inc. SEE ALSO
polygraph(7) - general information and a list of programs http://www.web-polygraph.org/ - project web site polygraph-dns-cfg - Web Polygraph February 2010 POLYGRAPH-DNS-CFG(1)
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