Filtering a Host Table into Zone Data Files

2.22.1 Problem

You want to filter an existing host table, such as an /etc/hosts file, into zone data files.

2.22.2 Solution

Use a tool such as h2n to filter your host table into the corresponding zone data files. With h2n, you specify the domain name of a forward-mapping zone to create as the argument to the -d option and the networks associated with that zone as the argument to one or more -n options. For example, the following command would build data files for the foo.example and 168.192.in-addr.arpa zones:

% h2n -d foo.example -n 192.168

These zone data files would each contain a SOA record and an NS record pointing to the local host, as well as A records or PTR records for hosts in /etc/hosts on the 192.168/16 network. Additional options allow you to create other records, including NS records pointing to other name servers.

2.22.3 Discussion

You can get a copy of h2n from the tar ball that accompanies DNS and BIND, located at ftp://ftp.oreilly.com/published/oreilly/nutshell/dnsbind/dns.tar.Z. Also, Andris Kalnozols of Hewlett-Packard has enhanced h2n significantly; he makes his souped-up version available at ftp://ftp.hpl.hp.com/pub/h2n/h2n.tar.gz.

There are other tools available for filtering host table-format data into zone data files; h2n is only one option. Take a look at the contents of bind-contrib.tar.gz, available in the same directory as the latest BIND 8 release, for some of your options.

2.22.4 See Also

Section 1.12 for how to get a copy of BIND (or bind-contrib.tar.gz), and "Tools" in Chapter 4 of DNS and BIND.

Getting Started

Zone Data

BIND Name Server Configuration

Electronic Mail

BIND Name Server Operations

Delegation and Registration

Security

Interoperability and Upgrading

Resolvers and Programming

Logging and Troubleshooting

IPv6



DNS & BIND Cookbook
DNS & BIND Cookbook
ISBN: 0596004109
EAN: 2147483647
Year: 2005
Pages: 220
Authors: Cricket Liu

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