A simple command-line DNS testing tool
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check-soa.go

README.md

check-soa

A simple command-line DNS testing tool

Summary

Its main use is for having rapidly an idea of the health of a DNS zone. It queries each name server of the zone for the SOA record and displays the value of the serial number for each server.

It tries to be simple and fast. As a result, it is not a competitor for serious DNS checkers like ZoneMaster.

Usage

check-soa ZONENAME

-h will tell you the possible options.

Installation

It is written in Go, so you need a Go compiler installed. Here, we assume you have cgo.

check-soa depends on GoDNS so you need to install it:

go get github.com/miekg/dns

Then, compile:

make

And copy the executable where you want.

Origins

This program is heavily inspired by the original check-soa found in the excellent book "DNS and BIND" by Liu and Albitz. Unlike the original one, my check-soa:

  • queries the name servers in parallel
  • works with IPv4 and IPv6
  • works with TCP

Reference site

At Github

Licence

Copyright (c) 2012, Stephane Bortzmeyer All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

  • Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
  • Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 'AS IS' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Author

Stephane Bortzmeyer bortzmeyer@nic.fr