GitHub - awaw/dnsreflector: answer dns queries with fixed IP

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Name		Name	Last commit message	Last commit date
Latest commit History 9 Commits
LICENSE		LICENSE
MANIFEST		MANIFEST
Makefile		Makefile
README		README
dnsreflector.1		dnsreflector.1
dnsreflector.c		dnsreflector.c
dnsreflector.h		dnsreflector.h
log.c		log.c

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The dnsreflector daemon listens for DNS queries on a local UDP port and
answers with records pointing back to localhost. Combined with pf(4) this
works as a bandwidth efficient spamtrap.

This program was written and tested with OpenBSD. If you are interested
in running dnsreflector on another platform, please contact me.


Installation
============

make
make install


PF Setup
========

table <spamd> persist
rdr inet proto udp from <spamd> to any port 53 -> 127.0.0.1 port 53000


Usage
=====

dnsreflector [-d] [-a address] [-p port] [-i ip]

-d           Run as daemon in the background
-a address   Bind to this address (default: 127.0.0.1)
-p port      Bind to this port (default: 53000)
-i ip        Answer with this IP instead of 127.0.0.1


Homepage
========

You can always find the latest version of dnsreflector at:

    http://www.wolfermann.org/dnsreflector.html