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answer dns queries with fixed IP http://www.wolfermann.org/dnsreflecto…
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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