An implementation to measure the open DNS infrastructure using TCP over IPv4. It comprises all ODNS components:
- Recursive resolvers
- Recursive forwarders
- Transparent forwarders
Regular scan results are published under http://odns.secnow.net
These tools measure the path to and beyond transparent DNS forwarders.
Sends out SYN packets with increasing IP TTL values. As soon as a SYN/ACK arrives, the tool starts to send DNS requests over TCP with increasing IP TTL to explore the path between scanner over target to DNS resolver.
Usage
sudo go run dns_traceroute_tcp.go [target-ip]