https://goshs.de/en/usage/collaboration/dns/index.html How to use goshs as a DNS server goshs includes a lightweight DNS server that logs every incoming DNS query. This is useful in penetration testing and CTF scenarios where you want to detect out-of-band DNS interactions — for example when testing for SSRF, XXE, blind injection, or similar vulnerabilities. Tip To receive DNS callbacks from the internet you need a registered domain with an NS delegation record pointing to your server. See Domain setup for the full configuration. Hugo en-US