There are various tools where you can test DNS and DNSSEC.
- Zonemaster is a program that was designed to help people check, measure and hopefully also understand the workings of the Domain Name System, DNS.
- DNSViz is a useful DNS visualization tool -- very nice for checking your chain of trust.
- OARC's DNS Reply Size Test Server help users identify resolvers that cannot receive large DNS replies.
- OARC's source port test can be used to check .resolver's source port
- The DNSSEC Analyzer from VeriSign Labs is an on-line tool to assist with diagnosing problems with DNSSEC-signed names and zones.
- validns is an high performance DNS/DNSSEC zone validator that can be used check your zone before publication.
Next Section: OpenDNSSEC integration