DNS Nameserver Spoofability Test

[mr_bobo]

In case you're interested, grc.com has made available a “Cache Poisoning” test in order to determine whether your DNS servers might still be vulnerable to the attack.

https://www.grc.com/dns/dns.htm

What I found entertaining is the router crash test they also make available, which my pfSense router passed with flying colors.

https://www.grc.com/dns/crashtest.htm