I would like to operate a DNS server privately.
I have prepared the correct NAT rule for this. When I do an "nslookup" with "server: x.x.x.x" my public static IP address This test are starts from a other public IP, I always get a timeout and I don't see any request on the router.
With an NMAP scan, the port UDP 53 is open. What am I doing wrong? When i created a drop rule for destination port 53, the reult from the NMAP scan is the same.
From the LAN network the requests works fine.
THKS