DNS Server - Synology Knowledge Center
kb.synology.com › en-global › SRMFor example, if you want to use a domain called example.com, you need to register the domain example with the domain provider of .com domain names. Check firewall or port forwarding settings: DNS services require the use of TCP and UDP port 53. If your Synology Router uses a firewall, this port must be opened.
How do I set up a DNS server on my Synology NAS?
kb.synology.com › en-us › DSMMar 02, 2021 · Once your registrar 1 notifies that your domain name is registered, you can create a master zone for the domain on Synology's DNS Server. Check firewall or port forwarding settings: DNS services require the use of TCP/UDP port 53. If your Synology NAS uses a firewall, this port must be opened.
DNS Server - Synology Knowledge Center
kb.synology.com › en-us › DSMCheck firewall or port forwarding settings: DNS services require the use of TCP and UDP port 53. If your DiskStation uses a firewall, this port must be opened. If the DiskStation connects to the Internet through a router, set up port forwarding rules and open TCP and UDP port 53.