I have a domain like server.example.com with IP like 10.147.18.1
On my PC I have following for ping: Ping request could not find host server.example.com. Please check the name and try again.
In Diagnostics when I ping domains like this I got ping: bad address 'server.example.com'.
It's for virtual local network (ZeroTier) on my PC.
How can I configure OpenWrt to allow these addreses being queried?
Device/firmware: tp link wdr3600 OpenWrt 19.07.1 r10911-c155900f66
Go to network->hostname if you want to add the hostname in OpenWrt.
If you have a DNS server for the domain, then you can instead add it in Network->DHCP and DNS->DNS forwardings.