DNS not resolving for a single specific host

Installing and Using OpenWrt
1

I am using NGINX Proxy Manager without issue except for this single problem host/dns entry. I can see the DNS attempt via logread. I have checked the spelling multiple times, I have deleted/re-added the entry, and I have moved the entry to different positions and can see it moved correctly in luci and in dhcp file. I am using NextDNS for the upstream but have configured OpenWRT to not forward the domain; and to make sure, I do not see any attempt within NextDNS.

From the router cli, I also can not resolve the host, but again, I can resolve all others, even after moving the entry around the config.

What am I missing?

2

Router doesn't use local DNS unless you tell it to.

Verify using nslookup your.dns.name 192.168.1.1, or whatever the router IP is.
Repeat on the client.

1 Like
3

nslookup from a client results in NXDOMAIN for the problem entry. From the router, the nslookup fails.

A dig from the client returns a blank entry, a dig from the router times out. (A dig for a successful entry from the client shows the CNAME and the matching A of the CNAME entry.)

4

Then I guess the DNS entry you added someplace isn't working.

5

I don't understand why, but I rebooted the router and the problem DNS entry now resolves. :man_shrugging: