Objective
Use Nginx Proxy Manager to handle both an internal and external domain. Use new.lan as the internal domain, and external.com as the public facing sites.
Some background
Everything was working lovely using the old.lan domain. I was able to use NPM and set up something like logs.old.lan to access Dozzle. However, after I changed the DHCP subnet in my FWG, I was no longer able to get anything working. I changed the hostname to new.lan as well, yet that hasn't helped either. As shown below, DNS is still just straight up confusing the hell out of me.
Setup
- Cloudflare is used for my external domain. The root domain has a CNAME to the FWG DDNS domain. Any subdomains that I want to be public, such as XXX.external.com, have a CNAME pointing to the root.
- Firewalla Gold in router mode. This handles DNS, routing, etc.
- NUC - My server running all docker containers. The current hostname let's say is new.lan. I have port forwarding for 80 and 443 exposed.
After making the DHCP and hostname changes, I noticed that if I try to ping ANYTHING.old.lan, I get the old IP address. But if I try to ping ANYTHING.new.lan, I get NXDOMAIN issues. Running nslookup -debug is showing:
~ % nslookup -debug test.new.lan
Server: 10.189.128.1
Address: 10.189.128.1#53
------------
QUESTIONS:
test.new.lan, type = A, class = IN
ANSWERS:
AUTHORITY RECORDS:
-> .
origin = a.root-servers.net
mail addr = nstld.verisign-grs.com
serial = 2023112401
refresh = 1800
retry = 900
expire = 604800
minimum = 86400
ttl = 10800
ADDITIONAL RECORDS:
------------
** server can't find test.new.lan: NXDOMAIN
But for the old one (where the IP is no longer in use by the FWG, and the hostname has been changed), I see:
aaronkatz@Aarons-MacBook-Pro ~ % nslookup -debug test.old.lan
Server: 10.189.128.1
Address: 10.189.128.1#53
------------
QUESTIONS:
test.athena.lan, type = A, class = IN
ANSWERS:
-> test.old.lan
internet address = 10.0.0.144
ttl = 0
AUTHORITY RECORDS:
ADDITIONAL RECORDS:
------------
Name: test.old.lan
Address: 10.0.0.144
I'm pretty sure there is something VERY basic I am missing relating to networking and this equipment, but I am just hitting my head against the wall at the moment. Any help is greatly appreciated!!!