Issue with Pi-Hole on Ubuntu and port 53

[Steven_Lloyd]

Expected Behaviour:

FTL web service should be running

Actual Behaviour:

FTL web service is showing "FTL offline" but the service is running. I believe this is an issue with port 53

Debug Token:

https://ticoder.pi-hole.net/6bez9yqrww

I attempted to disable the dnsmasq to see if that was causing the issue

sudo systemctl stop dnsmasq
sudo systemctl restart pihole-FTL.service

That didn't change anything
I think the FTL service is running:

sudo service pihole-FTL status
pihole-FTL.service - LSB: pihole-FTL daemon
Loaded (/etc/init.d/pihole-FTL; generated)
Active: active (exited) since Wed 2019xxxxxxxxxxxxxxxxxxxxxxxx
Docs: man:systemd-sysv-generator(8)
Process: 9434 ExecStop=/etc/init.d/pihole-FTL stop (code=excited, status=0/SUCCESS)
Process: 9450 ExecStart=/etc/init.d/pihole-FTL start (code=excited, status=0/SUCCESS)

sudo netstat -nltup | grep :53

Shows me a service called "named" with PID 1011 that is on the IP address that I need but if I kill that process then the DNS stops working.

[RamSet]

@Steven_Lloyd

Shows me a service called “named”

That's exactly what's taking over port 53 (required for DNS0 and not letting Pi-hole use it.

See:

FTL offline - Lost connection to API

Here you go: https://linux.die.net/man/8/named This was installed as part of some other software (not a part or requirement of Pi-hole). You can either configure named for a different port or remove it (but this might have implications further down the whatever installed it in the fist place). Pi-hole required port 53 in order to work and if that port is not available, it will behave like it does in your case.

That should fix your issue.