PiHole - port 53 appears to be conflicting

Apps and Virtualization
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1

Hi All,

I’ve been running my TrueNAS Scale instance for a few weeks without issue. After a powercut yesterday, all the apps came back up, apart from Pihole.

After looking into the /var/log/app_lifecycle.log for more details as advised, I found this.

11.12MB/11.12MB
9fe644bd1a92 Pull complete 
pihole Pulled 
Network ix-pihole_default  Creating
Network ix-pihole_default  Created
Container ix-pihole-pihole-1  Creating
Container ix-pihole-pihole-1  Created
Container ix-pihole-pihole-1  Starting
Error response from daemon: driver failed programming external connectivity on endpoint ix-pihole-pihole-1 (18a41e823f3a49e29c0b8243e65bae93119ae7405cf26f5cbcc9e563c89b3961): failed to bind port 0.0.0.0:53/tcp: Error starting userland proxy: listen tcp4 0.0.0.0:53: bind: address already in use\n

I can see that some other service is using port 53.

How can I stop this or alter the config of Pihole??

2

Its propably incus using port 53 for internal dns resolution.

you can try with

sudo incus network set incusbr0 raw.dnsmasq="port=5354"

to rebind the incus port and free up port 53

6 Likes
3

Amazing!! Thanks for the rapid and very useful response!
That worked a treat!

4

this helped me reinstall pihole !! hey development team are you taking notes!?

5

Took me forever to get here but this solved my problem thank you.

6

This also resolved container creation erroring on 25.04

Thanks

If I may ask, how did you knew/guess it was incus?
and how would I go about stumbling my way into finding it was incus?

I appreciate the help immensely, my question is simply my drive to understand something I do not.

7

When incus was first announced i played around with it extensively to see if it can be a 1:1 replacement for my jailmaker nspawn-container which hosts my docker stack. One of the docker container i run in there is blocky, a dns-sinkhole like pi-hole which also needs port 53. I then googled around and found the command i posted in this tread above in a post on the incus forum.

So basically i’ve been in the same position 6 months ago :sweat_smile:

1 Like