Unable to enable DHCP server in Docker using DHCP_ACTIVE environment variable

[rramchar]

Expected Behaviour:

When starting Pihole in Docker with the following environment variables I expect that the UI would show DHCP Server Enabled as checked. Checking the UI shows the checkbox as not checked.

-e DHCP_ACTIVE="true" -e DHCP_START='10.0.0.100' -e DHCP_END='10.0.0.200' -e DHCP_ROUTER='10.0.0.1'

I expect that the UI element would be checked and the From: To: and Router: text fields would be populated with the values from the environment variables passed to docker.

Actual Behaviour:

The DHCP Server Enabled is not set (checked). The From: To: and Router: values are empty

Debug Token:

https://tricorder.pi-hole.net/Yi1MUXTX/

[Bucking_Horn]

Did you restart your Pi-hole container for the settings to take effect?

[rramchar]

Yes I did.

[Bucking_Horn]

Please share your full docker-compose or Docker run command for Pi-hole..

[rramchar]

docker run -d --name pihole -p 53:53/tcp -p 53:53/udp -p 80:80 -e DHCP_ACTIVE="true" -e DHCP_START='10.0.0.100' -e DHCP_END='10.0.0.200' -e DHCP_ROUTER='10.0.0.1' -e PIHOLE_DNS='127.0.0.1#5335' -e TZ="America/New_York" -e WEBPASSWORD=password123 --dns=1.1.1.1 --hostname pi.hole pihole/pihole:latest

I've tried this command on Docker Desktop (Mac) and on Docker under Ubuntu and Debian. All environments tested do not have the DHCP box checked.

[rdwebdesign]

@rramchar

docker run -d --name pihole -p 53:53/tcp -p 53:53/udp -p 80:80 -e DHCP_ACTIVE="true" -e DHCP_START='10.0.0.100' -e DHCP_END='10.0.0.200' -e DHCP_ROUTER='10.0.0.1' -e PIHOLE_DNS='127.0.0.1#5335' -e TZ="America/New_York" -e WEBPASSWORD=password123 --dns=1.1.1.1 --hostname pi.hole pihole/pihole:latest

Add --cap-add=NET_ADMIN to your command and try again.

You need NET_ADMIN capability if you want to use Pi-hole as DHCP server.

You can see the value on the compose file example and on the Notes on Capabilities section.

[rramchar]

That solved it. Thanks. Reading up on the two links you sent. Appreciate your help!