Bug: DNS query leak to host in form `*.home.`

[qupig]

Is this urgent?

None

Host OS

No response

CPU arch

None

VPN service provider

Custom

What are you using to run the container

docker run

What is the version of Gluetun

Running version latest built on 2026-08-07T11:45:47.701Z (commit 7eed6ea) on Linux 6.12.74+deb13+1-amd64 (x86_64)

What's the problem 🤔

It appears that when a DNS query within the container timeout, the domain name leaks to the host in the form *.home.—for example, example.com.home., example.net.home., I'm not sure why, but after spotting numerous NXDOMAIN queries for *.home. in the host logs, I discovered they were originating from the gluetun container.

Share your logs (at least 10 lines)

DEBUG [dns] getting tls connection for request IN A example.com.: renewing dead connection: dialing tcp 1.1.1.1:853: dial tcp 1.1.1.1:853: i/o timeout
DEBUG [dns] getting tls connection for request IN A example.net.: renewing dead connection: dialing tcp 1.1.1.1:853: dial tcp 1.1.1.1:853: i/o timeout

Share your configuration

[github-actions]

@qdm12 is more or less the only maintainer of this project and works on it in his free time.
Please:

• do not ask for updates, be patient
• 👍 the issue to show your support instead of commenting
  @qdm12 usually checks issues at least once a week, if this is a new urgent bug,
  revert to an older tagged container image