Private DNS Suffix not appending to DNS queries when using Zero Trust Client

Zero Trust Cloudflare Tunnel
1

What is the name of the domain?

What is the error message?

connectivity-check.warp-svc can’t find server: Non-existent domain

What is the issue you’re encountering

dns suffix not appending for internal DNS server.

What steps have you taken to resolve the issue?

Tested locally on internal dns server and works fine.

What are the steps to reproduce the issue?

Enable Zero Trust Client and try and access any internal device without dns suffix

2

May I ask is it possible that your ISP in your country is filtering or blocking the access? :thinking:

Did you put the correct DNS in your router or device?

All domains fail to resolve or only some?

Which OS are you running? Wonder for the debug or log output which you could check.

Which version of the client are you using?

3

Thank you for the follow up!

DNS works fine and even DNS suffix works fine on a different system but same ISP.

DNS works with suffix if you type in the internal FQDN, but the DNS is not responding by appending the default DNS suffix. It resolves if you type in the FQDN, but I would like it to work by automatically.

It is resolving the correct internal DNS server and that server responds by appending the DNS suffix automatically when on the server directly.

DNS queries are working and DNS forwarders are set to the DNS servers IPv4 endpoint in the Gateway DNS locations setting.