OPNsense Forum

Archive => 22.7 Legacy Series => Topic started by: Inxsible on October 01, 2022, 06:29:36 pm

Title: DNS Leak Test giving different results
Post by: Inxsible on October 01, 2022, 06:29:36 pm

I ran the Extended test from Chromium and it found 1 Comcast server as my DNS. I ran the same Extended test from Firefox and it found 3 Cloudflare servers as my DNS.


Why would the results be different when I am running them simultaneously from the same machine?

Title: Re: DNS Leak Test giving different results
Post by: KHE on October 01, 2022, 06:47:18 pm

Because Firefox is not using your computers resolver but just the CloudFlare DNS servers via DoH directly.
Look here: https://support.mozilla.org/en-US/kb/firefox-dns-over-https (https://support.mozilla.org/en-US/kb/firefox-dns-over-https)

KH

Title: Re: DNS Leak Test giving different results
Post by: Inxsible on October 02, 2022, 05:11:05 am

Quote from: KHE on October 01, 2022, 06:47:18 pm

Because Firefox is not using your computers resolver but just the CloudFlare DNS servers via DoH directly.
Look here: https://support.mozilla.org/en-US/kb/firefox-dns-over-https (https://support.mozilla.org/en-US/kb/firefox-dns-over-https)

KH

Aha ! Makes sense now. thanks for pointing it out.

Title: Re: DNS Leak Test giving different results
Post by: Supermule on October 02, 2022, 11:31:58 am

It renders your IDS useless....

Block it and it will revert to port 53 and use your local DNS resolver