1811470 - domain in "network.trr.excluded-domains" not respected (outbound connections still made)

Status: RESOLVED INCOMPLETE

(Core :: Networking: DNS, defect, P2)

Description

[candita]

Steps to reproduce:

set "network.trr.mode" to "3"
enter domains in "network.trr.excluded-domains"

Actual results:

Outbound connection to bootstrapped doh service IP address is made

Expected results:

No connection should have been made. No connections were made in Firefox 105.x (expected). Tested working incorrectly in Firefox 108.x and 109.0.

Comment 1

[BugBot [:suhaib / :marco/ :calixte]]

The Bugbug bot thinks this bug should belong to the 'Core::Networking: DNS' component, and is moving the bug to that component. Please correct in case you think the bot is wrong.

Comment 2

[candita]

An amendment to steps to reproduce:

"network.trr.exclude-etc-hosts" is set to true and address is one word or incomplete. Also said address is in hosts file set to 0.0.0.0

Comment 3

[Valentin Gosu [:valentin] (he/him)]

Could you capture some logs of this happening?
https://firefox-source-docs.mozilla.org/networking/http/logging.html

Outbound connection to bootstrapped doh service IP address is made

Just to clarify:
You put a hostname in the excluded domains, but it still ended up connecting the the IP returned by DoH, instead of the one coming from /etc/hosts?

Comment 4

[candita]

(In reply to Valentin Gosu [:valentin] (he/him) from comment #3)

Could you capture some logs of this happening?
https://firefox-source-docs.mozilla.org/networking/http/logging.html

Outbound connection to bootstrapped doh service IP address is made

Just to clarify:
You put a hostname in the excluded domains, but it still ended up connecting the the IP returned by DoH, instead of the one coming from /etc/hosts?

*Hostname put in excluded domains
*Hostname was included in Hosts file directing to 0.0.0.0
*Hostname was one word

In the past no outbound connection to the doh IP address would be made. Now it does.

I would rather not post logs.

Comment 5

[Valentin Gosu [:valentin] (he/him)]

Are you sure there isn't another host that has the same IP address?
Note that resolving test. is unfortunately different from resolving test, so you consider adding both.

Without logs I can't really confirm if there is a problem or not.

Comment 6

[candita]

(In reply to Valentin Gosu [:valentin] (he/him) from comment #5)

Are you sure there isn't another host that has the same IP address?
Note that resolving test. is unfortunately different from resolving test, so you consider adding both.

Without logs I can't really confirm if there is a problem or not.

in the excluded domains I have entered as follows using "clown" as an example: clown, www.clown
And in the hosts file have included entries for both. As I said, there were no outbound connections with Firefox 105.x

Comment 7

[Valentin Gosu [:valentin] (he/him)]

(In reply to candita from comment #6)

And in the hosts file have included entries for both. As I said, there were no outbound connections with Firefox 105.x

You can find out the regressing bug yourself using mozregression:
https://mozilla.github.io/mozregression/quickstart.html

Thanks!

Comment 8

[BugBot [:suhaib / :marco/ :calixte]]

A needinfo is requested from the reporter, however, the reporter is inactive on Bugzilla. Given that the bug is still UNCONFIRMED, closing the bug as incomplete.

For more information, please visit BugBot documentation.