1466462 - TRR: Disable EDNS Client Subnet (ECS) in DNS requests (with pref to enable)

Status: RESOLVED FIXED

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

Description

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Some resolvers will acknowledge the request's preference and thus not forward client subnet information to the Authoritative Nameservers if asked not to.

See RFC 7871

Comment 1

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Attachment: bug 1466462 - TRR: disable EDNS Client Subnet by default

Set the "network.trr.disable-ECS" pref to false to disable.

MozReview-Commit-ID: GE6L8Vpvuu0

Comment 2

[Patrick McManus [:mcmanus]]

Comment on attachment 8998504 [details]
bug 1466462 - TRR: disable EDNS Client Subnet by default

Patrick McManus [:mcmanus] has approved the revision.

Comment 3

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/ff3f57736492
TRR: disable EDNS Client Subnet by default r=mcmanus

Comment 4

[Daniel Varga [:dvarga]]

https://hg.mozilla.org/mozilla-central/rev/ff3f57736492

Comment 5

[Liz Henry (:lizzard)]

Is this something you're aiming to fix for 62 as well or can we wontfix it for 62?

Comment 6

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This feels like something we could leave out from 62 since it isn't strictly necessary.

Patrick, what do you think? Should we maintain feature-compat with 63 to this extent and ask for this to get into 62 as well? It's a fairly small and easy patch otherwise so it shouldn't cause any problems...

Comment 7

[Patrick McManus [:mcmanus]]

given the stage of 62, we can wontfix it for 62.