HEADS UP: Be aware of Trusted Recursive Resolver (TRR) in Firefox

[kiokoman]

interesting how this android phone is ignoring my dhcp settings (8.8.8.8 is not one of my dns) and try to use dot,

the phone have chrome installed, not firefox but maybe is some other apps running on it

[Bob.Dig]

@kiokoman Is Private DNS on or off?

Spoiler

[HuskerDu]

Some (most ?) Android devices do natively their Internet connectivity check towards 8.8.8.8.

Android 9+ have "Private DNS" settings enable/disable/auto for DoT.

Both things together may explain your logs.

[johnpoz]

@kiokoman said in HEADS UP: Be aware of Trusted Recursive Resolver (TRR) in Firefox:

from what i understant it will use doh only if the dns you have configured support it
?

So you saying if I already point to say 1.1.1.1 and they do doh, then it will use doh vs just open?

I guess that is not as bad as some of the others.. But if using say 192.168.1.1 it won't?

[kiokoman]

@Bob-Dig idk it's not my phone, if it's "Private DNS" settings than it was probably on by default, my family does not know what dot / doh is

@johnpoz exactly