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A comment on The NSA and CIA use ad blockers. Parent comment

Re:The NSA and CIA use ad blockers by whalesalad on Thursday September 23, 2021 @12:35PM (#28631512)
It's enlightening when you see all the crap that all the devices on your network are doing. You can take things a step further and isolate IOT devices on isolated subnets, with additional firewall/security rules to create a choke point for all traffic.

Only a matter of time before applications begin to roll their own encrypted forms of DNS in order to circumvent ad blockers.

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Re:The NSA and CIA use ad blockers by StillBored on Thursday September 23, 2021 @12:40PM (#28631595)
You mean like DOH? which is quickly becoming ubiquitous.
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Re:The NSA and CIA use ad blockers by JohnFen on Thursday September 23, 2021 @02:44PM (#28633392)
That's why I had to start MITMing all of my HTTPS connections.
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Re:The NSA and CIA use ad blockers by zo1 on Thursday September 23, 2021 @04:17PM (#28634693)
That's when the apps start embedding(pinning) certificates and completely ignoring any additional root certs you might want them to accept from the OS.
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Re:The NSA and CIA use ad blockers by userbinator on Thursday September 23, 2021 @07:39PM (#28636969)
That's when you start injecting your own certificate into the certificate verification APIs... one of the amazing powers you get when you're root and actually have full control of your device, no wonder it scares big (ad)tech for users to have that power.
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Re:The NSA and CIA use ad blockers by blitzar on Thursday September 23, 2021 @12:51PM (#28631765)
I expect they mean bypass your networks DNS completely and use hard coded ip's or a hard coded DNS (with some way to obscure it).

DNS filtering and blocking is a very powerful tool great for bypassing many features/pitfalls of the internet.

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Re:The NSA and CIA use ad blockers by BeefWellington on Thursday September 23, 2021 @08:46PM (#28637380)
If you have the commitment to it, you can simply force all outbound connections not originating from your DNS servers to be NATed TO your DNS servers.

I do this; no machine other than my 2 DNS servers are permitted to make outbound DNS requests (they are transparently handled by my LAN DNS).

The real annoying change is the transition to DNS over HTTPS. The canary domain[1] is useful but apps are obviously free to ignore it.

[1]: https://support.mozilla.org/en-US/kb/canary-domain-use-appli...

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Re:The NSA and CIA use ad blockers by whalesalad on Thursday September 23, 2021 @01:26PM (#28632286)
DOH is one way to do it. HTTPS is a secure channel.
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