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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).

Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.

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Noob Question Thread: Ask Any Questions About Linux! (lemmy.ml)

submitted 8 months ago by [email protected] to c/[email protected]

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I thought I'll make this thread for all of you out there who have questions but are afraid to ask them. This is your chance!

I'll try my best to answer any questions here, but I hope others in the community will contribute too!

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[–] [email protected] 3 points 8 months ago (1 children)

How do I enable DNS over HTTPS or DNS over TLS for all connections in NetworkManager in Debian 12?

It is easy to configure custom DNS servers for all connections via a new .conf file in /etc/NetworkManager/conf.d with a servers=8.8.8.8 entry in the [global-dns-domain-*] section.

How can I configure NetworkManager to use DNS over HTTPS or DNS over TLS via a conf file?

[–] [email protected] 3 points 8 months ago* (last edited 8 months ago) (1 children)

NetworkManager doesn't support DoH, DoT or other recent protocols like DoQ and DoH3. You'll need to set up a local DNS resolver / proxy which can handle those protocols. You could use dnsproxy for this. Once you set it up, you can just use "127.0.0.1" as your DNS server in NetworkManager.

Btw, if possible I'd recommend sticking to DoH3 (DNS-over-HTTP/3) or DoQ (DNS-over-QUIC) - they perform better than DoT and vanilla DoH, and are more reliable as well.

[–] [email protected] 1 points 8 months ago

Thanks a lot for your answer! :-)