This makes it possible to have DNS requests for certain domains routed differently than normal requests, which is for instance useful when using policy routing to route traffic over a VPN but DNS requests for the VPN endpoint itself, should be routed differently. It doesn't make much sense to configure a firewall mark at the level of a network interface, but at the level of a DNS delegate it can be very useful.
System and Service Manager
Details
Most documentation is available on systemd's web site.
Assorted, older, general information about systemd can be found in the systemd Wiki.
Information about build requirements is provided in the README file.
Consult our NEWS file for information about what's new in the most recent systemd versions.
Please see the Code Map for information about this repository's layout and content.
Please see the Hacking guide for information on how to hack on systemd and test your modifications.
Please see our Contribution Guidelines for more information about filing GitHub Issues and posting GitHub Pull Requests.
When preparing patches for systemd, please follow our Coding Style Guidelines.
If you are looking for support, please contact our mailing list, join our IRC channel #systemd on libera.chat or Matrix channel
Stable branches with backported patches are available in the stable repo.
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Repositories with distribution packages built from git main are available on OBS, and also repositories with packages built from the latest stable release
