интерфейс D-Bus системы с разрешением systemd (The D-Bus interface of systemd-resolved)
Примечание (Note)
1. Writing Network Configuration Managers
https://wiki.freedesktop.org/www/Software/systemd/writing-network-configuration-managers
2. Writing Resolver Clients
https://wiki.freedesktop.org/www/Software/systemd/writing-resolver-clients
3. RFC 1035
https://www.ietf.org/rfc/rfc1035.txt
4. DNS RCODEs
https://www.iana.org/assignments/dns-parameters/dns-parameters.xhtml#dns-parameters-6
5. the usual interface versioning guidelines
http://0pointer.de/blog/projects/versioning-dbus.html
