- mDNS/DNS-SD
- avahi compat
- DNS-SD service registration from socket units
- - nss module: fallback to glibc dns modules if resolved cannot be contacted
- edns0
- dname
- cname on PTR (?)
+ - read /etc/resolv.conf if it is not pointing to our own
* Ignore .busname units on classic D-Bus boots, systemd-resolved cannot be started on kdbus
without the active policy and should get a Wants=org.freedesktop.resolve1.busname to