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Author SHA1 Message Date
Yu Watanabe 20572a8938 units: drop Before=sockets.target from networkd resolve hook 
Otherwise, it introduces cyclic dependencies:
```
systemd[1]: sockets.target: Found ordering cycle:
    systemd-networkd-resolve-hook.socket/start after network-pre.target/start after
    iptables.service/start after basic.target/start after sockets.target/start -
    after systemd-networkd-resolve-hook.socket
systemd[1]: sockets.target: Job systemd-networkd-resolve-hook.socket/start deleted
    to break ordering cycle starting with sockets.target/start
```

Follow-up for 37adb410a2.
Fixes #42353.
 2026-05-29 04:34:30 +09:00
Nick Rosbrook 37adb410a2 units: order networkd resolve hook After=network-pre.target 
Without this, the socket is available well before systemd-networkd.service
is able to start, because of its own After=network-pre.target ordering.
Then, if resolved handles queries before network-pre.target, it will
hang waiting for networkd to reply to hook queries.

This is currently happening in the wild with cloud-init.
 2026-04-24 17:59:54 +01:00
Lennart Poettering a7fa29b1b5 networkd: add support for resolved hook for DHCP server 
Let's synthesize DNS RRs for leases handed out by our DHCP server. This
way local VMs can have resolvable hostnames locally.

This does not implement reverse look ups for now. We can add this
later in similar fashion.
 2025-11-15 07:52:42 +01:00