/etc/NetworkManager/dispatcher.d
NameSizeModeActions
no-wait.d/-0755rm
pre-down.d/-0755rm
pre-up.d/-0755rm
11-dhclient10620755editdlrm
20-chrony-dhcp17730755editdlrm
20-chrony-onoffline7870755editdlrm
Edit: /etc/NetworkManager/dispatcher.d/20-chrony-onoffline (787B)
#!/bin/sh # This is a NetworkManager dispatcher / networkd-dispatcher script for # chronyd to set its NTP sources online or offline when a network interface # is configured or removed export LC_ALL=C chronyc=/usr/bin/chronyc # For NetworkManager consider only selected events if [ $# -ge 2 ]; then case "$2" in up|down|connectivity-change) ;; dhcp4-change|dhcp6-change) # Actions "up" and "connectivity-change" in some cases do not # guarantee that the interface has a route (e.g. a bond). # dhcp(x)-change handles at least cases that use DHCP. ;; *) exit 0;; esac fi # Note: for networkd-dispatcher routable.d ~= on and off.d ~= off $chronyc onoffline > /dev/null 2>&1 exit 0