iptables -L
iptables operation not supported

把 iptables 设为 iptables-legacy 模式

update-alternatives --config iptables

或者

update-alternatives --set iptables /usr/sbin/iptables-legacy
update-alternatives --set ip6tables /usr/sbin/ip6tables-legacy
update-alternatives --set arptables /usr/sbin/arptables-legacy
update-alternatives --set ebtables /usr/sbin/ebtables-legacy

Docker:

vi /lib/systemd/system/docker.service

把

ExecStart=/usr/bin/dockerd -H fd://

修改为

ExecStart=/usr/bin/dockerd -H unix://

参考资料:

https://forums.docker.com/t/failed-to-load-listeners-no-sockets-found-via-socket-activation-make-sure-the-service-was-started-by-systemd/62505