Where did iptables.service go (Ubuntu 16.04)?

Question

iptables

Hello. What's the anomaly? Web server with Ubuntu 16.04. On board docker.
ipset and white lists of subnets... Everything worked.
But one day, I discovered:

[email protected]:~/sh# systemctl status iptables
● iptables.service
   Loaded: not-found (Reason: No such file or directory)
   Active: inactive (dead)

Even bash scripts containing systemctl start iptables worked out successfully for me. And now everything... What could happen?
The iptables command and others (such as iptables-restore) work out:

[email protected]:~/sh# iptables -V
iptables v1.6.0

systemctl list-units | grep iptablesSilence... Wanted to
reinstall iptables... so it removes docker... What the heck is that...???

Answer 1

Tyts