- Plesk Onyx for Linux
- Plesk Onyx for Windows
The Docker loses the connection when Plesk Firewall was installed or rules were modified.
Firewall rules related to docker are missing in the FORWARD chain:
# iptables -v -S FORWARD | grep docker
This is Plesk bug with ID #PPPM-7924 that is planned to be fixed in future Plesk updates.
As a workaround apply the steps below:
- Log into Plesk.
- Go to Tools & Settings > Services Management.
- Restart the Docker service: