On my realy new SN installation a have some troubles to start my node:
indent preformatted text by 4 spacesdocker: Error response from daemon: driver failed
programming external connectivity on endpoint storagenode
(6aa69416c640b70da05238ba02930c49978ee190a471e400da5f95bdb0eed53d): (iptables
failed: iptables --wait -t nat -A DOCKER -p tcp -d 0/0 --dport 28967 -j DNAT --to-destination
172.17.0.3:28967 ! -i docker0: iptables: No chain/target/match by that name.
(exit status 1)).
So then the only way to start is to remove docker completely by
sudo apt-get remove docker docker-engine docker.io docker.ce
and reinstall it again
sudo apt-get install docker-ce docker-ce-cli containerd.io
I installed the Node on a Zentyal 6.1 Server with Ubuntu 18.04 with all the l8est updates last week.
This problem also occours without any firewall on the server.