forwarded port from docker image not visible in netstat -tln

[wbr2000]

I run Jenkins in a docker container on TrueNAS-SCALE-22.02.2.1. I can access the Jenkins webserver from other computers in the network with the URL hostx:9080. But I fail to access the Jenkins Webserver, when I try to connect through an SSH tunnel hosted hostx. Running the command "netstat -tln" on hostx does not show any of the exposed ports of the docker image. Port 80, 443 etc are listed and port 80 can be used through the ssh tunnel.

I had no issue to access via ssh tunnel when I was using TrueNAS Core with a vm and jenkins running in the vm.

 

[aekt]

Kubernetes uses iptables prerouting, it won’t show up on netstat

 

[wbr2000]

How to access then a docker instance via SSH tunnel? The definition looks for a hostx:9080 address.

 

[heatmiser]

Did you ever get a solution here?