Strange behavior accessing Docker Remote API

Hi All,

I hope this is the correct place to ask.

I have a redhat docker installation on latest rhel7 with an well running docker daemon. I start the daemon to be accessible from remote. As far as I understand the docker daemon is not secured by default.

/etc/sysconfig/docker
OPTS="-H unix:///var/run/docker.sock -H tcp://172.16.144.128:2375"

I opened the port 2375 in firewalld.

I can access via my browser

http://172.16.144.128:2375/images/json

and get a expected response.

When i now try to connect with JBoss Developer Studio and the Docker Tooling I'm not able to connect to the daemon. I see no error messages in Eclipse Error log to identify the problem. When I use the internal Eclipse web browser I can connect to the api.

All used versions have the latest available updates.

I stuck since days :-(

Some help out there :-)

ps: If this is not the correct forum, please move this post.