Can´t access Backendless remotely

Hi guys, I have installed Backendless on my own server and everything works fine locally.
I have code generated an iOS app to test it remotely, but it is not connecting to the server. I also cannot access the dashboard remotely.
I have tried installing it with 127.0.0.1 and then the machine IP, but both installations didn´t work.
What I am missing here?

Sorry guys to bother, but I found out the opening ports with the desktop firewall app on CentOS 7 does not work at all, only through command line I was able to really open ports and then solve the issue.

So please, any Admin can close this question and mark it as solved/answered.