Chat program.

I made a GUI server and made it multiClient.
But it works only local.
What should change in Ip-HOST or in Port to make it Online?
That's probably just a NAT problem. You need to add a port forward in your router.
Have you tested it with other machines behind your router (ie same subnet)? If that works, but it doesn't work with machines out in the Internet then it's just a NAT issue as Athar said. Port fowarding or enabling UPnP should make it work.
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