Comment ouvrir le port 8000

Salut j"aimerai savoir comment activer le port 8000 pour la webradio, lorsque je fais le test voila le msg qui s'affiche:
41.249.13.47:8000 is Closed
Reason Given: Connection timed out
More about this error: This means that you are most likely behind a firewall, this error esentially says that you and your computer aren't there. You might also check to be sure that your ip is 41.249.13.47, if it is not then you are behind some sort of proxy.