The receiver must set port of receiver to match port set in sender DatagramPacket. For debugging, try listening on port > 1024 (e.g. 5000 or 9000). Ports < 1024 are normally used by system services and need admin access to bind on such a port. If the receiver sends packet to the hard-coded port it’s … Read more
RMI generally won’t work over a firewall, since it uses unpredictable ports (it starts off on 1099, and then runs off with a random port after that). In these situations, you generally need to resort to tunnelling RMI over HTTP, which is described well here.
Use this command to find your active zone(s): firewall-cmd –get-active-zones It will say either public, dmz, or something else. You should only apply to the zones required. In the case of public try: firewall-cmd –zone=public –add-port=2888/tcp –permanent Then remember to reload the firewall for changes to take effect. firewall-cmd –reload Otherwise, substitute public for your … Read more
Thanks for the help everyone! Turns out that it was an iptable conflict. Two rules listing the port open (which resulted in a closed port). However, one of the comments by aka and another by manu2013 were problems that I would have run into, if not for the conflict. So! Always remember to edit the … Read more
Not sure if this is the best way, but running netsh should work: netsh firewall add allowedprogram C:\MyApp\MyApp.exe MyApp ENABLE I think this requires Administrator Permissions though,for obvious reasons 🙂 Edit: I just don’t know enough about ClickOnce to know whether or not you can run external programs through it.
Problem This problem has been around for a long time. Disable iptables in Docker will take other problems. Rollback changes first If you have modified your server according to the current solution that we find on the internet, please rollback these changes first, including: Enable Docker’s iptables feature. Remove all changes like –iptables=false , including … Read more