I'm writting a server program, don't know how far I'll get but I'm giving it a try. What I need to do is open a new port for each user (connection). How, programaticly, do I check if a certain ...

Test if Firewall is blocking a Port. Check which Ports are being used. Also learn how to check which process or service is using the open port.

Hello all!I have a firewall...but its probably a cheap one, because it does not have an option to block specific ports. It only allows to disable a given set of protocols. Of these protocols ...