I wrote a pair of apps, one a server and one a client, and they were free-standing java programs. They work seamlessly, only now we want to run the client from behind a firewall, and it's not working.

The two most common transport layer protocols are the transmission control protocol (TCP) and the user datagram protocol (UDP). One of the main differences between the two protocols is reliability.

Quick Java I/O question:<BR><BR>Let's say I've got a TCP socket open to a server, and I'm writing bytes out to the OutputStream (retrieved via Socket.getOutputStream().<BR><BR>I then call OutputStream ...