Starting out on sockets

Hi,
I'm just starting out on the subject of sockets by working through the trail 'Custom Networking'. But now it says:
"... The example program uses the host name taranis. This is the name of a hypothetical machine on our local network. ... change the host name to the name of a machine on your network..."
As I am working on a standalone machine most of the time, is there any way for me to simulate this? Can I call my own ports or install a piece of software that acts as a server?
Thx,
Jan

Ehm, could you give me an example? How do I translate
the example
Socket echoSocket = new Socket( "taranis", 7
to my own situation? In other words, how do I find
out which hostname to use for my PC?
(I am a beginner on this subject :-)Sure. The Socket initialization line would be:
Socket echoSocket = new Socket("localhost", 7);
I.e., just replace their example hostname with localhost.
That "7" is what is called the Port number. A Port is like a TV channel - it explicitly describes a particular connection on a networked machine. There are thousands of ports available (I think 64K are available, but it may be "just" 32K), and the lower 1K ports (1-1024) are reserved for system protocols (email, web, telnet, etc).
I'll just tell you now. Access to the first 1K ports is restricted to system-level permissions (root/Administrator). May I suggest changing the 7 to 1700? (1700 is arbitrary). When you go to write the server-side code, also use 1700. This will save you a "mysterious" problem when you get around to the server side.
-Brent

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