VB.NET WCF Ports 1

[dBjason]

Hello,

I've been writing (several) self-hosted WCFs (hosted as a windows service).

Most of these are using TCP binding and function quite well.

My question concerns ports. In each app.config / web.config file, we're required to place a tag which usually looks something like this:

<baseAddress="net.tcp://ServerName:8080">

So, I ask, how does one determine an appropriate port to use? I know not to use any port numbers below 1025, but what about the others?

Should I also avoid any ports listed on this resource?

http://www.iana.org/assignments/port-numbers

Or does it really matter? Could I just randomly assign port numbers if they're greater than 1025?

Any help or light on this subject would be greatly appreciated.

Thanks,
Jason

 

[jebenson]

Basically you don't want to have 2 or more services/applications listening on the same port, as conflicts will occur. Many commercial programs listen on default ports (e.g., MS SQl Server listens on port 1433 by default). You should determine what ports are in use by both commercial and in-house applications and make sure your apps use different ports. Also, don't use any of the well-known ports for your in-house apps.



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