Re: tcp/ip ports. was exit pgm and lpar

["Simon Coulter" <shc@xxxxxxxxxxxxxxxxx>]

M
Hello Steve,

You wrote:
>If there were other socket apps on this system, I would not have a standard
>place to look to see which ports are used and which are available for use.

That's why the SERVICES file exists under TCP/IP.  It lists all the ports that
are used by some TCP/IP application.  That doesn't mean the port is currently
in use (that's what NETSTAT is for) but it does tell you which ports you
shouldn't use.  See the WRKSRVTBL command.  You should add an entry for your
application and retrieve that entry when your application starts to tell it
what port to use.  It is also a good idea to accept an optional parameter that
allows the port to be overridden for testing purposes.

Regards,
Simon Coulter.

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