IP addresses on local network change

[Patrick O'Callaghan]

On Wed, 2014-10-08 at 06:42 +0800, Ed Greshko wrote:
> The analogy of the telephone number and extension is a good one.  The
> only thing I would add is that the extension (port/service) number is
> generally fixed, standardized.
> 
> A list is kept by the IANA (Internet Assigned Numbers Authority) and
> can be seen here....
> 
> http://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.xhtml

You can also see the default ports on your machine by looking
at /etc/services. Note that most of these are not normally active.

poc