Re: Finding all machines on a network that are listening on a port

["Aaron Ballman" <aaron at realsoftware dot com>]

> What is the best way to find machines on a network that have ports open.
> eg I want to find all the machines on the local network that have port
4563
> open

You are wondering how to do a "port scan" and the short answer is: why do
you need to do this?  It's complicated to do it properly.  If you just need
something very simple and don't mind abusing the local network, then you can
simply loop over all the local addresses (using the netmask to determine
what IPs are "local") and try connecting on that port.

HTH!

~Aaron

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