Null Byte « WonderHowTo–
Ports allow network and internet-connected devices to interact using specified channels. While servers with dedicated IP addresses can connect directly to the internet and make ports publicly available, a system behind a router on a local network may not be open to the rest of the web. To overcome the issue, port forwarding can be used to make these devices publicly accessible.
Networked services and apps running on various devices make use of ports at specific numbers as a means to initiate connections and establish communications. Different ports can be used simultaneously to separate and… more
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