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Navigation –

Traveling from place to place on a web page, a website or the Web, from information to information. It can also mean to search for information from a menu hierarchy or hypertext. Navigation in a hypertext environment (the Web) is a physical experience of scrolling, scanning and clicking, moving over the text with your mouse pointer and actively clicking on hyperlinks.

Netstat –

A utility that provides statistics on the network components, i.e., it shows the network status. It displays the contents of various network-related data structures in various formats. For example, it displays: all connections and listening ports (server connections are normally not shown), ethernet statistics, addresses and port numbers in numerical form (rather than attempting name look-ups), per-protocol statistics (shows connections for the protocol specified by protocol), and the contents of the routing table.