There are many ways to download and install wget without having wget itself installed. For example, one can use curl, a sort of competitor to wget, or a package manager with libfetch or some other library-level downloader integrated (such as pacman). One may be able to use SSH’s scp or sftp utility or even use netcat to transfer a wget tarball over a network. But these methods of obtaining wget are not always feasible or even possible whereas a bash shell and a few core utilities are often readily available.

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The problem: you have a computer sitting behind a firewall. You want to access it from a different location, but you don’t have the ability to forward any ports to it. The answer: SSH tunneling.
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With the advent of powerline LAN from various manufacturers for a steadily decreasing price, designing network-connected products becomes much easier. Once the price of hardware for powerline networking drops due to wide acceptance, some standard “dumb” appliances and pieces of hardware could be easily and cheaply networked, allowing for a “home automation” of sorts, such as lightswitches and power outlets. (more…)