The second command will only run if the first one finishes without errors. We can perform both of these tasks with a single command that uses & to chain two apt-get commands sequentially.
The IP address of our test unit is 192.168.4.18, so we type the following: ssh going to install new software on a Raspberry Pi, so it’s a good idea to update the repository indexes and install any available updates. To install a Privoxy, make an SSH connection to your Raspberry Pi. Once you’ve set the browser on the various machines on your network to use the proxy, all of the administration is performed on the proxy, rather than the individual devices. Because it’s centrally managed, it’s also easy to administer. Privoxy (the privacy-enhancing proxy) allows you to sidestep a lot of that. From a privacy point of view, though, the tracking and cross-correlation of everything you do on the internet is creepy at best, and invasive at worst. Much of the content you access freely on the web is only available due to funding from adverts. Of course, ad-blocking is a controversial topic. The hidden payload of snooping and privacy-invading cruft that often accompanies a visit to a website is removed. Any tracking scripts, adverts, or other unwanted material is stripped, so you only receive a clean web page. The proxy frisks the web pages it retrieves. This provides a degree of anonymity for the devices on your network.
If the proxy is happy with the website, it retrieves the web page and forwards it to the computer that requested it. It checks the web address (or URL) someone is trying to access, and, if it’s on the banned list or matches any of the banned criteria, the proxy refuses the connection.
The proxy intercepts HTTP and HTTPS traffic, acting as a border control officer. A web proxy sits between the computers on your network and the internet.
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