DNS content filtering refers to the process in which an Internet filter allows or blocks access to a specific website’s content according to its IP address and not to the domain name.
But before diving into what DNS content filtering is and why your business needs it, I think it wouldn’t be a bad idea if we talked a bit about something we all use, but do not completely understand – the Internet.
Well, as Chris Woodford mentions on his website, https://www.explainthatstuff.com/, the Internet functions through TCP/IP,
[…] which stands for Transmission Control Protocol/Internet Protocol. It’s the Internet’s fundamental “control system” and it’s really two systems in one. In the computer world, a “protocol” is simply a standard way of doing things—a tried and trusted method that everybody follows to ensure things get done properly. So what do TCP and IP actually do? Internet Protocol (IP) is simply the Internet’s addressing system. All the machines on the Internet […] are identified by an Internet Protocol (IP) address that takes the form of a series of digits separated by dots or colons. If all the machines have numeric addresses, every machine knows exactly how (and where) to contact every other