Does DNS filtering still work?
DNS, or domain name system is how nice names like google.com get translated into an IP address and eventually find the server that has your content.
For this article we are going to focus on website filtering (or content filtering) since the goal is to block access to websites that are deemed inappropriate. This can be blocked by a parent, employer, ISP, or government regulation/policy.
Employers typically have an enterprise policy which gets pushed out to your web browser, and they often have a proxy at the edge of the network which does HTTPS inspection.
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