How does a proxy server differ from a packet filtering firewall?

Both proxy servers and filtering firewalls are able to protect you from dangerous sites, and the difference lies in the way they do it. A proxy acts as a mediator between you and the material you are looking for. By using proxies, you allow them to firstly get your internet request, process it, and then give the results back. Sitting in between, proxies can also allow you to look through some blocked for your region materials. Filtering a firewall, on the other hand, directly blocks harmful sources without having to first report the result back to the server.

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