The Internet is useful, but its huge flaw is that all it takes to find pornographic websites is a simple Google search. This is especially concerning if you have children. Fortunately, there’s a simple and free way to prevent access to Internet porn – changing the DNS server to one that blocks inappropriate websites. One such server is OpenDNS FamilyShield, which blocks lots of known and not-so-known websites, although other DNS servers exist. IP addresses of this particular server are 18.104.22.168 and 22.214.171.124. It’s best to set up the new DNS server on your router to protect all computers in your household. I’m not putting instructions on how to do this here because the process varies between operating systems and devices, but it’s easy to find necessary information on the Internet.