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How to See If Your ISP Is Throttling Netflix

There has been a whole lot of talk in the news lately of the rocky relationship between streaming giant Netflix and broadband internet providers. Is it possible to tell if your ISP is messing with your Netflix connection and …

What Is IPv6, and Why Does It Matter?

IPv4 addresses on the public Internet are running low. Microsoft paid $7.5 million for Nortel’s 666,624 IP addresses when Nortel went bankrupt in 2011 – that’s over $8 an IP address. IPv4 has technical problems, and IPv…

Do I Need a Firewall if I Have a Router?

There are two types of firewalls: hardware firewalls and software firewalls. Your router functions as a hardware firewall, while Windows includes a software firewall. There are other third-party firewalls you can install, too…

Is UPnP a Security Risk?

UPnP comes enabled by default on many new routers. At one point, the FBI and other security experts recommended disabling UPnP for security reasons. But how secure is UPnP today? Are we trading security for convenience when u…

What is DNS Cache Poisoning?

DNS cache poisoning, also known as DNS spoofing, is a type of attack that exploits vulnerabilities in the domain name system (DNS) to divert Internet traffic away from legitimate servers and towards fake ones….

What Does a Firewall Actually Do?

You’ve probably heard that firewalls are an important security protection, but do you know why that is? Many people don’t, if references to firewalls in TV shows, movies, and other forms of popular media are any indicatio…
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