Enterprise DNS Security – Why Is It So Important To Have?

June 3, 2016 No comments Tags:

DNS Security


When computers first hit the market, they came with very little security. Hackers can easily manipulate the codes within the computer in order to break in and steal valuable information. This was most commonly done through the IP address of a website on the internet. DNS, or Domain Name System, translates a website’s host name into its IP address and vice versa. In other words, DNS security makes our lives easier by allowing us to use the name of a website instead of remembering bunch of numbers.

How does it work?

Your computer uses a DNS server whether you are sending an e-mail or connecting to a website. It looks up the domain name you are trying to access. There are various DNS servers out there, so how does your computer know which one to use? It is identified through your personal WiFi network on your modem/router at home. The modem you are using sends signals to your computer, tablet, or mobile device which uses DNS servers when converting names to IP addresses. A website’s IP address can change over time, or have multiple addresses linked to a single website. DNS is able to keep up with these consistent changes because it is always evolving.

What kind of protection does DNS offer?

As mentioned previously, hackers can breach the internet security system pretty often. Thankfully, DNS has a firewall protection system built in to help identify and locate these attacks. This is necessary because conventional security methods do not appropriate DNS to its attackers location, so a DNS security blanket is required. It can protect against widespread threats such as phishing, malware, data theft, and much more. These viruses are usually hidden in your computer files and hard drive making them difficult to locate. DNS firewall helps pinpoint the exact location of a virus making it easier to extract and eliminate through an antivirus system. It can collaborate with modern antivirus’s efficiently to allow intelligence sharing of a threat to remove it from the system. Viruses are constantly evolving, and so is DNS protection to keep your computer safe from malicious threats.


Recent Updates on DNS Protection

DNS has been looking to increase the strength of its Zone Signing Key (ZSK), which is currently at 1024-bit RSA. By increasing this to 2048-bit, DNS will increase the size of responses from its servers. The only issue with this is the ability of the DNS servers to reach their destination. This may occur with more difficulty due to IP fragmentation because the size is too large. The good news is that all standard DNS responses are far below the threshold for the size limit at which fragmentation may occur. Either way, internet users should be able to receive larger responses if required. This change plans on taking place on October 1st, 2016.

Comments are closed.