Common DNS Security Issues

Domain name servers translate human-read web website addresses into numerical internet protocols. DNS security is usually the top priority when setting up online networks.

Common DNS Security Issues

Sometimes, a domain name might appear to be private because they are sent using an HTTPS instead of an HTTP protocol. However, malicious masking or mirroring a domain can spoof a person into clicking on a link that later results in the download of malware. Other actions such as unauthorised redirection of one domain to another could also result in the same problem – security threats to computer users.

Registrar hacking is another common security issue. If a domain name and hosting account is accessed by someone else, that individual can make IP address changes. A domain, email and name server could be accessed by IP locations not originally assigned by a legitimate registrar. Thus, all important data is moved elsewhere and falls into the hands of identity thieves.

Sometimes, hackers can also use similar-sounding domain names to steal information from people. This particularly is the case when setting up catch-all email accounts. In a scenario like this, the setup of malicious emails typically results in unlawful information retrieval. This takes place as misguided email recipients replied to what they think is the “real” domain of a popular website or local business. However similar to the original company the misspelled name might sound, it might be set up by a hacker.

How to Address Security Problems

Network technicians can use precautions when working with DNS applications. For instance, it is recommended that Windows DNS users configure their networks to prevent cache pollution. Another common way to protect cloud data from hacking is to set a firewall to accept queries that only come from caching-only forwarders.

In addition, DNS system folders and subfolders can be set to only allow administrator access on a Windows machine. Disabling primary and secondary DNS zone transfers also will help because it prevents just anyone to make a query that could send domains to a malicious location.

Similar DNS security options are also available for Macintosh, Linux and other operating systems. In addition, various DNS resolvers and advertisers also limits who can make queries on specific IP addresses. This might not work for all publically accessed domains. However, some of these precautions would benefit companies who have work spaces set up in an internal cloud environment. More information can be found by visiting BlueCat.


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Norman
Norman


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