Latest Articles

  • Internet

    12 DNS Records Explained

    The domain name system (DNS) is integral to today's internet, and on the surface, it seems extremely complex. It's little wonder that DNS confuses so many people. However, if you get to know some of the most common DNS records – and how they're used – it's easy to get...

  • Networking

    Dismissing the Myth that Active Directory Requires Microsoft DNS

    Whether it’s the internet at large or your directory services-based network, DNS is the glue that holds it all together. A simple DNS failure can translate into total network failure, and because your network is your business, that translates into a business failure as well. The dependency of this critical...

    By: Brad Rudisail | Contributor

  • Techopedia-img

    DNS Zone File

    What Does DNS Zone File Mean?A Domain Name System zone file (DNS zone file) is a simple text file which is automatically bundled with DNS records. The file contains all the necessary information of all resources records for the particular domain. Alternatively, it can also contain the complete Internet Protocol...

    By: Margaret Rouse | Technology Expert

  • Techopedia-img

    Fast Flux DNS

    What Does Fast Flux DNS Mean? A fast flux DNS strategy is where a hacker or other party registers on a domain name system in deceptive ways that prevents host server IP addresses from being identified. It is a concern for security professionals because abuse of this system can help...

    By: Margaret Rouse | Technology Expert

  • Techopedia-img

    DNS Resolver

    What Does DNS Resolver Mean?A Domain Name System (DNS) resolver, more commonly referred to as a “DNS lookup” tool, resolves an individual host name to an IP address. This type of resolve command helps to figure out how Web services are hosted, how a domain name is supported and how...

    By: Margaret Rouse | Technology Expert

  • Cybersecurity

    Aggregated Security with OpenDNS

    With corporate security becoming such a nightmare for so many different firms, it makes sense for companies to go beyond just passive malware and antivirus solutions. These days, it seems like no matter how careful people are, employees or others will eventually click on some kind of problematic or nasty...

    By: Justin Stoltzfus | Contributor

  • Techopedia-img

    OpenDNS

    What Does OpenDNS Mean?OpenDNS is the name of a Domain Name System (DNS) service as well as of the company that provides that service. The OpenDNS service extends the DNS by incorporating features such as content filtering and phishing protection. It is also touted as faster, more reliable and having...

    By: Margaret Rouse | Technology Expert

  • Techopedia-img

    Round Robin DNS

    What Does Round Robin DNS Mean?Round robin Domain Name System (DNS) refers to a method of load balancing, load distribution or fault-tolerance provisioning of various obsolete Internet Protocol service hosts, such as FTP servers, Web servers, etc., by handling the responses of the DNS. This is for handling requests from...

    By: Margaret Rouse | Technology Expert

  • Cybersecurity

    Can DNS Be Considered Secure?

    In April, a Dutch hacker was arrested for what is being called the biggest distributed denial of service attack ever seen. The attack was perpetrated on Spamhaus, an anti-spam organization, and according to ENISA, the European Union's IT security agency, the load on Spamhaus's infrastructure reached 300 gigabits per second,...

  • Techopedia-img

    DNS Whitelist

    What Does DNS Whitelist Mean?A DNS whitelist is a collection of SMTP and email servers that are considered safe to exchange emails with. This list is used for email filtering purposes, allowing a system to block emails received from illegitimate or spam email servers. It's used to decrease the number...

    By: Margaret Rouse | Technology Expert