DNS security

    DNS Security

    Cache Poisoning

    Also known as DNS spoofing, in these types of attacks, the DNS servers are made to return an incorrect resource address, thereby diverting traffic to the attacker's computer

    DDoS

    Distributed Denial of Service attacks are primarily disruptive in nature and aim at slowing the response of the website until the service becomes unavailable

    Man In The Middle

    The DNSSEC (Domain Name System Security Extensions) is a set of specifications which provide data integrity and origin authentication of DNS data to DNS servers.

    DNS or Domain Name System is a protocol which, in simple terms, is responsible for the translation of web addresses into IP addresses and hence enables web browsing over the World Wide Web as we know it. It is an integral part of the working of the Internet and how web pages and web addresses are retrieved. It is a collective segregation of all the resources which store the IP addresses of the DNS name servers which in turn have the control over every single registered domain name. When a person buys a domain, the domain registrar essentially assigns a minimum of two name server IP addresses to the domain and these name servers ensure that the correct web host is then referenced to retrieve the content.

     

    Despite being an important component in the network infrastructure, DNS security is an aspect quite often overlooked. It is always strongly recommended that your infrastructure should comply with DNS security guidelines, failing which your servers can be under a host of attacks. The most common attacks on DNS servers include cache poisoning, phone call redirects, man in the middle, email rerouting, denial of service and others.

     

    The primary concerns for the vulnerability of DNS date back to the initial stages of its development. It was designed when the internet used to be a much closed community used mostly by government organizations and universities. It was the default assumption that the requests coming then were genuine and legitimate. It is integral to discuss some of the above threats in order to develop a greater understanding about them.

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    Latest Articles

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      As new devices connecting to the network increases, the traditional enterprise security becomes more susceptible to direct attacks. Unlike DNS firewalls, conventional security solutions do not provide a broad-based solution that covers all devices and apps. Nonetheless, this firewall leverages the pervasiveness of traditional enterprise security to identify malicious activities before they reach an enterprise data or apps. All devices use DNS as the starting point for connecting to all sites and applications. With a DNS firewall such as BlueCat Threat Protection, an enterprise is protected against infected devices and malicious internet locations. By leveraging the pervasiveness of traditional enterprise security, a DNS firewall secures an enterprise against all malware infections. There are additional resources available at www.bluecatnetworks.com.

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      An act as simple as adding a secondary provider for a layering of protection against DNS outage is one of the most cost-effective actions you can take. This maneuver would have saved a lot of hassles for some major companies in 2016, at the height of DDoS attacks. The information at www.bluecatnetworks.com is useful and can provide you with additional insights.

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      While most network administrators use DNS security measures to secure DNS infrastructure from different attack vectors, there are far more security related controls and intelligence benefits that you can draw from DNS and use to your advantage. Without much ado, the following are some of the ways that you can use DNS to mitigate known and unknown security threats to your network. Visit BlueCat Networks if you are interested in learning more information.

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