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Why Knowledge Regarding DNS Security is More Crucial than You Think
The primary function of a DNS server is to translate domain names (like wikipedia.com) into IP addresses (like 184.108.40.206) and it does this for every single site that you open in your browser. It does not matter how fast your Internet speed is; a site won’t load at all unless the DNS server has carried out the lookup successfully.The DNS is akin to a telephone directory for the Internet. It is quite easy to look up the phone numbers of any of your known acquaintances if you know their names. DNS provides this same facility for internet browsing.Without DNS, you would only be able to visit any website by visiting the IP address associated with it directly, such as http://214.13.258.101.
For enterprises, it's their digital distinctiveness as well as a perilous component of their safekeepingstructural security. Like all technology, though, it is susceptible to threats. Too often, the always-on, pervasive nature of DNS offers itself to being disregarded. Today, let’s look at five common threats that clout DNS:
- DDoS - Distributed denial of service attacks (DDoS) are not hazard specific to DNS. However, the DNS is principally helpless against such outbreaks because it designates a logical block point on the grid, all too often overlooked when establishments are capacity-planning their groundwork.
- DNS amplification -It is a scheme used in DDoS attacks that leverage DNS servers arrayed in diffident “recursive” conformations. Recursion is an attribute of DNS that sanctionsthe domain name resolution to be offeredonto more forceful name servers.
- Registrar Hijacking - The major chunk of domain names are itemized via a bursar company, and these represent distinct points of disaster. If an attacker can hack into your account with your preferredbursar, they setback control over your domain name, yielding them theregulatory authority to point it to the servers of their selection, comprising name servers, Web servers, email servers, etc.
- Cache poisoning - Whenever you send an email or visit a website, your processor is probably expending DNS data that has remainedhoarded somewhere on the complex grid, such as with your ISP. This increases the output of the Internet and diminishes the burden on the various archives that affordcommanding DNS responses.
- Typosquatting - The exercise of cataloguing a domain name that is disconcertinglycomparable to an existing popular brand – typosquatting -- is often deliberated a challengingpitch for copyright and trademarkprosecutors.
The DNS works in a series of steps:
- It requests the information locally by asking your computer.
- Upon failing to get the required information, it initiates a DNS query and asks the recursive DNS servers to perform the legwork so as to resolve the hostname.
- If it fails here too, it goes to the root name servers which answers questions about IP addresses.
- Thereafter, it is directed to TLD name servers that point the query towards the authoritative DNS servers.
- Finally, the required record is found and the query is answered and the hostname is resolved for the user DNS which originally requested it in the first place.
This entire chain, from beginning to the end, takes only a fraction of a second to be carried out. A dependable DNS is vital to your online presence. Bluecat provides highly effective DNS security custom designed according to your requirements. Whether it be sending messages or surfing the web, DNS availability is a must. Hence, take heed and have a look at your DNS today.