Defining DNS…. And What’s Exactly In It For Hackers?

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DNS isn’t exactly a buzzword in discussions among web hosting providers or those in the web hosting industry, but it’s darn close to it. DNS is an acronym for Domain Name Servers and what DNS does is see to it that after entering a website URL into your browser you then end up in the right spot – among the millions upon millions of them – on the World Wide Web.

DNS. Domain name system sign on white background

When you enter this URL, your browser starts trying to figure out where that website is by pinging a series of servers. These could be resolving name servers, authoritative name servers, or domain registrars, among others. But those servers themselves – often located all around the world – are only fulfilling an individual part in the overall process.

The process itself is a verification of identities by means of converting URLs into identifiable IP addresses, which the networks communicate with each other and by which your browser confirms that it’s taking you down the right path. In a world with literally billions of paths, that’s a more impressive feat than you might think, especially when you consider it’s done in mere seconds and with impressive consistency.

It’s quite common to hear of DNS in conjunction with DDoS, with is another strange acronym that is paired with the term ‘attack’ to create a phenomena noun. What DDoS is and how it’s related so explicitly to DNS much of the time is as follows:

A DDoS attack is a common hack in which multiple compromised computers are used to attack a single system by overloading it with server requests. In a DDoS attack, hackers will use often use infected computers to create a flood of traffic originating from many different sources, potentially thousands or even hundreds of thousands. By using all of the infected computers, a hacker can effectively circumvent any blocks that might be put on a single IP address. It also makes it harder to identify a legitimate request compared to one coming from an attacker.

The DNS is compromised in the way browsers essentially can’t figure out where to go to find the information to load on the screen. This type of attack happens typically involves hackers creating a little army of private computers infected with malicious software known as a Botnet. The people that are often participating in the attack don’t realize their computer has been compromised, and is now a part of the growing problem.

Why Go To So Much Trouble?

With all of this now understood, it begs the question – What’s in it for hackers to do this?

technology, cyberspace, virtual reality and people concept - man or hacker in headset and eyeglasses with keyboard hacking computer system or programming over binary code projection

It’s believed that the initial appeal of hacking is in proving that you can penetrate something / somewhere that’s purported to be impenetrable, and where someone with a skill set similar to yours has gone to significant effort to make it that way. It’s very much a geeks’ chest thumping competition – my virtual handiwork is better than yours!

As hackers become established and the ‘novelty’ of hacking wears off however, these individuals often find new inspiration for their malicious craft. The more time they spend doing it, the sooner they realize that a certain level of skills can introduce them to opportunities for making money with hacking. Among other scenarios, this can be either by stealing credit card details and using them to buy virtual goods, or by getting paid to create malware that others will pay for. And that happens much more often than you might think.

Their creations may silently take over a computer, or subvert a web browser so it goes to a particular site for which they get paid, or lace a website with commercial spam. As the opportunities in the digital world increase, hacking opportunities increase right along with them and that’s the way it will continue to be

Here at 4GoodHosting, we are constantly reevaluating the security measures we have in place to defend our clients’ websites from DDoS attacks, as well as keeping on top of industry trends and products that help us keep hackers and their nefarious handiwork away from you and your website. It’s a priority for sure.

DNS – “What Is It and How Does It Work?”

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DNS is an acronym that stands for “domain name system”. Without domain names, we wouldn’t have a way of getting to particular a website, such as numbers like 292.14.78.251, or worse the new ipv6 numbers that are much longer, too long in fact to provide an example here.

In this article we will give an overview of how D.N.S functions. The most important thing, that our web hosting customers can learn from this, is the process of how DNS records are changed, or updated to your web host’s “name servers” address’. These are important domain names which also rely on the DNS system to be converted into your webserver’s numerical IP-address.

“Name Servers”

Name servers enable people to use their domain name in order to access your webserver; which then in turn directs your site visitors to your specific web hosting account and files, rather than a complex IP address. DNS also makes economical “shared hosting” possible, since the server’s IP address can be reused for dozens of different websites.

Your name servers are the most important detail of your domain record, again their purpose is to redirect a visitor’s web browser to the place, that is web-server on a rack in a data-room someplace, where your site is being hosted.

Modifying your domain name server(s) enables you to change your web host without having to transfer your domain to another registrar.

Name servers can also be referred to as DNS servers; which can create confusion due to the two synonymous terms.

DNS Records

DNS refers to the layer of the internet stack, very similar to a database application, that contains the domain names, name servers, IP address’ and personal or company registration information encapsulating every public site on the Internet.
DNS records contain various types of data, syntax, and commands for how a webserver should respond to lookup requests.

Some of the most common syntax items defined:

· “A”-record. The actual webserver IP address that is associated with the domain.

· “CNAME”-record. CNAME indicates sub-domains that can be associated with your domain.

· “MX”-record. This refers to specific mail servers that might be optionally used in accordance with your domain, such as using gmail with your domain for email.

· “NS”-record. The nameservers that are currently set for your domain.

· “SOA”-record. Information about your domain, like when your domain was last updated and relevant contact information.

· “TXT”-record. Text about any additional information about the domain.

As you can see, there are numerous components of your DNS records, but most of this information can’t and shouldn’t be altered. The main component of your DNS records that will be of concern to you, if you ever have to change, is your name servers.

Changing Name Servers



Registrars are responsible for allowing you to edit your DNS record name severs. The default usually automatically assigns same host and registrar upon registration. Domain transfers usually carry over using the same name server information as from the previous registrar.

However, if your domain is not registered and also hosted in the same place, then you’ll follow the general steps below to update the name servers.

4GoodHosting customers can follow these instructions to change their name servers:

1. Locate Domain Management

Every registrar has domain management tools which allow you to edit your name servers. This ability will usually be found on the domain management area your client account/portal.

2. Find Your Name Servers

Under each of your individual domain(s) you’ll be able to change your name servers. Your name servers will look something like this:
ns1.4GoodHosting.com
ns2.4GoodHosting.com
You will need to change both the “primary” and “secondary” name server. The second server exists in the rare even that the first one crashes, or some other condition that prevents it from being resourced.

3. Setting New Name Servers

Simply change your existing name servers to the new name servers and click “Update” or “Save”. These changes don’t take place immediately across the entire internet. Domain name server updates usually take anywhere from 4-24 hours to ‘propagate’ throughout the global DNS internet system.

With this information, you are able to understand some key functionality of how the internet logically works. If you have any remaining questions concerning your domains or domain records, please contact us at support @ 4goodhosting.com for a rapid response to your inquiries.

Please contact us at one of the very best Canadian Web Hosting Companies, 4GoodHosting.