Category: Network

How does DNSSEC add an additional level of security?

DNSSEC is the most effective technique to secure your Domain Name System. We’ll explain why, what the phrase implies, and how you can benefit from it in this article. So, let’s keep it going.

The explanation of DNSSEC

DNSSEC is a collection of Security Extensions for the DNS that adds authentication and data integrity.

The Internet Engineering Task Force (IETF) invented it in the 1990s. Its primary goal is to provide an authentication method that uses digital signatures and public cryptography to prove the data’s origin. The data owner can use its private key to sign DNS data (DNS records) and ensure that the information is secure. Each recursive server can validate the data’s origin by comparing it to the public key.

It’s a complete chain of trust, beginning with the root server and ending with the exact hostname. Except for the root zone, which has nothing on top of it, each zone is signed by the one above it.

If the recursive server cannot authenticate the data for some reason, it will discard it and try again. It’s always better to be safe than sorry.

Is it advantageous?

The importance of DNSSEC may be summed up in two statements:

  1. You can ensure that the DNS data (DNS records) has not been tampered with by using DNSSEC. Consider what would happen if a cybercriminal modified DNS records on the route to the customer. The client can obtain a modified version of the product. A record that points to a server under the lousy actor’s control. There is a risk that the client’s data will be stolen. As a result, DNS cache poisoning is less likely. 
  2. Authentication of DNS data from a source. You can be sure that the data comes from a legitimate source and that the authoritative name server is valid using DNSSEC. It will prevent any bogus server forecasts.

Where can you get DNSSEC?

DNSSEC is not set up automatically. It is, however, straightforward to set up. As a result, most DNS hosting companies include it as a standard feature.

A substantial number of domains do not support DNSSEC. However, their entire worth is negligible. It can be used by well-known generic top-level domains (gTLDs) and country-code top-level domains (ccTLDs).

Simply enable it in the control panel of your DNS hosting provider to get started. Then look for DNSSEC and click “enable” for each DNS zone you want. After that, you’ll get a DS (Delegation Signer) record, which you should point to your domain’s registration information.

Conclusion

The decision to adopt DNSSEC to maintain DNS security is a wise one. Nowadays, cyber threats and direct DNS attacks are commonplace. Of course, DNSSEC is expensive, but you already know that the cost of preventing a criminal attack is always less than the cost of repairing the unintended consequences of a criminal attack.

Monitoring service explained for beginners

The topic of our discussion today is the Monitoring service. If you wonder what its main purpose is, why it is so beneficial for you and your business, and where you can find you, you are in the right place. So, let’s not waste any more time in idle talk, and let’s explore it! 

Monitoring service – Definition

Monitoring service is critical for delivering dependable service and a positive user experience. It also helps to identify problems with your services such as web, DNS, email, and so on. In addition, it provides precise information about the state of your servers and assists you in quickly identifying and resolving various issues.

You also have the option to monitor and notice the status of your servers in real-time. Any issues, such as a component failure or extremely slow traffic, will be straightforward to recognize and respond to.

Automatic notifications are also provided through the Monitoring service. As a result, if a problem arises, you will be notified via email, SMS, or other methods.

Why is it beneficial?

The Monitoring service has a number of notable benefits.

  • It assists you in avoiding outages.

Implementing a Monitoring service is perhaps the cheapest and most straightforward way to avoid outages in the first place.

  • Increasing the visibility of the network

The feature gives you the visibility you need to stay ahead of potential issues. Furthermore, displaying network performance data in a real-time and easy-to-understand format allows you to spot problems quickly.

  • Identify and resolve any issues as soon as possible.

Every digital organization, especially in downturns, needs to keep track of time. Problem-solving is easier and faster with the help of Monitoring. It will assist you in getting to the root of any problem. It makes no difference whether it’s a configuration problem or an unusual traffic increase.

Where can you find the Monitoring service?

We now have a better understanding of what the Monitoring service is and why it is so beneficial. But where can we find it? This is typically a paid service offered by DNS Hosting companies. UptimeRobot, Statuscake, ClouDNS, Zenoss, and many others are examples of good companies that have already established themselves as market leaders with the greatest quality. When selecting a supplier, you must be cautious because it can cost you unnecessarily spent resources. As a recommendation, look for a provider that offers a free trial. This will make deciding which service to use based on your business or personal needs much more effortless. Best of luck!

Conclusion

Ultimately, a Monitoring service is absolutely essential for your business to run smoothly and trouble-free. It avoids outages, increases visibility, and identifies the issues. So isn’t it worthwhile to give it a shot? Good luck!

What does Reverse DNS mean?

Reverse DNS is an absolutely beneficial instrument for every business. It will convert the IP address into the domain name. But what makes you think you’d want that? Let’s take a closer look at Reverse DNS to comprehend it better.

PTR record – definition

The PTR is a DNS record type that we use for Reverse DNS to connect IP addresses (both IPv4 and IPv6) to the domain name. For example, when receiving mail servers want to know where an email came from, they execute a rDNS lookup and seek for PTR records. The PTR records will ensure that the IP address is actually associated with the domain name.

The purpose of Reverse DNS

Reverse DNS, also known as rDNS, is a querying technique used by DNS (Domain Name System) to do a particular sort of query with an IP address (IPv4 or IPv6) as an input and a name record as an output (A record or AAAA record). It’s termed reverse because it works in the same way as a forward DNS lookup, which connects an IP address to a domain name.

If you wish to check a specific host, you can use rDNS. Each host connected to a network has an IP address as an identification. You can readily see the IP address, but you can also execute a reverse DNS lookup to view the domain name and decide whether or not to trust it.

When do we use a Reverse DNS?

Reverse DNS is really helpful. We can use it for a range of things:

  • rDNS is extremely beneficial to businesses. It ensures that all of their emails are effectively sent to their clients and that they are not labeled spam.
  • We use it to ensure that the IP address and domain name are identical in most cases. If they don’t match, a man-in-the-middle attack (phishing) with malicious intent is possible. When a discrepancy arises, it is a piece of sure evidence that a cybercriminal has altered the data, and there is a security risk.
  • Reverse DNS is commonly beneficial for owners of large IP networks to improve and organize them.
  • When looking through domain registration and registrar files, rDNS could be useful in locating the domain of a device that is attempting to crack a firewall, spammers, or hackers.

Can you check it?

Yes, you can. What only you need is a computer and IP address. But the verification depends on your Operating System. So let’s see the different possibilities, which are as follows:

  • On Windows

On the Windows operating system, you can use the Nslookup command. First, find the Command Prompt and open it. Then inside, type the following command:

nslookup 52.14.98.213

Note that this is an example of Internet Protocol. So you have to change it with the one which you want to make the verification.

  • On Linux and macOS

Here the procedure is similar. So first, you have to find the Terminal and open it. Inside, type the following command:

dig –x 52.14.98.213

The same applies here to changing the IP address.

Conclusion

Finally, we came to a conclusion. So you can safely assume that you understand what the Reverse DNS is for. It is really beneficial, and it’s worth giving it a chance!