3 Common DNS attack types and How to Fight Them

Do you want to learn more about DNS attack types? If the answer is yes, you are in the right place. In this article today, we will explore the 3 common ones and how to fight them. But first, let’s explain what a DNS attack actually is.

What does a DNS attack mean?

DNS was designed to reply to queries correctly and efficiently, not questioning their intent. As a result, DNS has significant flaws and the potential to be used as a conduit for cyber-attacks. So, we can say that a DNS attack occurs when hackers take advantage of weaknesses in the Domain Name System (DNS).

Continue reading “3 Common DNS attack types and How to Fight Them”

DNS Monitoring as an essential part of your Monitoring service

What is DNS Monitoring?

DNS Monitoring is an essential part of your network Monitoring service. Its purpose is to guarantee the security and proper connection between the users and the website or service that they are visiting. 

DNS Monitoring is very helpful for finding issues fast, identifying possible security breaches, or preventing some malicious attacks. It involves regular checks of the DNS records for any unexpected modifications or localizing DNS outages. That way, if an issue that will have a negative effect on your website or service is identified, it can be quickly resolved. 

Continue reading “DNS Monitoring as an essential part of your Monitoring service”

Primary DNS server explained

DNS is a network of name servers with a tree-like structure that makes them work together to resolve domain names to their IP addresses. They do it, so billions of users can enjoy the Internet the way it is right now. One of the key elements that allows it is the DNS delegation. One higher-level server can delegate a part of the namespace to a lower DNS name server, and that way, it became the Primary DNS server for the zone it got delegated. 

Continue reading “Primary DNS server explained”

DNS TXT record explained

Domain name system (DNS) records look like small components, but their role is really important. Those small pieces of data accomplish specific purposes. They are key for the Internet’s performance and its permanent interaction with domains.

Here you have what is important to know about the DNS TXT record.

What is the DNS TXT record?

TXT or text records are the ones that have text format data for external sources. This means sources outside domains like yours. Usually, on these records, you can find general domain information but also key data required for validation. Through TXT records, ownership of a domain can be verified, data for e-mailing can be validated, etc. 

This type of record was created for human-readable notes for administrators. But since text has become a common language for machines too, it is readable and understandable for both. This advantage makes DNS TXT records a vital tool for administrators to give instructions to machines through entering text into the DNS. 

How to create a DNS TXT record?

Continue reading “DNS TXT record explained”

What is DNS PoP?

PoP stands for point of presence, and it refers to the physical presence inside a location (usually data center) where multiple connected devices or networks share a connection and space.

Perhaps, most people relate PoP to the ISP PoPs (Internet service provider points of presence). It is the access point through the one users can connect to the Internet of their corresponding ISP. Big networks usually have many more PoPs.

PoPs usually involve different interface hardware necessary to operate (routers, switches, servers, multiplexers, etc.), and they are physically located in data centers.

Talking specifically of DNS PoP (Domain Name System Point of Presence), it is every spot where the DNS provider has a DNS server or servers, and users can set an authoritative name server for their domain name. The user can choose DNS PoPs included in the DNS provider’s network (different locations) to establish their CDN (Content Delivery Network). 

Continue reading “What is DNS PoP?”

DNS lookup – Why is it important?

When we think about building a website, we often neglect the DNS. Not that we don’t care about the speed. We are thinking about web site’s theme, menus, plugins, and somehow one key component for fast loading sites, the DNS lookup, often is forgotten. Let’s see why the DNS lookup is so important.

Continue reading “DNS lookup – Why is it important?”

5 most popular Nslookup commands

Nslookup is one very simple network tool, but with the big advantage that it comes pre-built on almost any OS, including different Linux distros, macOS, other Unix-based OSes, and Windows too.

You can use it for different network diagnostics and domain probing, but the 5 most popular nslookup commands are these:

Continue reading “5 most popular Nslookup commands”

5 Great Dynamic DNS providers

Are you looking for a great Dynamic DNS provider? Here we have a shortlist of the best choices of Dynamic DNS providers. All of them have excellent feature sets, good prices, and additional features that can benefit your work.

The following companies are organized in alphabetical order. You can check each one of them and see which fits your needs best. There are free and paid Dynamic DNS services. 

Continue reading “5 Great Dynamic DNS providers”

Why does DNS use UDP?

The Internet, and more specifically, DNS, is a constant communication process. Therefore there is a permanent exchange of data. There are different alternatives for transferring data through the Internet protocol (IP), UDP, TCP, RSVP, etc. Today, we will go around the user datagram protocol (UDP).

User Datagram Protocol (UDP) – fully explained

Continue reading “Why does DNS use UDP?”

Back to Top