Ways to protect against DDoS attack

In the current digital landscape, a DDoS (Distributed Denial of Service) attack is akin to an incessant barrage against your online fortress’s gates. It’s a common yet potentially devastating method used by cyber attackers to disrupt the flow of traffic to your website. This blog post aims to demystify DDoS attacks and offer concrete steps you can take to protect your digital domain.

What is a DDoS Attack?

A Distributed Denial of Service (DDoS) attack is a malicious attempt to disrupt normal traffic to a targeted server, service, or network by overwhelming the target or its surrounding infrastructure with a flood of Internet traffic. DDoS attacks are carried out using multiple compromised computer systems as sources of attack traffic. They can target a wide variety of important resources, from banks to news websites, and present a major challenge to ensuring information remains accessible.

How DDoS Attacks Work

DDoS attacks function by utilizing an army of compromised computers, also known as a botnet, to send a high volume of requests to a target’s IP address. With enough requests, the target is no longer able to process legitimate requests and thus becomes unavailable. The attacker can also exploit the complexity of DNS services by manipulating DNS records, or by attacking the DNS itself, which is a critical part of the web’s infrastructure responsible for translating domain names into IP addresses.

Ways to Mitigate DDoS Attacks

Protecting against DDoS attacks involves several strategies and solutions:

  • Utilize DNS Services: Implement robust DNS services that can handle high volumes of traffic and are resistant to DDoS attacks. Secondary DNS services can serve as a backup to the primary DNS service, providing redundancy.
  • Anycast DNS: Anycast DNS can distribute DNS requests among a network of servers in various locations, rather than just one. This disperses traffic across multiple points, making it harder for a DDoS attack to succeed.
  • Improve Network Security: This includes upgrading firewalls, switches, and routers that can help filter out malicious traffic before it reaches critical areas of the infrastructure.
  • DDoS Mitigation Tools: These are specialized solutions that can scrub traffic, singling out and blocking malicious packets, while allowing legitimate traffic to continue.

DDoS Attack vs. DoS Attack

While both DDoS and DoS (Denial of Service) attacks aim to disrupt service availability, the key difference lies in scale and origin. A DoS attack originates from a single Internet connection, while a DDoS attack comes from multiple sources and is often global, making it far more dangerous and challenging to mitigate.


In the digital age, DDoS attacks are a formidable threat to organizations of all sizes. By understanding what a DDoS attack is, how it operates, and the ways to mitigate such attacks, including leveraging DNS services and infrastructure, businesses can better prepare themselves against these digital onslaughts. It is not just about having the right tools, but also about understanding the intricacies of network traffic, DNS operations, and the difference between DDoS and simpler DoS scenarios.

Zone transfer – All you need to know about it

From keeping your website secure to improving speed and functionality, zone transfers are an important part of the Domain Name System (DNS). But what exactly is a zone transfer, and how does it work? In this blog post, we’ll explain more about it, how it works, and the many benefits it provides. So keep reading to learn everything you need to know about zone transfers and how they can help keep your website running smoothly.

Explanation of DNS Zone

A DNS Zone denotes a segment of the Domain Name System (DNS) hierarchy, managed by a specific entity or organization. It encompasses a set of DNS records delineating the associations between domain names and corresponding IP addresses or resources. Through DNS zones, administrators exert control over DNS configurations for their domains, encompassing settings such as name servers, mail servers, and other pertinent details.

What is a zone transfer? 

A zone transfer is a process used to duplicate DNS information from one DNS server to another. It is used to keep multiple DNS servers in sync with each other, ensuring that all DNS servers have the same information. This is important for ensuring users can access the correct website when they type in a domain name. Zone transfers are also used to back up DNS information so that the other servers can still provide the right data if one DNS server goes down. Zone transfers are an essential part of the Domain Name System (DNS) and are used to keep the internet running smoothly.

How does a zone transfer work? 

A zone transfer is duplicating a DNS database from one server to another and ensuring that all DNS servers have the same information about a domain. The process is initiated when a DNS server sends a request to another DNS server for a copy of the zone file. The receiving server then responds with a copy of the zone file containing all the DNS records associated with the domain. Once the zone file is received, the receiving server can then use it to update its own DNS database. This ensures that all DNS servers have the same information about a domain, which is essential for providing accurate and reliable DNS services.


Zone transfers are a great way to keep your DNS information up-to-date and secure. Transferring your domain name server (DNS) information between two or more DNS servers guarantees that your website is always available and your visitors can access it quickly. Zone transfers also provide many other benefits, including improved security, faster resolution times, and easier domain name management. With enhanced security, zone transfers can help protect your website from malicious attacks and ensure that your data is safe and secure. Additionally, zone transfers can help reduce the amount of time it takes for visitors to access your website, as the DNS information is quickly updated across all servers. Finally, zone transfers make it easier to manage your domain name, as you can quickly and easily make changes to your DNS records without having to manually update each server.

Bonus: What Zone shares is?

DNS Zone Sharing involves multiple domain names or entities utilizing a shared DNS zone for their DNS resolutions. Rather than managing distinct DNS zones for each domain, they leverage a unified zone, streamlining administrative tasks and reducing complexity in DNS management. This approach is commonly adopted by hosting providers, domain registrars, or organizations overseeing multiple domains, facilitating centralized control and efficient maintenance of DNS configurations. Through Zone Sharing, entities can consolidate their DNS resources, optimize resource utilization, and ensure consistent management practices across their domain portfolio.


In conclusion, zone transfers are an essential part of the Domain Name System (DNS) and are used to keep the internet running smoothly. By duplicating DNS information from one server to another, this process ensures that all DNS servers have the same information about a domain and provide many other benefits, including improved security, faster resolution times, and easier domain name management. Therefore, zone transfers are a valuable tool for any website owner or webmaster who wants to ensure their website is always available and secure.

Most popular DNS records – a brief introduction

Getting familiar with the Domain Name System (DNS) is not easy. But it is a must if you plan to have an online business. This brief introduction to the most popular DNS records can be one of your first steps into the DNS realm. Take it easy! Here we go.

What are DNS records?

Shortly, DNS records are text files with different information and instructions for DNS servers (name servers). Based on the DNS record, the information it will hold. It can be the IP address of a domain, аn instruction to manage DNS requests for that domain in a certain way, etc.

SRV record explained

Most popular DNS records

  1. Address or A /AAAA records

The two are address records. The difference between them is that A records work with IPv4 (32-bit address) and AAAA records with IPv6 (128-bit address). IPv6 is the latest version, and it is superior compared to IPv4, but still, both work. They have the same objective, to link a domain name with its corresponding IP address. They have a key role in the DNS resolution process that makes it possible for users to reach your website.

  1. Canonical name or CNAME record

The CNAME record points out that a hostname is the alias of another. It helps a lot to manage subdomains because by adding it, you don’t need individual records for every subdomain. A DNS request to a subdomain using a CNAME record will redirect the request to the canonical domain to obtain the proper answer.

  1. Nameserver or NS record

The NS record points out the DNS authoritative server for a specific domain. The authoritative server is the one that holds the original DNS records of the domain. You will need it, for instance, to inform other servers where they can request the associated IP address of your domain. It is not rare that a domain uses many NS records. This can be a sign that it has primary and secondary nameservers. NS record is, without a doubt, one of the most popular DNS records.

Suggested article: Why is it crucial to invest in Secondary DNS?

Configuring is a delicate task. A single typo in the configuration of the NS record will cause users can’t load your domain.

  1. Pointer or PTR record

The PTR record points an IP address to a domain name. It is an essential record for communication between machines. Humans work much better remembering domain names, but machines’ communication language is numbers. Again, a small mistake configuring PTR records can cause e-mails you send to go directly to spam.

  1. Mail Exchange or MX record

The MX record holds the information to know the mail server that must receive the e-mails sent to a specific domain name, yours, for instance. An error in its configuration and you will not receive the e-mails people (potential clients) send to your domain.


These are the most popular DNS records but not the only ones. As you see, they are essential for different processes to happen. Small files with a big job!