Anycast DNS

What objective does Anycast DNS serve?

What is the aim of Anycast DNS?

Anycast DNS is an extra service that you can find from DNS providers. It is a helpful traffic-routing system that delivers website material very quickly. That is made feasible by the multiple nameservers that keep a specific similar IP address.

Each of these servers is positioned in a different location to be closer to the possible users. The user experience is enhanced, and DNS query replies are significantly quicker as a result. The closest and most accessible server will fulfill the user’s request. As a result, your customers won’t have to wait long to access and browse your website thanks to the Anycast DNS service, which almost eliminates latency.

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Authoritative DNS server

Authoritative DNS server explained in detail

An Authoritative DNS server is a really essential part of the DNS resolution process. Why? Because it stores critical information about the zone records (SOA record, A record, etc.). In this article today, we will explain it in detail, its purpose, how you can check it, and the main difference between an Authoritative DNS server and a Recursive DNS server. So, if this matches your needs, let’s explore it!

Authoritative DNS server – Definition

An Authoritative name server responds to Domain Name System queries such as the IP address of a mail server or the IP address of a website (A resource record). It responds to DNS queries with unique and definitive replies. It does not just give cached responses retrieved from another name server. As a result, it only responds to requests regarding domain names stored in its configuration system. Authoritative Name Servers are divided into two categories:

  • A Master server (also known as a Primary name server) keeps the original master copies of all zone records. 
  • A Slave server (Secondary name server) is a copy of the master server.

How to check it?

The nslookup command, which is available on Windows, macOS, and Linux, is the simplest way to check the Authoritative DNS servers.

We’ll need to execute a DNS lookup for the NS DNS records, which will show all of the domain’s nameservers.

Open the Command Prompt on Windows or Terminal on macOS and Linux to get started. Then run the nslookup command as follows:

nslookup -type=NS highfive.me.uk

You’ll see a list of the domain’s nameservers, along with their IP addresses. You can replace “highfive.me.uk” with the domain name you want to verify.

Authoritative DNS server and Recursive DNS server – Main difference

An Authoritative DNS server responds to DNS requests using data configured by an originating source, such as a domain administrator or Domain Name System procedures. And in the meantime, a Recursive DNS server is a server that accepts a user’s website name or URL and checks Authoritative name server records to get the appropriate IP address. This is the primary distinction between an Authoritative DNS server and a Recursive DNS server.

Conclusion

You now have another piece of the DNS puzzle. What you should take away from this post is that the Authoritative DNS server is the one that stores DNS records and responds to DNS queries from Recursive DNS servers. Clearly defined, finding something on the Internet without the information they hold and the upgrades they allow and provide would be like looking for a needle in a haystack!

Monitoring service

Monitoring service – Why do you need it?

Monitoring service – definition

The Monitoring service gives you the ability to receive detailed information about the condition of your servers that you implement for your different services such as web, email, DNS, and many more. 

With it, you are able to check and understand the status of your servers in real-time. By constantly monitoring your network, you are going to have the opportunity to detect different problems like a component failure or really slow traffic. Additionally, such type of service is going to notify you automatically through email, text, or in another way like web hooks if an issue occurs.

The Monitoring service aims to spot network issues, for example, overloaded routers, server failures, or network connection problems.

Check the link to test a great Monitoring service!

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DDNS

DDNS (Dynamic DNS) – How does it work?

What is DDNS (Dynamic DNS)?

The DDNS abbreviation means Dynamic Domain Name System. It’s a very useful method to update your name server automatically and regularly. It updates IP addresses every time they change, together with their corresponding A (IPv4) and AAAA (IPv6) records. It saves you the time and effort of doing this task manually.

Internet service providers (ISP) constantly change IP addresses for clients. They have a big challenge administrating them, not to run out of them. They need a unique IP address for every device that gets connected to their network. 

Maybe as a regular home-Internet-user, you don’t get impacted by these constant IP changes. Businesses are a different story. If a business offers a service -or multiple services- through Internet, its servers for sure are affected by such IP address changes. Every change means a risk for its users requesting the service, not to have access since they are trying with a previous, not valid IP address.

Businesses have to look for alternatives:

  • A person in charge of constantly monitoring and changing the IP address manually whenever it gets changed by the ISP.
  • Paying to have a static IP address. It’s an expensive solution. IP addresses are not an unlimited resource, and to have sets or pools of them also has a cost for the ISPs. If they provide you a fixed IP address, they can’t use it for other clients.
  • Using DDNS to keep IP addresses up to date automatically. 

It’s not a hard quiz, right? Using DDNS is definitely the most simple choice. 

How does DDNS work?

Once you get the DDNS service, you won’t worry about monitoring and updating your IP address. But let’s go a bit deeper on how the process works.

Your business offers a service through the Internet. So you have your own server or servers. To make the service available for external users, you need to follow a few steps. Your business network (inside) has to communicate with the Internet through a network address translation (NAT) router. NAT will assign an IP address to your server/s.

Then, port forwarding will be required, plus an external port (Portex) and IP address (IPex). Done! The service is now available for external users via the Internet. At this point, IPex changes will become a problem or not if you get DDNS service. 

Once you get the DDNS service from a provider, DDNS software is set up on your network. IPex is added to the DDNS info, and NAT must be configured to update the IPex whenever needed and inform the DNS server about it. 

What NAT will ask you is to add your DDNS account and password, and that’s it! They will work together, communicate all the time, for you not to worry. 

Why use DDNS?

It brings very convenient benefits:

  • Easy to use solution. You get the service, the software is installed, and that’s it.
  • Notifications of IP changes to the DNS server are real-time.
  • Constant access to your server or website. Just by using the hostname, users will reach you, no matter if the IP address changes.
  • It’s a cost-effective solution. There are paid and free DDNS providers. It’s cheaper than paying static IPs for your business’ devices.
  • Remote access or VPN access will work smoothly for your employees working from home. 
  • Installation of security cameras on your business. They will need a connection to the Internet to work properly. With DDNS, they will keep available 24/7.
  • People using their computer at home for hosting an app, game server, website, etc., totally will feel the benefits of DDNS.

Conclusion

DDNS is very useful. If everything is set up correctly, it is a resource that won’t interfere with the performance of your system. Exactly the opposite. It will optimize it. Try it now!

DDoS Protected DNS

What is DDoS Protected DNS, and do I need it?

Statistics about Distributed Denial of Service (DDoS) attacks’ growth and frequency around the world are scary. Nobody wants to experience them, but there is no way to deny, anybody can be targeted. 

The time a DDoS attack can last is not a minor issue. Some have lasted a few hours, but others, days. Every hour your business is shut down means losses for you. Plus the cost for fixing the DDoS side effects on your site.

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GeoDNS explained

GeoDNS explained 

Every time users request a website, and it takes a long time to be loaded, they leave! Website owners know that it could be that the server is busy or the server is located too far from the user. But users do not care and just abandon the site and maybe never comes back.

That’s called latency. A severe problem for website owners that, fortunately, can be fixed!

What is GeoDNS, and how does it work?

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