Tag: secondary DNS

Can we use free DNS? Free DNS vs. Premium

Martin Pramatarov / / DNS

If you are searching already free DNS, you know what DNS is and for what it serves. The DNS will resolve your domain name. If you have more DNS servers and they are spread around the world, this process will be faster, and it will reduce the load. It will even add an extra level of protection, imagine if one of the servers is down, the users can still find your domain using the rest of the DNS servers.

Free DNS

Free DNS

Different companies offer such a Free DNS plan like us from ClouDNS.net. With this plan, you can manage your DNS. It has many of the features of a professional DNS plan. You can use up to 4 DNS servers and 3 DNS zones. You will have three mail forwards. This plan is popular among people who need Dynamic DNS for their connected devices like CCTV cameras and other security measurements. It is used for personal blogs or parked domains.

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Primary DNS server

Martin Pramatarov / / DNS

We have already talked about what is DNS and what is a Secondary DNS, this time we will focus on the Primary DNS server. There is a DNS hierarchy in which the Primary DNS server is taking the central spot. It has the latest and full information, in comparison with lower level DNS servers who has just a cache of this information and with an expiry period.
Primary DNS

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A case study of the top 50 e-commerce sites and their DNS

Metodi Chukovski / / DNS

The recent Black Friday we again saw the news for record-breaking revenues and profits. Over the past few years, the web has gotten faster, according to Google, 53% of users will abandon a site if it doesn’t load within three seconds. By this, you can guess that for a shopping site, the speed of the website reflects its revenue. So, we want to see whether e-commerce sites got faster as well?

The DDoS attacks are also increasing. According to Kaspersky Lab 33% of organizations experienced a DDoS attack in 2017, compared to 17% in 2016. So we also want to know if the top shopping websites are well prepared for future attacks.

In this article, we will check with our DNS tool all of the top 50 E-Commerce websites. We will see if their speed and DDoS protection is fine or they will need to improve. Based on our research we will make recommendations how these websites can improve.

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DDoS attacks and how to protect ourselves

Martin Pramatarov / / DNS

DDoS Attacks are widespread threats on the internet. With the continually increasing numbers of connected devices and new innovative ways of hacking them, we can’t just stay and wait to get affected. We should smartly implement our DNS infrastructure and choose a trusted DNS provider to be safe and to evade the downtime of our services.
But to be protected, we must know the danger.

DDoS attack

DDoS attack (denial-of-service attack). There are few different types, but in general, a DDoS attack is an attempt to overwhelm the target (a computer, few connected computers or a whole DNS network) with high traffic from multiple sources.

DDoS attack and information security expert

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What is backup DNS?

Martin Pramatarov / / DNS

DNS is the backbone of the internet. It connects all the users to the content they need. It is a constant exchange of information, but sometimes the DNS fails and this cause downtime. A blackout period that can be evaded by using a backup DNS.

Backup DNS

Backup DNS, also known as Secondary DNS or alternative DNS is a system of one or more DNS servers, who have a copy of the zone data (DNS records) of the Master (Primary) DNS server. It adds resilience, reduce the outage periods by answering requests even if the Master is down.

It is easy to set up, and it can save you tons of problems. If your Master DNS got damaged and lost the information, you would still have a copy in your Backup DNS.

backup DNS

 

What is the worst that can happen? Dyn DNS attack of 2016

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What is a DNS zone? Master and Slave DNS zone and how to create it

Martin Pramatarov / / DNS

Do you know the difference between a Master (Primary) and a Slave (Secondary) DNS zone?

 

DNS zone

 

What is a DNS zone

First, let us explain what a DNS zone is. DNS zone is a container of DNS settings and DNS records of a DNS namespace. The DNS namespace can have single or multiple DNS zones, each managed by a particular DNS host/service. This division helps for the administrative purposes. It is like an enormous pie, each piece of it allows better separation of the administrative load and helps with redundancy.

Don’t directly associate a DNS zone with a specific domain. A DNS zone may contain multiple domain names or a single one; the important thing is that it is used for controlling a fraction of the namespace. DNS zones can be on the same servers too.

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What is Secondary DNS?

Martin Pramatarov / / DNS

We have already talked what is a DNS server or name server as it is also known. It is a complicated system that translates what we write (the domain name and address of a website that we desire) to IP addresses that computers and servers can understand.

Any DNS can be programmed to be primary (master) or secondary (slave), depends on the needs of the system as a whole. You can even have a primary DNS server that is secondary for another zone.

So what is the difference?

The hierarchy. The primary is the main one, and the secondary gets the DNS records from the primary. There are few different configurations of connecting the secondary that we would show you in a bit, but first, we want to explain to you why you need a secondary DNS.
If it does the same, why do you need it?

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