DNS services explained in detail
DNS services are responsible for name resolution, routing emails, communication between IoT devices, CDN routing, and much more.
But what are they exactly? Let’s go into detail and explain the DNS services.
DNS (Domain Name System)
The DNS (Domain Name System) is a globally-distributed system for resolving domain names to IP addresses. It basically matches the hosts to their addresses and routes all the DNS queries.
Without it, it would be extremely hard to use the Internet. You would need to know all the IP addresses (IPv4 or IPv6) of the hosts you need to connect to.
DNS services explained
The DNS services are software that runs on DNS servers and allows you to manage your domain. You can purchase a plan for DNS services or use a Free DNS plan and manage your domain through it. Usually, the companies that offer such services will provide you with an easy-to-use interface for interacting with their service.
You can also rent servers and install DNS services on them, but it is more complicated.
DNS services allow you to fully manage your domain by adding and removing DNS records, adding and removing servers and zones, and more. Each DNS record type has its purpose: to point to a target, to announce a service, to route the traffic, etc.
You can have access to Primary and Secondary DNS servers. The Primary servers host the original DNS data, which you can modify on them. The Secondary just copy the data and serve to provide better and faster name resolution.
Not all DNS services are the same. Some DNS providers have a broad network of servers all around the world. That allows better DNS resolution, regardless of where the DNS queries are coming from.
Others focus on a particular region. For example, a DNS provider can concentrate on Asia, having more than 50% of their DNS servers there while almost neglecting the rest of the world. It could still be a good service if you are almost exclusively on the Asian market.
The DNS services strongly improve your uptime. Using a paid service, you will get access to multiple DNS servers. Even if one or two are down due to maintenance or cyber attack, you will still have more to answer the incoming queries.
When you check different providers, you will see many additional services. Let’s explain a few of them:
DDoS protection – Intelligent firewall that will protect you from DDoS attacks.
DNSSEC – additional features to encrypt the DNS queries and make them safer for your clients.
DDNS – Dynamic DNS for pointing your Dynamic IP address to a fixed name.
Load balancer – a method for managing the queries that improve network performance.
GeoDNS – load balancing based on the IP addresses of the visitors.
Reverse DNS – connects the IP address to a domain name and serves for verification.
DNS services help you host your DNS records and can provide better DNS resolution. You can also enjoy the benefit of multiple servers, additional and very useful features, and improved uptime.