Purpose of DNS Load balancing
DNS Load balancing is a way of dispersing client requests across server computers using domain configuration. The domain name could be linked to a website, email system, or any other Internet-based service.
You should expect a significant volume of requests if you run a large and popular website. It must also be speedy, give up-to-date information, and accurately and swiftly answer requests. This is where the notion of traffic balancing comes into play.
Methods of DNS Load balancing
A DNS Load balancer can manage traffic in various ways, depending on its configuration.
- When the query arrives — This is a simple and straightforward technique to balance. The queries will be sent to a different server based on when they come. The first request, for example, will be forwarded to server one. The second request will be sent to server number two, and so on until the procedure is completed.
- The query’s origin — In this scenario, your DNS will look into where the traffic is coming from. Then, it will redirect it to a particular IP address, resulting in much faster and better overall performance. A service called GeoDNS is an excellent example of this form of Load balancing.
- Weighted balancing: One server will receive more traffic while the other will receive less. Everything is based on a variety of values from which to choose. For example, a figure like this may be the server’s computational power.
- Busy server – Depending on the workload of the servers, it is also possible to manage traffic. The queries might be routed to the second closest DNS server if the primary DNS server becomes overwhelmed. The network will continue to be effective and operate properly in this manner.
Load balancing is really beneficial. It has three significant advantages. The following is the list:
- Load balancing enhances the system’s reliability. This is because traffic is shared across multiple DNS servers. As a result, it reduces the likelihood of being targeted by DDoS attacks.
- It increases your security and reduces all threats. Why? It can examine incoming traffic since it is capable of doing so. As a result, it could look for errors in data packets and block malicious attempts to disrupt your DNS server. It could help you avoid significant difficulties like data breaches, phishing assaults on your customers, DNS downtime (DNS outage), and other problems.
- It also accelerates the process. That is beyond a shadow of a doubt. If there is a DNS network of servers that includes multiple sites worldwide, your visitor will obtain significantly faster responses. The importance of speed in SEO cannot be overstated. As a result, you can gain a considerable competitive edge with a properly configured DNS balancer.
Let’s make a conclusion. Balancing user traffic is critical for maximum transaction efficiency, whether a company utilizes a centralized business network for local application distribution or a Wide Area Network (WAN) for global distribution. The method of DNS Load balancing is one of the most essential approaches for managing network traffic. So, it’s worth trying it!