Are you building or managing a network? Congrats! That is a titanic job, but also exciting, especially if it’s a large network. A lot of stuff must be considered for it to work properly. For instance, have you ever thought about how the massive amount of data packets is handled within a network? Well, this task is possible thanks to routing methods, like Anycast DNS.
What is Anycast DNS?
Anycast DNS is a method for networks to route and address data packets. When you use it, a destination IP address is shared by different servers (or other devices) in different locations. Like this, routers (recursive servers) direct data packets addressed to such a destination to the closest location to the source or sender.
How can Anycast DNS improve your network?
It speeds the answer to DNS requests.
Think about your network, visualize all the multiple nameservers located globally. Each of them holds a copy of the DNS data of your domain. Well, all of them can share the same IP. So, when there’s a DNS request of your domain, it can be routed to the nearest DNS server to the geographical location where the request was originated.
If the nearest DNS server is down, the next closest server to the same IP address will answer the DNS request.
It provides redundancy.
With Anycast DNS, you count on a network, integrated by many nameservers. All of them will share the same IP address. If the closest DNS server to where the request was produced is down and can’t answer, the recursive server will keep searching until it finds another Anycast DNS server that can respond. The search for a second or a third server to respond will take a little bit more time, but we talk about milliseconds. It won’t really annoy your users. And once the server or servers that were down get fixed, they will get back to their job again.
Load balancing is absolutely possible through Anycast DNS.
While speeding the answer to the DNS requests, you make traffic considerably more agile. And having multiple servers answering DNS requests to the closest users can avoid stress for one or a few servers that are constantly demanded. Traffic can be distributed and the workload balanced through all the servers of the network. This advantage becomes a gold one if you think about DDoS attacks. Basically, they look to drown your servers by sending huge traffic amounts. With Anycast DNS, you can distribute even malicious traffic, not to be a threat.
It allows scalability.
Especially cloud-based Anycast DNS providers make scalability up or down possible and easy. You can add or remove DNS servers based on your needs. You can move from basic plans to more robust ones when you require them.
It can be set up easily.
Quality managed DNS providers include Anycast DNS in their menu, making its configuration an easy task.
It manages the traffic better and prevents chaos.
Just think how much data will be traveling across your network every single second! And they can’t just travel randomly. A source produces every data packet, and it has to be delivered to a destination. Selecting the most convenient paths to dispatch all this traffic is key for a network not to become chaotic. So a routing method like Anycast DNS is a vital ally for you!
Routing communications on networks is essential! Don’t hesitate! Getting Anycast DNS will mean a major improvement for your network.