CODEWITHSUNDEEP
dnsgeolocationserverload-balancinghigh-availability
anand
anand

Reputation: 1526

domain name to IP/Server mapping as per geolocation

Say I have a domain called example.com now there are two clients trying to connect it 

+----------+                                      +-------------+
| Client 1 |\                                     |             |
+----------+ \            +--------------+        |             |
(East Asia)   \---------> |              |        |             |
                          | example.com  | <--->  |   Server    |
              /---------> |              |        |             |
+----------+ /            +--------------+        |             |
| Client 2 |/                 (DNS)               |             |
+----------+                                      +-------------+
(North America)                               (sample application 
                                       server located in North America)

This causes big latency for clients in East Asia what I would like to have is:

                                                  +-------------+
                                                  |             |
+----------+                                      |  Server 1   |
| Client 1 |\                                /--->|  (Asia)     |
+----------+ \            +--------------+  /     |             |
(East Asia)   \---------> |              |-/      +-------------+
                          | example.com  |        +-------------+ 
              /---------> |              |-\      |             |
+----------+ /            +--------------+  \     |  Server 2   |
| Client 2 |/                 (DNS)          \--->| (N America) |  
+----------+                                      |             |
(North America)                                   |             |
                                                  +-------------+

My application is not using standard HTTP its a custom protocol in TCP and needs to maintain connection with the client.

How can I do this kind of mapping based on geo-location on same domain name.

Upvotes: 1

Views: 109

Answers (1)

user3967089
user3967089

Reputation:

Given the distributed nature of DNS, what you're asking for is really not easy to do (consider for example the case where both Client 1 and Client 2 are using Google's public resolver at 8.8.8.8 to do their lookups). If you really want to go that way, start looking at the web pages of the major DNS-server service companies and see if any of them offers it.

A probably much cheaper and easier alternative is to add a step to your application, where your server checks where the connecting client is coming from and can tell the client software "Go talk to this other server instead of me".

Upvotes: 2

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