Go Premium for a chance to win a PS4. Enter to Win

x
?
Solved

Anycast method alternative for geo-based DNS servers

Posted on 2010-11-25
1
Medium Priority
?
889 Views
Last Modified: 2012-05-10
I've read about the 'Anycast' approach, this is what I understand so far:
1. A client queries a domain name, it receives a list of the domain's name servers, and their IPs from the roots
2. The client now chooses one name server IP randomly, and queries it for the domain name
3. The 'anycast' method routes this request to the nearest name server available, based on the origin of the client

Now I'm trying to understand the alternative to Anycast, this is what I think happens:
1. A client queries a domain name, it receives a list of the domain's name servers, and their IPs from the roots
2. The client now chooses one name server IP randomly and queries it for the domain name
3. There is no geo-decision while selecting the name server, but the name server serves the results according to a geographic location of the client's origin.

A. Am I accurate?
B. There is no way of serving a different name server, geo-based, other than Anycast?

Thanks,
Lubster
0
Comment
Question by:Lubster
1 Comment
 
LVL 7

Accepted Solution

by:
expert1010 earned 2000 total points
ID: 34214092
A) Not really. Anycast is when you have several DNSs placed in different geographic places (or at least in different places routing wise) but with the same IP-number for all of them. This means that you will go to the nearest (again, routing wise) DNS. Load sharing if you like.

B) There is other approaches. GeoDNS comes to mind. But you have to know more about your world around you not just standard DNS. Things such as routing, coordinates and stuff. One is the way Akamai do it. They use BGP and some other magic to find closest server.
0

Featured Post

Lessons on Wi-Fi & Recommendations on KRACK

Simplicity and security can be a difficult  balance for any business to tackle. Join us on December 6th for a look at your company's biggest security gap. We will also address the most recent attack, "KRACK" and provide recommendations on how to secure your Wi-Fi network today!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

BIND is the most widely used Name Server. A Name Server is the one that translates a site name to it's IP address. There is a new bug in BIND (https://kb.isc.org/article/AA-01272), affecting all versions of BIND 9 from BIND 9.1.0 (inclusive) thro…
Resolve DNS query failed errors for Exchange
We’ve all felt that sense of false security before—locking down external access to a database or component and feeling like we’ve done all we need to do to secure company data. But that feeling is fleeting. Attacks these days can happen in many w…
This lesson discusses how to use a Mainform + Subforms in Microsoft Access to find and enter data for payments on orders. The sample data comes from a custom shop that builds and sells movable storage structures that are delivered to your property. …

773 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question