Solved

Implementation of GeoDNS

Posted on 2009-07-09
2
1,128 Views
Last Modified: 2012-05-07
I would like to  implement geodns in our environment.Please help
0
Comment
Question by:USTRLLC
2 Comments
 
LVL 9

Expert Comment

by:michofreiha
Comment Utility
Dear Sir,

Kindly follow instructions in the below link and everything will work fne with you

http://www.maxmind.com/app/installation

Regards
0
 
LVL 6

Accepted Solution

by:
remeshk earned 500 total points
Comment Utility
Hi,



There are many databases and pieces of code out there that allow you to detect which country (or even city) a visitor to your website is from. Most of this code is intended to allow you to adjust the content of your website. Very useful. Really!
There are instances however where adjusting content is not enough. Sometimes you will want to redirect users to a server that is local to them. This could be because you have lag-sensitive traffic like VoIP of game servers. It could also be that you generate a lot of traffic and local traffic is simply cheaper than transit. Or maybe you have multiple entry points for VPN and email traffic into your corporate network. Whatever it is, the only way to do this transparently is to make sure your DNS hands out the right IP address to your users. Doing this based on ip-country databases is not ideal but it should get you a long way.
I looked around a bit for a way to do this. There are a few special DNS servers for this purpose. There are also some patches for Bind. Im not a fan of either special or patches though, they often imply maintenance.
So I wrote a little command-line script called geobind.php to convert the database provided by Webnet77 to Bind acls. (Requires PHP4 cli version to be installed; make sure to edit variables at the beginning of the script.)
Once you have these acls you can use Binds view functionality to serve different versions of your zone file to different parts of the world. Each zone file would of course point to IP addresses that are local to that specific part of the world.
Imagine you have 3 zone files: one for europe, one for the americas and one for the rest of the world. You simple edit named.conf.local to include the acls for europe and the americas. E.g.:
include "/etc/bind/named.conf.options";
include "/etc/bind/acl-europe_east.inc";
include "/etc/bind/acl-europe_sout.inc";
include "/etc/bind/acl-europe_west.inc";
include "/etc/bind/acl-europe_nort.inc";
include "/etc/bind/acl-america_cari.inc";
include "/etc/bind/acl-america_cent.inc";
include "/etc/bind/acl-america_nort.inc";
include "/etc/bind/acl-america_sout.inc";
Next you create seperate views. One for europe, one for the americas and one for everyone else.
view "europe" {
  match-clients {
    europe_east;
    europe_nort;
    europe_sout;
    europe_west
  };
  zone "peen.net" {
    type master;
    file "/etc/bind/europe/db.peen.net";
  };
};
view "americas" {
  match-clients {
    america_cari;
    america_nort;
    america_sout;
    america_cent
  };
  zone "peen.net" {
    type master;
    file "/etc/bind/americas/db.peen.net";
  };
};
view "others" {
  match-clients { any; };
  zone "peen.net" {
    type master;
    file "/etc/bind/others/db.peen.net";
  };
};
Reload Bind and see what happens!  
peen:~# rndc reload
0

Featured Post

How your wiki can always stay up-to-date

Quip doubles as a “living” wiki and a project management tool that evolves with your organization. As you finish projects in Quip, the work remains, easily accessible to all team members, new and old.
- Increase transparency
- Onboard new hires faster
- Access from mobile/offline

Join & Write a Comment

I have seen several blogs and forum entries elsewhere state that because NTFS volumes do not support linux ownership or permissions, they cannot be used for anonymous ftp upload through the vsftpd program.   IT can be done and here's how to get i…
Linux users are sometimes dumbfounded by the severe lack of documentation on a topic. Sometimes, the documentation is copious, but other times, you end up with some obscure "it varies depending on your distribution" over and over when searching for …
Learn several ways to interact with files and get file information from the bash shell. ls lists the contents of a directory: Using the -a flag displays hidden files: Using the -l flag formats the output in a long list: The file command gives us mor…
Learn how to get help with Linux/Unix bash shell commands. Use help to read help documents for built in bash shell commands.: Use man to interface with the online reference manuals for shell commands.: Use man to search man pages for unknown command…

743 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

Need Help in Real-Time?

Connect with top rated Experts

19 Experts available now in Live!

Get 1:1 Help Now