Solved

Geographically Distributed Web Farm

Posted on 2009-07-09
2
468 Views
Last Modified: 2012-05-07
I'm trying to find a way to create a geographically distributed web farm but I need to maintain the authoritative DNS server on a windows based DNS server. I'm looking for a some sort of software or hardware option that will take two geographically separate web servers and allow them to share a single public IP address. This would need to be transparent to the end user in every way. They will only see the single public IP and never the IPs of the actual web servers.

The reason I need to allow two or more servers to share a single IP is that the customer portal that we use, needs to handle the DNS, and as you know, DNS cannot point to two addresses. So in order to allow DNS to allow access to either server at any one time, I will need a single public IP for both. I not have the option for have the same ISP at both server locations. If anyone has any clue on how I can accomplish this, I would greatly appreciate it.
0
Comment
Question by:one2onelanc
2 Comments
 
LVL 28

Expert Comment

by:Jan Springer
ID: 24818234
What you are referring to is "anycasting".  Take a /24 and announce it via BGP from two separate locations (and ASNs).   When the server at site A becomes unavailable, withdraw the route (on site A's router) which will result in all traffic forwarding to site B.  

If the machine is up but the webserver is down,  you will need a script that detects this and updates your router configuration for the route withdrawal for you.
0
 

Accepted Solution

by:
one2onelanc earned 0 total points
ID: 25045007
Thanks for the tip, management has decided to go with a Barracuda Load Balencer, which will soon include global load balancing and failover.
0

Featured Post

Create the perfect environment for any meeting

You might have a modern environment with all sorts of high-tech equipment, but what makes it worthwhile is how you seamlessly bring together the presentation with audio, video and lighting. The ATEN Control System provides integrated control and system automation.

Question has a verified solution.

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

This is a guide to setting up a new WHM/cPanel Server to be used for web hosting accounts. It is intended for web hosting company administrators and dedicated server owners. For under $99 per month (considering normal rate of Big Data Cetnters like …
Have you ever sent email via ColdFusion and thought of tracking this mail to capture the exact date and time when the message was opened ?  If yes, then this article is for you ! First we need a table user_email with columns user_id , email , sub…
In a recent question (https://www.experts-exchange.com/questions/29004105/Run-AutoHotkey-script-directly-from-Notepad.html) here at Experts Exchange, a member asked how to run an AutoHotkey script (.AHK) directly from Notepad++ (aka NPP). This video…
I've attached the XLSM Excel spreadsheet I used in the video and also text files containing the macros used below. https://filedb.experts-exchange.com/incoming/2017/03_w12/1151775/Permutations.txt https://filedb.experts-exchange.com/incoming/201…

830 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