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Old 09-30-2010, 11:14 AM   #1
cparapat
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Registered: Jun 2010
Location: Indonesia
Distribution: Mac OS X, Centos, OpenSuSE, Redhat, FreeBSD.
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Question Multiple IP Public like google.com


Dear friends,

I try to review google.com networks services. And I have some question need to understand.
I do a ping to google.com from my computer, and it give replying IP with i.e 64.233.181.105.
And then I stop it. And I try again, but it give a different result IP. i.e 64.233.181.147.
Again, I try to ping from another computer but different ISP, and it give a different result IP again. i.e 64.233.181.104.
My Questions is, what kind technical way they do ? As I know, it is like they do a load balancing for IP services. Would you want, explained how they do this technical way? Because I want to try to prepare the services like google.com do. What an application can i used to be able like this ?
Thank you very much, for sharing your experienced with me.

Regards,

Teddy.

Last edited by cparapat; 09-30-2010 at 11:16 AM.
 
Old 09-30-2010, 01:00 PM   #2
marafa
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Registered: Sep 2008
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you want to research round robin dns

you can also see the output with
dig www.google.com
and see all the ips resolving to this domain name
 
Old 09-30-2010, 03:00 PM   #3
cparapat
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Smile

Oh ya, Thanks marafa..
But, I try again in a different ISP and using a dig to google.com. but it give a different result. Before is, it shown 5 IP Public i.e ;64.233.181.105, 64.233.181.99, 64.233.181.147, 64.233.181.104, 64.233.181.103, 64.233.181.106.
But in another ISP it's only shown 1 IP Public. i.e; 72.14.254.104.
Why it can be like that ? I think, event if we used a different ISP it should be the same result, right ? Because it put in 1 domain, google.com. Please, i'm still don't getting clear here.
 
Old 10-01-2010, 02:59 AM   #4
Nemesiz
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Registered: Oct 2007
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http://en.wikipedia.org/wiki/Split-horizon_DNS
 
  


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