Re-2: [OT] on-rev urls

[Jim Ault]

On Apr 18, 2009, at 2:59 PM, Colin Holgate wrote:
>
>>
>> On Apr 18, 2009, at 5:43 PM, Scott Rossi wrote:
>>
>>> I believe you're generally supposed to allow 24 to 48 hours for  
>>> DNS changes
>>> to propagate throughout the Internet.
>>
>> It's the weekend, so it managed it a couple of hours. It was just  
>> odd that the second one took 60 times longer than the first one.

Actually, there are thousands of name servers around the world that  
need to be updated so that everyone can find your new installation.   
Some servers do the automatic update sooner than others.  When I type  
in a readable url (eg. www.google.com), my name server is right here  
in Vegas, so I can only see urls that they have cataloged on THAT  
server.  The name lookup is how the IP address is located in order to  
make the connection to a hosted site.

When you see the word 'propagation', it means that every ISP  
eventually updates their name servers so that your change becomes  
world-wide.  This may be why a collaborator you are working with may  
not see the domain change at the same time you do.  All should be well  
after 48 hours, otherwise their could be a glitch in the lookup table  
that you need to report.  Your ISP can help you with this.

Hope this helps.

Jim Ault
Las Vegas