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Re: Moving web server to new IP



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We do this a lot. We just change the TTL on the domain to 0 and then
change the DNS as we see fit. There will be almost 0 hits to the old ip
since none of the root DNS servers are caching the records.

Simon wrote:
> Hi There,
> 
> I know this is strictly not a debian question, but i will be using
> debian todo it!
> 
> I need to move our web server to a new IP range. This is hosting
> around 300 websites, about 250 on 2-3 IPS (standard name based virtual
> hosts) and the rest on their own IPs (SSL hosts). All running on
> apache/php/mysql.
> 
> Im wondering how i can achieve this over a period of a week rather
> than all in one go.
> 
> My thoughts are to set up some sort of proxy to proxy the requests
> from one IP range to another. But, this would result in wierd hit
> stats (coming from the proxy IP rather than the client IP - i think).
> 
> Im wondering if this could be done with netfilter somehow? or some other
> way?
> 
> Moving mail and DNS is easy as i can use pedrition for the mail proxey
> and just run dual name servers until they are sorted as they are low
> overhead anyway.
> 
> Any input is appreciated.
> 
> Simon
> 
> 

- --
Greg Ryman
Network Engineering Supervisor
Candylogic, LLC.
gregr@candylogic.com
949-916-4444 x.203
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