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Mirror a PHP/MySQL site

I have a nice reliable (underused) server at Rackspace.  I offered to host a site there for someone, because it's a site I use a lot, and it tends to go down regularly (bad hosting).  It's a PHP/MySQL site, and he'd rather that I mirror it rather than just host it.  Sounds fine to me, but how do you go about setting that up?  Also, is there a way to make his DNS point to my server if his goes down?
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To mirror MySQL, you need special setup, can only done if both servers are dedicated with root access. For web part, you can add one more A record for the domain  and point that to your servers IP. Also edit the DNS Record of the domain and reduce the TTL.

You need to move the DNS of the domain to a different server or use thrid party DNS service like www.ZoneEdit.com

aaroncampbellAuthor Commented:
Both servers are dedicated, with root access.
You can see how to cluster MySQL database at


This is not easy to do, you need to spend some time and need resources to get this  done.

It will be better to use a dedicated server for MySQL that way server load can be shared.
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