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I want a separate production and test/dev instance. Is it possible to have two installs of wordpress multi on the same server, using different databases or do I need 2 servers, one for test and one for production?

I want to have a test instance where I can try out plugins, setting changes etc, without affecting my production instance

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Thanks for the answers. We ended up having two installs on the same server, each pointing at a different database and it has been excellent. – Purcell Jun 29 '11 at 16:59
up vote 2 down vote accepted

Yes, it's possible to have 2 WP MultiSite installs on the same server - just treat them as 2 separate virtual hosts, put the WP files in separate folders and use separate databases (although you can use the same database server)

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You can even use the same database and just use different prefixes. But I also use different databases, to keep things clear. – Jan Fabry Apr 26 '11 at 14:14
@Jan Fabry - very true, but this makes it harder to dump the particular set of tables for a blog if you need to! So, like you, I tend to create a new database per site – anu Apr 26 '11 at 14:15

Depending on your server, but I see no reason for this not to work. In fact I have the same setup of production and test multisite installations on one server.

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