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Last Modified: 2015-03-26

I wan to block access to all robots except google, yahoo and msn to all of my website AND want to block one directory /i for ALL robots INCLUDING google, yahoo and msn. I have created following robots.txt. Can someone please confirm if this is correct? Also want robot not to kill my server therefore go as slow as they can.

User-agent: Googlebot
User-agent: MSNBot
User-agent: Slurp
User-agent: *
Disallow: /
Crawl-delay: 120
Disallow: /i/

I am using Apache on some machines and others are using Nginx all using CentOS.
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