OS X Recovery requires access to specific Internet servers.
In order to reinstall OS X using the OS X Recovery or Lion Internet Recovery, you must be able to connect to the Internet. If your computer is behind an external proxy server or firewall, your network administrator will need to ensure that you can resolve DNS for the following hosts and contact them on ports 80 (HTTP) and 443 (HTTPS):
osrecovery.apple.com
oscdn.apple.com
Note: Each hostname may resolve to a different IP address each time it is used.
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OS X Recovery sends information that identifies the hardware model of your computer to Apple so that it can install the proper operating system. It does not send any personally-identifiable information.