Secure your codebase: OpenVPN in the (Rackspace) Cloud at Mixpanel Engineering - 2 views
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awqi zar on 13 Sep 10OpenVPN is open-source software that allows you to set up a Virtual Private Network. Basically, it allows you to treat remote servers as if they were on your internal network. This gives you fine-grained control over everyone who has access to your systems. Each computer that has access to the VPN is a "client", and they each have their own certificate. If you want to remove someone's access to your network, you just revoke their certificate. It only takes a few seconds, and boom - problem solved. The engineer you fired can't access the MySQL server even if he knows the password because it's only accessible via the VPN.