Firewall box with proxy open to the internet

I talked to an admin today. I’d never heard of the operating system of his server before, so he told me it was essentially a firewall. And yet, that box was serving as an open proxy.

I caught a spammer using it on my blog.

So whatever type of operating system you’re using, there might be a way to turn it against you. Please ensure that whatever you’re using is secure!

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