Bastion Hosts Explained
In this video, I solve a very practical security problem: “How do I administer private servers without putting a giant ‘hack me’ sign on the internet?”
In many environments, especially cloud networks, your most important systems—databases, internal app servers, admin consoles—should not have public access at all. But administrators still need a way to get in for updates, troubleshooting, and emergency fixes. The naive approach is to open SSH or Remote Desktop directly to every machine. That works… and it also multiplies your exposed attack surface and makes it hard to track who did what.
A bastion host is one common answer. Think of it as a single, heavily defended doorway that all administrative access must pass through.
I define what a bastion host is, walk through how it works, compare it to firewalls, and answer the big question: does it replace a firewall, or does it work alongside one?
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Video Script
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