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LearnVPS & Self-HostingDefault Deny

Chapter 02 of 07 · VPS & Self-Hosting

Default Deny

A firewall you can trust is one that blocks everything and then opens only the doors you can name out loud. The dangerous port is never the one you meant to open — it is the database, the admin panel, the debug server you forgot was listening.

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1 lesson5 quiz questionsabout 3 minup to 40 XP
Start this chapterOnly What You Can Name
  1. Only What You Can Namechallenge3 min
  2. Practice quiz5 questions
Default Deny — VPS & Self-Hosting · ExploitQuest