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This lesson covers service hardening, an important topic in the Linux Hardening module.
Core principles forms the foundation of this topic. In real-world scenarios, attackers leverage this knowledge to identify weaknesses that defenders often overlook. Understanding how service hardening works at a fundamental level is essential before attempting any practical exercises.
Building on that foundation, common attack vectors becomes critically important. Security professionals encounter this daily, and recognizing the patterns helps you work more efficiently during assessments.
Defense considerations represents another key consideration. Many beginners overlook this aspect, but experienced practitioners know it can make the difference between success and failure in real engagements.
Finally, industry best practices provides the practical context. Knowing when and how to apply these techniques separates theoretical knowledge from actionable skills.
For service hardening, professionals rely on Various security tools available in the sandbox. The sandbox terminal on the right provides access to these tools. Familiarize yourself with their basic usage, then answer the questions below to complete this lesson.
How do you harden services?
What is the main SSH config file?
What services are commonly exploited?
What command shows listening ports?
Found the flag? Submit it below to complete this lesson.
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