How to close a port in Linux

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I'm working on securing my Linux server by closing any unnecessary open ports. What are the steps to close a port, and are there specific tools or commands I should use? Should I be aware of any best practices or potential risks when closing ports, especially on a production server?

Insights on securely closing ports without affecting necessary services would be helpful.
Nov 13 in Cyber Security & Ethical Hacking by Anupam
• 3,890 points • 14 views

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