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Security tutorial - IT technology blog
Posted inSecurity

SSH Security Best Practices: Key Auth, Fail2Ban, and Port Knocking Explained

March 11, 2026
Discover how to significantly enhance your server's SSH security. This tutorial covers implementing key authentication to replace passwords, using Fail2Ban to combat brute-force attacks, and setting up port knocking for an invisible SSH port, protecting your server from unauthorized access.
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Networking tutorial - IT technology blog
Posted inNetworking

Fail2Ban: Automatic Brute Force Protection for Linux Servers

March 6, 2026
Fail2Ban automatically blocks IP addresses that repeatedly fail authentication, protecting your Linux server from SSH brute force and web attacks. Learn how to install, configure, and tune it with practical tips from hands-on server hardening experience.
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