Illustration comparing SSH (secure remote shell) with SSL/TLS (secure web and transport encryption), showing keys, locks, and encrypted tunnels protecting data in transit. securely
Network Security Basics: Firewalls, VPNs, and IDS Explained
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How to Secure Your Linux Server from Attacks
Secure Linux server: update OSes and packages, enforce strong SSH keys and 2FA, configure firewall, disable root login, use SELinux/AppArmor, monitor logs, regular backups and IDS.
Cybersecurity Fundamentals for System Administrators
Shield over server racks with padlock, code streams and network nodes; system administrator checking alerts on laptop, illustrating cybersecurity fundamentals, best practices 24/7.