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UFW (Uncomplicated Firewall) is the standard firewall front-end on Ubuntu and Debian. A correctly...

Rootkits are malicious tools designed to hide their presence while giving an attacker persistent...

Unpatched software is one of the most common ways servers get compromised. The...

Two-Factor Authentication (2FA) adds a second layer of protection to SSH: even if your password...

This is a condensed, copy-paste-ready runbook for securing a brand-new Ubuntu or Debian VPS...

Fail2Ban monitors your server's log files and automatically blocks (bans) IP addresses that show...

Your server's authentication logs record every login attempt, successful or failed. Reviewing...

A firewall and hardened SSH configuration protect against intrusion, but nothing protects against...

SSH is the front door to your VPS — and by default it listens on a well-known port, often...

Every new VPS is deployed with default settings that are convenient but not secure. This...