Dedicated Server Security Checklist: Complete Linux Server Hardening Guide
When a dedicated server receives a public IP address, it immediately becomes visible to automated scanners and botnets across the internet. Many administrators focus heavily on performance and scalability but overlook critical security controls that protect production environments from compromise. A strong security posture starts with securing SSH access. Password authentication should be disabled in favor of modern key-based authentication, and multi-factor authentication should be implemented for administrative accounts whenever possible. Network security is equally important. A properly configured firewall using UFW or Firewalld should follow a default-deny approach, exposing only the services that are required for business operations. Intrusion prevention tools such as CrowdSec and Fail2Ban can further reduce exposure to automated attacks and brute-force attempts. Modern Linux security also extends beyond traditional log monitoring. Runtime security platforms such as Falco, ...