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How to Secure a Linux Server

A practical hardening baseline for production Linux servers, from SSH configuration through to malware scanning.

Photo by Uriel SC on Unsplash

A sensible baseline

  1. Key-based SSH authentication with password login disabled
  2. A firewall permitting only the ports you actually serve
  3. Automatic security updates, or a scheduled patching routine
  4. Malware scanning with automated cleanup
  5. Off-server backups that are tested by restoring them

Imunify360 License

Instant activation

A complete security suite for Linux hosting servers combining a web application firewall, malware scanning and automated patching.

Popular

From$2/mo

CXS License

Instant activation

ConfigServer eXploit Scanner detects malicious file uploads and exploits in real time on Linux hosting servers.

From$2/mo

JetBackup License

Instant activation

Backup and restore automation for hosting servers with support for many local and remote destination types.

From$2/mo

Intermediate18 min

How to Configure Imunify360

Set up Imunify360 firewall rules, malware scanning and Proactive Defense after installation.

Advanced25 min

How to Secure a cPanel Server

Practical hardening steps for a cPanel server, covering SSH, firewalls, malware scanning and updates.

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The Best Web Hosting Control Panels

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