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How to Hardening Linux Server?

Sarah Jenkins • • 7 min read
How to Hardening Linux Server?

A few basic Linux hardening and Linux server security best practices can make all the difference, as we explain below:
  1. Use Strong and Unique Passwords. ...
  2. Generate an SSH Key Pair. ...
  3. Update Your Software Regularly. ...
  4. Enable Automatic Updates. ...
  5. Avoid Unnecessary Software. ...
  6. Disable Booting from External Devices. ...
  7. Close Hidden Open Ports.

How do I lockdown a Linux server?

7 steps to securing your Linux server
  1. Update your server. ...
  2. Create a new privileged user account. ...
  3. Upload your SSH key. ...
  4. Secure SSH. ...
  5. Enable a firewall. ...
  6. Install Fail2ban. ...
  7. Remove unused network-facing services. ...
  8. 4 open source cloud security tools.

How do I harden my server?

Server hardening: Put all servers in a secure datacenter; never test hardening on production servers; always harden servers before connecting them to the internet or external networks; avoid installing unnecessary software on a server; segregate servers appropriately; ensure superuser and administrative shares are ...

Sarah Jenkins
Author

Sarah Jenkins

Sarah Jenkins is a veteran tech journalist with over 12 years of experience covering artificial intelligence, mobile innovations, and digital ethics. Her insights have appeared in leading technology publications worldwide.