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How to secure an Ubuntu 12.04 LTS server steps?

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#1 vyjhala



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Posted 01 September 2014 - 06:31 AM

This guide is intended as a relatively easy step by step guide to:

Harden the security on an Ubuntu 12.04 LTS server by installing and configuring the following:

  1. Install and configure Firewall - ufw
  2. Secure shared memory - fstab 
  3. SSH - Key based login, disable root login and change port 
  4. Protect su by limiting access only to admin group 
  5. Harden network with sysctl settings 
  6. Disable Open DNS Recursion and Remove Version Info  - Bind9 DNS 
  7. Prevent IP Spoofing
  8. Harden PHP for security 
  9. Restrict Apache Information Leakage
  10. Install and configure Apache application firewall - ModSecurity
  11. Protect from DDOS (Denial of Service) attacks with ModEvasive
  12. Scan logs and ban suspicious hosts - DenyHosts and Fail2Ban
  13. Intrusion Detection - PSAD
  14. Check for RootKits - RKHunter and CHKRootKit
  15. Scan open Ports - Nmap
  16. Analyse system LOG files - LogWatch
  17. SELinux - Apparmor
  18. Audit your system security - Tiger   

Check steps from below link if want to secure your ubuntu server 12.04  LTS




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