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Hardening Linux
Brett Rilling

Linux Security Overview: (Brief Summary of Linux Security Areas)

  • Physical (Data Center, biometric, cabinet, lock)
  • Perimeter (Firewall, IDS, proxy)
  • OS Hardening
  • Application Security

OS Hardening Process:

  • Develop Secure Build Profiles
    • Perform min install
    • Incrementally add apps/utils until system functions for purpose
    • Harden OS
    • Use resultant hardened system as baseline for a secure build profile
  • Deploy Systems Using Appropriate Secure Build Profile
  • Continuously Audit Systems for nuances from Secure Build Profile

Harden OS:

  • Software Patching
  • File System Options
  • File Permissions
  • Remove Unnecessary Services
  • Lock down System Services
  • Secure Login Methods (Console and Remote)
  • Secure User Settings and Privileges
  • Logging
  • Third Party Applications


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Hardening Linux
Brett Rilling

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Page last modified on September 05, 2007, at 03:36 PM