Operating System Security Fundamentals

Infrastructure & DevOps Security 101 chapters

Table of Contents

  1. What is Operating System Security
  2. Core Security Principles for OS Hardening
  3. Common OS Vulnerabilities and Attack Vectors
  4. Linux vs Windows Security Architecture
  5. Security Standards and Compliance Requirements
  6. Planning Your Security Hardening Strategy
  7. Windows Security Model Overview
  8. User Account Control and Privilege Management
  9. Windows Defender and Built-in Security Features
  10. Active Directory Security Fundamentals
  11. Registry Security and Configuration
  12. File System Security and Permissions
  13. Network Security Features in Windows
  14. PowerShell Security and Logging
  15. Windows Server Hardening Specifics
  16. Linux Security Model Fundamentals
  17. File Permissions and Access Control Lists
  18. SELinux and Mandatory Access Control
  19. AppArmor Alternative Security Framework
  20. Linux Kernel Security Features
  21. PAM Authentication Framework
  22. Linux Firewall Technologies
  23. System Auditing with auditd
  24. Container Security in Linux
  25. Password Policy Implementation and Management
  26. Multi-Factor Authentication Implementation
  27. Principle of Least Privilege Implementation
  28. Account Lifecycle Management
  29. Service Account Security
  30. Privileged Account Management
  31. Guest and Temporary Account Controls
  32. Understanding Firewall Types and Technologies
  33. Windows Defender Firewall Configuration
  34. Linux iptables Firewall Mastery
  35. Modern nftables Implementation
  36. Zone-Based Firewall Strategies
  37. Application-Specific Firewall Rules
  38. Firewall Logging and Monitoring
  39. Performance Optimization and Troubleshooting
  40. Understanding Patch Management Fundamentals
  41. Windows Update and WSUS Configuration
  42. Linux Package Management Security
  43. Vulnerability Assessment and Prioritization
  44. Testing and Validation Procedures
  45. Automated Patch Deployment Strategies
  46. Compliance and Reporting
  47. Emergency Patch Management
  48. Modern Malware Threat Landscape
  49. Windows Defender Advanced Configuration
  50. Linux Antivirus Solutions Comparison
  51. Real-time Protection vs On-Demand Scanning
  52. Behavioral Analysis and Machine Learning
  53. Quarantine and Remediation Procedures
  54. Integration with Security Operations
  55. Performance Impact Mitigation
  56. Understanding Ports and Network Services
  57. Port Scanning and Discovery Techniques
  58. Identifying and Closing Unnecessary Ports
  59. Service-Specific Hardening
  60. Port Knocking and Dynamic Port Management
  61. Network Segmentation and Port Isolation
  62. Port Monitoring and Alerting
  63. Understanding Security Audit Logs
  64. Windows Event Log Configuration
  65. Linux Audit Framework Configuration
  66. Log Collection and Centralization
  67. Log Analysis Tools and Techniques
  68. Real-time Security Monitoring
  69. Compliance and Audit Reporting
  70. Understanding Encryption Technologies
  71. Windows BitLocker Configuration
  72. Linux LUKS Implementation
  73. File and Folder Encryption
  74. Network Encryption Protocols
  75. Key Management Best Practices
  76. Performance Optimization
  77. Automation Framework Fundamentals
  78. PowerShell Security Automation
  79. Linux Security Automation with Bash
  80. Python for Cross-Platform Security Automation
  81. Configuration Management Integration
  82. Security Orchestration and Automated Response
  83. Incident Response Framework Development
  84. Digital Forensics and Evidence Collection
  85. Containment and Eradication Strategies
  86. Recovery and System Restoration
  87. Lessons Learned and Continuous Improvement
  88. Executive Summary
  89. Incident Timeline
  90. Root Cause Analysis
  91. Primary Root Causes:
  92. Contributing Factors:
  93. What Went Well
  94. What Needs Improvement
  95. Lessons Learned
  96. {{ lesson.category }}: {{ lesson.observation }}
  97. Improvement Action Plan
  98. {{ improvement.action }}
  99. Follow-up Actions
  100. Appendices
  101. Conclusion