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Chapters

What is Operating System Security
Core Security Principles for OS Hardening
Common OS Vulnerabilities and Attack Vectors
Linux vs Windows Security Architecture
Security Standards and Compliance Requirements
Planning Your Security Hardening Strategy
Windows Security Model Overview
User Account Control and Privilege Management
Windows Defender and Built-in Security Features
Active Directory Security Fundamentals
Registry Security and Configuration
File System Security and Permissions
Network Security Features in Windows
PowerShell Security and Logging
Windows Server Hardening Specifics
Linux Security Model Fundamentals
File Permissions and Access Control Lists
SELinux and Mandatory Access Control
AppArmor Alternative Security Framework
Linux Kernel Security Features
PAM Authentication Framework
Linux Firewall Technologies
System Auditing with auditd
Container Security in Linux
Password Policy Implementation and Management
Multi-Factor Authentication Implementation
Principle of Least Privilege Implementation
Account Lifecycle Management
Service Account Security
Privileged Account Management
Guest and Temporary Account Controls
Understanding Firewall Types and Technologies
Windows Defender Firewall Configuration
Linux iptables Firewall Mastery
Modern nftables Implementation
Zone-Based Firewall Strategies
Application-Specific Firewall Rules
Firewall Logging and Monitoring
Performance Optimization and Troubleshooting
Understanding Patch Management Fundamentals
Windows Update and WSUS Configuration
Linux Package Management Security
Vulnerability Assessment and Prioritization
Testing and Validation Procedures
Automated Patch Deployment Strategies
Compliance and Reporting
Emergency Patch Management
Modern Malware Threat Landscape
Windows Defender Advanced Configuration
Linux Antivirus Solutions Comparison
Real-time Protection vs On-Demand Scanning
Behavioral Analysis and Machine Learning
Quarantine and Remediation Procedures
Integration with Security Operations
Performance Impact Mitigation
Understanding Ports and Network Services
Port Scanning and Discovery Techniques
Identifying and Closing Unnecessary Ports
Service-Specific Hardening
Port Knocking and Dynamic Port Management
Network Segmentation and Port Isolation
Port Monitoring and Alerting
Understanding Security Audit Logs
Windows Event Log Configuration
Linux Audit Framework Configuration
Log Collection and Centralization
Log Analysis Tools and Techniques
Real-time Security Monitoring
Compliance and Audit Reporting
Understanding Encryption Technologies
Windows BitLocker Configuration
Linux LUKS Implementation
File and Folder Encryption
Network Encryption Protocols
Key Management Best Practices
Performance Optimization
Automation Framework Fundamentals
PowerShell Security Automation
Linux Security Automation with Bash
Python for Cross-Platform Security Automation
Configuration Management Integration
Security Orchestration and Automated Response
Incident Response Framework Development
Digital Forensics and Evidence Collection
Containment and Eradication Strategies
Recovery and System Restoration
Lessons Learned and Continuous Improvement
Executive Summary
Incident Timeline
Root Cause Analysis
Primary Root Causes:
Contributing Factors:
What Went Well
What Needs Improvement
Lessons Learned
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Improvement Action Plan
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Follow-up Actions
Appendices
Conclusion

Lessons Learned

1 min read Infrastructure & DevOps Security

Lessons Learned

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