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Get Started
Get Started
- Getting Started
- Career Paths
  Career Paths
DevOps
DevOps
- Linux
  Linux
  - Module 1 · Fundamentals
    Module 1 · Fundamentals
    
    Linux Fundamentals — Distributions and Architecture
    
    Boot Process and Filesystem Hierarchy
  - Module 2 · Command Line
  - Module 3 · Filesystem
    Module 3 · Filesystem
    
    Paths, Links, Mounts, and Inodes
    
    Disk Usage and File Attributes
  - Module 4 · Users & Permissions
    Module 4 · Users & Permissions
    
    Users, Groups, and sudo
    
    Permissions, ACLs, and Special Bits
  - Module 5 · Text Processing
  - Module 6 · Processes
  - Module 7 · Services & Boot
    Module 7 · Services & Boot
    
    systemd Services and journalctl
    
    systemd Targets, Timers, and Boot
  - Module 8 · Storage
    Module 8 · Storage
    
    Disks, Partitions, and Filesystems
    
    LVM, Swap, and Disk Monitoring
  - Module 9 · Networking
    Module 9 · Networking
    
    Linux Networking Tools
    
    SSH and Remote Access
  - Module 10 · Packages
  - Module 11 · Scheduling
  - Module 12 · Logging & Monitoring
    Module 12 · Logging & Monitoring
    
    Logging — syslog, journald, logrotate
    
    Host Monitoring — vmstat, iostat, sar
  - Module 13 · Security
    Module 13 · Security
    
    SSH Hardening and Firewalls
    
    SELinux, AppArmor, Fail2Ban, Auditd, PAM
  - Module 14 · Containers & Cloud
  - Module 15 · Troubleshooting
  - Module 16 · Production Linux
    Module 16 · Production Linux
    
    Production Hardening and Performance
    
    Backup, Disaster Recovery, and Capacity
- Shell Scripting
  Shell Scripting
- Networking
  Networking
  - Module 1 · Fundamentals
  - Module 2 · OSI Model
  - Module 3 · TCP/IP Model
  - Module 4 · IP Addressing
  - Module 5 · Subnetting
  - Module 6 · Routing
  - Module 7 · Switching
    Module 7 · Switching
    
    Ethernet, Switching, and VLANs
    
    ICMP, ARP, DHCP, and Network Services
  - Module 8 · TCP & UDP
  - Module 9 · DNS
    Module 9 · DNS
    
    DNS Fundamentals
    
    DNS Records and Troubleshooting
  - Module 10 · HTTP & HTTPS
  - Module 11 · NAT & Firewalls
    Module 11 · NAT & Firewalls
    
    NAT and Port Forwarding
    
    Firewalls and Access Control
  - Module 12 · Linux Networking
  - Module 13 · Load Balancing
    Module 13 · Load Balancing
    
    Load Balancing Fundamentals
    
    Reverse Proxy and Ingress Basics
  - Module 14 · Kubernetes Networking
  - Module 15 · Cloud Networking
  - Module 16 · Production Networking
    Module 16 · Production Networking
    
    VPN and Tunneling Basics
    
    Network Security Hardening
    
    Network Segmentation and Trust Boundaries
    
    Network Automation and Monitoring
    
    Production DNS Operations
    
    Load Balancer Operations and Health Checks
    
    Firewall Change Control and Production ACLs
  - Module 17 · Troubleshooting
    Module 17 · Troubleshooting
    
    Network Troubleshooting Methodology
    
    Packet Analysis with tcpdump and Wireshark
    
    Network Incident Response and Observability
- Python for DevOps
  Python for DevOps
- Git & GitHub
  Git & GitHub
  - Module 1 · Version Control Fundamentals
    Module 1 · Version Control Fundamentals
    
    Introduction to Git and Version Control
    
    Understanding the Git Object Model
  - Module 2 · Installing Git
  - Module 3 · Git Basics
    Module 3 · Git Basics
    
    Creating and Cloning Repositories
    
    Basic Git Workflow — Add, Commit, Push
    
    Viewing History and Diffs
  - Module 4 · Working with Repositories
  - Module 5 · Branching
  - Module 6 · Merging
  - Module 7 · Rebasing & History
    Module 7 · Rebasing & History
    
    Rebasing and Interactive Rebase
    
    Undoing Changes — Reset, Revert, and Stash
    
    Cherry-pick and Reflog
  - Module 8 · Remote Repositories
  - Module 9 · GitHub Fundamentals
  - Module 10 · Collaboration
  - Module 11 · GitHub Actions
  - Module 12 · GitOps
  - Module 13 · Infrastructure as Code
  - Module 14 · Repository Management
  - Module 15 · Security
  - Module 16 · Troubleshooting
    Module 16 · Troubleshooting
    
    Git Troubleshooting
    
    Git Bisect and Debugging History
  - Module 17 · Production Git Practices
  - Related depth
    Related depth
    
    Git Hooks and Automation
    
    Git Submodules and Subtrees
    
    Git in CI/CD and DevOps
    
    Advanced Git Workflows
- Docker
  Docker
  - Module 1 · Container Fundamentals
    Module 1 · Container Fundamentals
    
    Introduction to Containers and Docker
    
    Docker Architecture and Components
  - Module 2 · Installing Docker
  - Module 3 · Docker CLI
  - Module 4 · Images
  - Module 5 · Dockerfile
  - Module 6 · Image Optimisation
  - Module 7 · Volumes & Storage
  - Module 8 · Networking
  - Module 9 · Docker Compose
  - Module 10 · Registries
  - Module 11 · Security
  - Module 12 · Container Scanning
  - Module 13 · Logging & Monitoring
  - Module 14 · Performance
  - Module 15 · Docker in CI/CD
  - Module 16 · Troubleshooting
  - Module 17 · Production Docker
  - Related depth
    Related depth
    
    Environment Variables and Secrets
    
    Docker Swarm Orchestration Basics
    
    From Docker to Kubernetes
    
    Docker Capstone and Next Steps
- Kubernetes
  Kubernetes
  - Module 1 · Kubernetes Fundamentals
    Module 1 · Kubernetes Fundamentals
    
    Introduction to Kubernetes and Orchestration
    
    Kubernetes Architecture and Components
  - Module 2 · Cluster Setup
    Module 2 · Cluster Setup
    
    Installing Kubernetes and kubectl
    
    kubectl Essentials and Workflows
  - Module 3 · Kubernetes Objects
    Module 3 · Kubernetes Objects
    
    Pods — The Atomic Unit
    
    Labels, Selectors, and Namespaces
  - Module 4 · Workload Management
    Module 4 · Workload Management
    
    Deployments — Managing Replicated Pods
    
    Workload Controllers — StatefulSet, DaemonSet, Jobs
  - Module 5 · Services & Networking
  - Module 6 · Ingress & Gateway API
  - Module 7 · Storage
  - Module 8 · Configuration
    Module 8 · Configuration
    
    ConfigMaps and Secrets
    
    Resource Quotas and LimitRanges
  - Module 9 · Scheduling
  - Module 10 · Security
    Module 10 · Security
    
    RBAC and Kubernetes Security Basics
    
    Kubernetes Security Hardening
  - Module 11 · Networking Deep Dive
  - Module 12 · Observability
  - Module 13 · Autoscaling
  - Module 14 · Package Management
  - Module 15 · GitOps
  - Module 16 · Platform Engineering
  - Module 17 · Production Operations
  - Module 18 · Troubleshooting
  - Module 19 · Managed Kubernetes
  - Module 20 · Production Kubernetes
  - Related depth
    Related depth
    
    Health Checks, Probes, and Self-Healing
    
    Namespaces and Resource Management
    
    Production Patterns — HPA, PDB, and Affinity
    
    Kubernetes Capstone and Next Steps
- Helm
  Helm
  - Module 1 · Helm Fundamentals
    Module 1 · Helm Fundamentals
    
    Introduction to Helm
    
    Helm Architecture and Components
  - Module 2 · Installing Helm
  - Module 3 · Working with Charts
  - Module 4 · Templates
  - Module 5 · Values
  - Module 6 · Chart Dependencies
  - Module 7 · Releases
  - Module 8 · Testing & Validation
  - Module 9 · Security
  - Module 10 · GitOps Integration
  - Module 11 · Production Helm
  - Module 12 · Troubleshooting
- GitLab CI/CD
  GitLab CI/CD
- GitHub Actions
  GitHub Actions
- Jenkins
  Jenkins
- Argo CD
- Terraform
  Terraform
  - Module 1 · IaC Fundamentals
  - Module 2 · Installing Terraform
  - Module 3 · Terraform Basics
  - Module 4 · HCL Fundamentals
  - Module 5 · Providers
  - Module 6 · Resources
  - Module 7 · Variables & Outputs
  - Module 8 · State Management
    Module 8 · State Management
    
    Terraform State Fundamentals
    
    Remote State and Backends
  - Module 9 · Modules
    Module 9 · Modules
    
    Modules — Creating Reusable Infrastructure
    
    Registry Modules and Composition
  - Module 10 · Expressions & Functions
  - Module 11 · Data Sources
  - Module 12 · Workspaces
  - Module 13 · Terraform Cloud & Enterprise
  - Module 14 · Testing & Validation
  - Module 15 · Security
  - Module 16 · CI/CD
  - Module 17 · Multi-Cloud Infrastructure
  - Module 18 · Kubernetes Infrastructure
  - Module 19 · Production Terraform
  - Module 20 · Troubleshooting
- Ansible
Cloud
Cloud
Security
Security
- DevSecOps
  DevSecOps
  - FAQ
  - Learning Roadmap
  - Capstone
  - Certifications
  - Cheatsheets
  - Interview
  - Projects
  - Quizzes
- Security
  Security
  - FAQ
  - Learning Roadmap
  - Capstone
  - Certifications
  - Cheatsheets
  - Interview
  - Projects
  - Quizzes
SRE & Observability
SRE & Observability
- Site Reliability Engineering
- Monitoring
  Monitoring
  - FAQ
  - Learning Roadmap
  - Capstone
  - Certifications
  - Cheatsheets
  - Interview
  - Projects
  - Quizzes
- Prometheus
- Grafana
- Loki
- Tempo
- OpenTelemetry
Platform & AI
Platform & AI
- Platform Engineering
- Architecture
  Architecture
  - FAQ
  - Learning Roadmap
  - Capstone
  - Certifications
  - Cheatsheets
  - Interview
  - Projects
  - Quizzes
- AI for DevOps
  AI for DevOps
  - FAQ
  - Learning Roadmap
  - Capstone
  - Certifications
  - Cheatsheets
  - Interview
  - Projects
  - Quizzes
Practice
Practice
Extras
Extras

Home
Security
Security
Interview

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Individual items appear here as they are published for the Security track.

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