π§ Linux System Administration
| Skill | Description |
|-------|-------------|
| [file-operations](./linux/file-operations) | File and directory operations, find, permissions |
| [process-management](./linux/process-management) | Process monitoring, signals, job control |
| [user-permissions](./linux/user-permissions) | User management, sudo, ACL |
| [network-tools](./linux/network-tools) | Network diagnostics, netstat, ss, ip |
| [system-admin](./linux/system-admin) | System monitoring, resource management |
| [shell-scripting](./linux/shell-scripting) | Bash scripting, automation |
π§ Server Operations
| Skill | Description |
|-------|-------------|
| [nginx](./server/nginx) | Nginx configuration, virtual hosts, SSL |
| [apache](./server/apache) | Apache httpd configuration and management |
| [ssh](./server/ssh) | SSH configuration, keys, tunneling |
| [systemd](./server/systemd) | Service management, units, journalctl |
| [cron](./server/cron) | Scheduled tasks, crontab |
| [log-analysis](./server/log-analysis) | Log parsing, analysis, monitoring |
ποΈ Database Management
| Skill | Description |
|-------|-------------|
| [mysql](./database/mysql) | MySQL administration, queries, backup |
| [postgresql](./database/postgresql) | PostgreSQL management, psql, replication |
| [mongodb](./database/mongodb) | MongoDB operations, aggregation, sharding |
| [redis](./database/redis) | Redis commands, persistence, clustering |
| [elasticsearch](./database/elasticsearch) | Elasticsearch queries, indices, cluster |
| [sql-optimization](./database/sql-optimization) | Query optimization, indexing, explain |
βΈοΈ Kubernetes
| Skill | Description |
|-------|-------------|
| [kubectl-basics](./kubernetes/kubectl-basics) | Essential kubectl commands |
| [pod-management](./kubernetes/pod-management) | Pod lifecycle, debugging |
| [deployment](./kubernetes/deployment) | Deployments, rollouts, scaling |
| [service-ingress](./kubernetes/service-ingress) | Services, Ingress, networking |
| [configmap-secret](./kubernetes/configmap-secret) | Configuration management |
| [helm](./kubernetes/helm) | Helm charts, releases |
| [troubleshooting](./kubernetes/troubleshooting) | K8s debugging and diagnostics |
π³ Docker
| Skill | Description |
|-------|-------------|
| [container-ops](./docker/container-ops) | Container lifecycle management |
| [image-management](./docker/image-management) | Image building, tagging, registry |
| [dockerfile](./docker/dockerfile) | Dockerfile best practices |
| [compose](./docker/compose) | Docker Compose multi-container apps |
| [networking](./docker/networking) | Docker networking, bridges, overlay |
βοΈ Cloud CLI
| Skill | Description |
|-------|-------------|
| [aws-cli](./cloud-cli/aws-cli) | AWS CLI for EC2, S3, IAM, etc. |
| [azure-cli](./cloud-cli/azure-cli) | Azure CLI operations |
| [gcloud](./cloud-cli/gcloud) | Google Cloud CLI |
| [aliyun-cli](./cloud-cli/aliyun-cli) | Alibaba Cloud CLI |
π§ DevOps Tools
| Skill | Description |
|-------|-------------|
| [git-advanced](./devops/git-advanced) | Advanced Git workflows, rebasing |
| [ansible](./devops/ansible) | Ansible playbooks, inventory |
| [terraform](./devops/terraform) | Infrastructure as Code |
| [ci-cd](./devops/ci-cd) | CI/CD pipelines, GitHub Actions |
| [monitoring](./devops/monitoring) | Prometheus, Grafana, alerting |
π Network
| Skill | Description |
|-------|-------------|
| [tcp-ip](./network/tcp-ip) | TCP/IP fundamentals, troubleshooting |
| [dns](./network/dns) | DNS configuration, dig, nslookup |
| [vpn](./network/vpn) | VPN setup and management |
| [proxy](./network/proxy) | Proxy servers, reverse proxy |
| [load-balancer](./network/load-balancer) | Load balancing strategies |
| [traffic-analysis](./network/traffic-analysis) | tcpdump, Wireshark, packet analysis |
πΎ Backup & Recovery
| Skill | Description |
|-------|-------------|
| [rsync](./backup/rsync) | rsync for file synchronization |
| [tar-compres