Tutorials
Step-by-step technical guides on Docker, Linux, Python, Go, and more.
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Argo CD GitOps Tutorial 2026: Deploy Kubernetes Apps from Git with Self-Healing
Argo CD tutorial 2026: install Argo CD on Kubernetes, deploy an app from Git, set up auto-sync self-healing, manage multiple environments, and compare Argo CD vs Flux. Step-by-step with kubectl and YAML.
Best WiFi Adapters for Kali Linux 2026: Monitor Mode, Packet Injection, WPA3 (Kernel 6.14+)
Best USB WiFi adapters for Kali Linux 2026 that support monitor mode and packet injection on kernel 6.14+. Alfa AWUS036ACM, AWUS036ACHM, AWUS1900 reviewed with driver install commands.
Bug Bounty Hunting for Beginners 2026: From Recon to Your First Valid Report
Bug bounty hunting tutorial for beginners 2026: choose a program, do recon with subfinder and httpx, find XSS and IDOR vulnerabilities, write a valid report. HackerOne and Bugcrowd step-by-step guide.
Build an MCP Server in Python 2026: Tools, Resources, and Prompts from Scratch
Build a working MCP (Model Context Protocol) server in Python from scratch. Covers tools, resources, and prompts using the FastMCP library. Connect to Claude Desktop and Claude Code in 2026.
Context Engineering 2026: AGENTS.md, CLAUDE.md, and .cursorrules That Actually Work
Context engineering tutorial 2026: write AGENTS.md, CLAUDE.md, and .cursorrules files that improve AI coding agent success rate from 30% to 90%. Real examples for Claude Code, Cursor, and Gemini CLI.
Crossplane 2026: Manage AWS Infrastructure as Kubernetes YAML (Terraform Alternative)
Crossplane tutorial 2026: install Crossplane on Kubernetes, use the AWS provider to create S3 buckets and RDS databases as YAML manifests, build Composite Resource Definitions, and compare Crossplane vs Terraform.
eBPF and Cilium Tutorial 2026: Zero-Overhead Kubernetes Networking, Hubble, and Tetragon
eBPF and Cilium tutorial 2026: install Cilium as Kubernetes CNI, replace kube-proxy, visualize network flows with Hubble, enforce NetworkPolicy, and add runtime security with Tetragon. Step-by-step kubectl commands.
Grafana Loki Tutorial 2026: Centralize Linux and Docker Logs Without Elasticsearch
Grafana Loki tutorial 2026: deploy Loki with Docker Compose, ship Linux syslog and Docker container logs with Promtail, query with LogQL, and build Grafana dashboards. 10x cheaper than Elasticsearch.
Hashcat Bcrypt Benchmark 2026: RTX 5090, RTX 4090, RX 7900 XTX Speed Table (Mode 3200)
Hashcat bcrypt (mode 3200) benchmark table 2026. RTX 5090: ~250 kH/s, RTX 4090: 180 kH/s at cost factor 5. RTX 3090, RX 7900 XTX speeds included. How to run hashcat -b -m 3200 yourself.
iw Command Guide 2026: Enable Monitor Mode, Scan Networks, Fix Device Busy Error
Complete iw command guide 2026. Enable monitor mode with iw dev wlan0 set type monitor, scan networks, fix "SET failed on device wlan0: Device or resource busy" error. Kali Linux and Ubuntu tested.