Tutorials
Step-by-step technical guides on Docker, Linux, Python, Go, and more.
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FFmpeg NVENC Hardware Acceleration 2026: GPU Encoding on FFmpeg 9.0
FFmpeg NVENC guide for FFmpeg 9.0 "Lei" (August 2026). Full GPU transcode pipeline with -hwaccel cuda, h264_nvenc, hevc_nvenc and av1_nvenc presets, quality tuning with spatial AQ, and the deprecated NVENC options that FFmpeg 9.0 removed.
Prompt Injection Is an Authorization Problem: OWASP LLM01 Defences (2026)
Prompt injection defence for LLM agents in 2026. Why input filtering cannot fix OWASP LLM01, the difference between direct and indirect injection, and seven OWASP mitigations applied as authorization controls with Python examples.
Run a 70B LLM on a 4GB GPU: Layer-by-Layer Inference with AirLLM (2026)
Run a 70B language model on a 4GB GPU with AirLLM. Layer-by-layer inference needs no quantization, distillation or pruning. Covers install, code, the VRAM table for 70B/405B/671B models, disk and speed trade-offs, and when llama.cpp offloading is the better choice.
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.
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.
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.