Posted inAI
Building a Local AI Gateway with LiteLLM: Centralize OpenAI, Anthropic, and Ollama
Tired of managing multiple AI SDKs? Learn how to deploy LiteLLM as a central gateway to unify OpenAI, Claude, and local models while cutting costs.
Posted inSecurity
Stopping BadUSB: My 6-Month Experience Hardening Linux with USBGuard
Physical USB ports are a massive security blind spot. This guide shows you how to use USBGuard to whitelist trusted devices and block BadUSB attacks on Linux.
Posted inAI
LLM Fine-tuning with Unsloth and QLoRA: Training Llama 3 on Consumer GPUs
Stop hitting CUDA Out of Memory errors. This guide shows you how to use Unsloth and QLoRA to fine-tune Llama 3 on consumer GPUs with 70% less memory and 2x faster speeds.
Posted inNetworking
Site-to-Site VPN with StrongSwan IPsec IKEv2: A Production-Ready Linux Guide
Build a high-performance Site-to-Site VPN using StrongSwan on Linux. This guide covers IKEv2 configuration with swanctl, firewall tuning, and MSS clamping for maximum stability.
Posted inLinux
Clonezilla: The No-Nonsense Guide to Linux Disk Imaging and Recovery
Ditch the generic backup tools. This expert guide shows you how to use Clonezilla for block-level imaging, network backups via SSH, and restoring systems to smaller disks.
Posted inDatabase
Data Masking in PostgreSQL and MySQL: Securing Sensitive Data for Dev and Staging
Using raw production data in Dev or Staging is a massive security risk. Learn how to implement robust Static and Dynamic Data Masking for PostgreSQL and MySQL.
Posted inSecurity
GPG for Linux: A Practical Guide to Encrypting Files and Signing Data
Master GnuPG on Linux. This guide walks you through asymmetric encryption, signing files, and the pro-level key management habits that prevent data loss.
Posted inLinux
Taking Control of Linux PAM: A Practical Guide to System Authentication
Learn how to configure Linux Pluggable Authentication Modules (PAM) to enforce account locking, time-based access, and robust security policies without locking yourself out.
Posted inProgramming
Building GraphQL APIs with Python Strawberry and FastAPI: From Schema Design to Authentication
Tired of endpoint bloat? Learn to build type-safe, high-performance GraphQL APIs using Python Strawberry and FastAPI to solve REST over-fetching and N+1 issues.
Posted inDatabase
PostgreSQL High Availability on Kubernetes: A Hands-On Guide to CloudNativePG
Stop managing database failures manually. Discover how to deploy a self-healing, production-grade PostgreSQL cluster on Kubernetes with automated failover and S3 backups.