Linux Tutorials & Guides
Comprehensive, hands-on guides for Linux engineers. From fundamentals to advanced production patterns.
Split-Horizon DNS on Linux: BIND9 Views for Internal and External Networks
Configure BIND9 split-horizon DNS with views to serve different answers for internal and external networks — solve...
Private LLM for Enterprise: Linux Deployment Architecture and Security Guide
Enterprise reference architecture for self-hosted LLMs on Linux. Covers data sovereignty, hardware sizing, network...
Git-Driven DNS: Automate Record Management with Terraform, Ansible, and CI/CD
Bring DNS under version control with Terraform, dnscontrol, OctoDNS, and Ansible — CI/CD pipelines, peer review, safety...
LocalAI on Linux: Deploy an OpenAI-Compatible API Server with Local Models
Set up LocalAI on Linux as a drop-in OpenAI API replacement. Covers Docker and binary installation, GGUF models, GPU...
Kubernetes DNS Deep Dive: CoreDNS, ExternalDNS, and Service Discovery
Master Kubernetes DNS with CoreDNS tuning, the ndots:5 problem, NodeLocal DNSCache, ExternalDNS auto-registration,...
Running Multiple Ollama Models: Memory Management and Optimization Guide
Configure Ollama to run multiple models simultaneously on Linux with proper VRAM partitioning, memory scheduling, model...
Ollama Python API: Build Linux Administration Tools with Local LLMs
Use the Ollama Python library to build practical sysadmin tools — log analyzers, config generators, incident...
DNS Observability on Linux: Troubleshooting with dig, dnstap, and Prometheus
Build complete DNS observability with advanced dig techniques, dnstap structured logging, Prometheus monitoring,...
Kubernetes Ollama Deployment: Production GPU Scheduling and Scaling Guide
Deploy Ollama on Kubernetes with GPU scheduling via nvidia-device-plugin, Helm charts, PersistentVolumeClaims for model...
GPU Monitoring for AI Workloads on Linux: Tools, Dashboards, and Alerts
Deep dive into gpu monitoring linux ai tools: nvidia-smi, nvtop, gpustat, Prometheus exporters, and Grafana dashboards....
Ollama Behind Nginx: Reverse Proxy with Authentication, SSL, and Rate Limiting
Production guide to running Ollama behind Nginx with SSL termination, basic and API key authentication, per-IP rate...
Linux Network Commands Every Engineer Must Know
Essential networking commands for diagnosing, monitoring, and troubleshooting Linux network issues. From ip to ss, nmap...