Linux Tutorials & Guides
Comprehensive, hands-on guides for Linux engineers. From fundamentals to advanced production patterns.
Ollama on Ubuntu 24.04 LTS: Known Issues, Fixes, and Optimization
Fix Ollama issues on Ubuntu 24.04 LTS. Covers NVIDIA driver problems, systemd config, AppArmor conflicts, CUDA...
LLM Security on Linux: Prompt Injection, API Auth, and Network Isolation
Secure self-hosted LLMs on Linux against prompt injection, API abuse, and network exposure. Covers input sanitization,...
RHEL on Raspberry Pi 5: Enterprise Linux on ARM
Why RHEL cannot boot on Raspberry Pi 5 due to the RP1 southbridge and kernel gap, WiFi compatibility with the CYW43455...
RHEL on Raspberry Pi 4: Enterprise Linux on ARM
Install RHEL 9 on Raspberry Pi 4 via UEFI firmware, enable the CYW43455 WiFi chip with brcmfmac and fix the SDIO race...
Ollama Systemd Service: Production Hardening and Performance Tuning
Harden and optimize your Ollama systemd service for production Linux deployments with security isolation, resource...
AI-Assisted Ansible Troubleshooting with Local LLMs on Linux
Use local LLMs with Ollama to troubleshoot Ansible failures on Linux. Build error analyzers, callback plugins, and...
Ollama Backup and Migration: Move Models Between Linux Servers
Back up and migrate Ollama models between Linux servers. Covers storage layout, selective model export, rsync...
Whisper Speech-to-Text on Linux: Deploy a Self-Hosted Transcription Server
Deploy OpenAI Whisper as a self-hosted transcription server on Linux. Covers faster-whisper, REST API setup, GPU...
Self-Hosted AI Translation Server on Linux with Ollama
Build a self-hosted AI translation server on Linux with Ollama. Covers REST API setup, model selection for multilingual...
OpenVPN and WireGuard: site-to-site VPN on Linux
Build site-to-site VPN tunnels with OpenVPN using easy-rsa PKI and with WireGuard using kernel-level encryption,...
OpenSSH advanced: tunneling, certificates, and hardening
Configure SSH tunnels for local, remote, and dynamic forwarding, deploy certificate-based authentication with an SSH...
Intrusion detection with AIDE, fail2ban, and auditd
Deploy AIDE for filesystem integrity monitoring, configure fail2ban jails with custom filters, and build auditd rules...