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Used RTX 3090 vs RTX 5090 for Local AI: Is the Cheaper Card Still King?
A tested head-to-head of the used RTX 3090 and the new RTX 5090 for running local LLMs, with real tokens per second,…
ComputingForGeeks - Linux Tutorials, DevOps Guides & Server Administration
Practical guides for Linux, DevOps, Cloud & Infrastructure
3,910+ tutorials · Written by engineers, for engineers · Since 2014
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01
AI Setup and Customize OpenCode – The Open Source AI Coding Agent
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02
AI Ollama Commands Cheat Sheet: CLI and API Reference
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03
Arch Linux Install Arch Linux the Easy Way with archinstall
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04
Virtualization Install KVM and Virt-Manager on Arch Linux
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05
Linux Ubuntu 26.04 LTS (Resolute Raccoon): New Features, Changes, and What to Know
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Ubuntu Install Ubuntu 26.04 LTS (Resolute Raccoon) – Step by Step with Screenshots
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IaC & Automation
New 
Ansible Mastery
27-part series
- 1Ansible Automation Guide: From Basics to Production
- 2Install and Configure Ansible on RHEL and Debian Based Linux
- 3Ansible Ad-Hoc Commands: Quick Tasks Without Playbooks
- +24 more parts
Fedora
New 
Fedora 44 Workstation
20-part series
- 1Install Fedora 44 Linux Step-by-Step with Screenshots
- 2Install Flatpak and Flathub Apps on Fedora 44 / 43 / 42
- 3Configure GNOME Tweaks and Extensions on Fedora 44
- +17 more parts
Databases
New 
Qdrant Mastery
14-part series
- 1Qdrant Vector Database: Setup, Search, and Production Use
- 2Install Qdrant on Ubuntu 26.04 / 24.04 / 22.04
- 3Install Qdrant on Rocky Linux 10 / AlmaLinux 10
- +11 more parts
Ubuntu 26.04
Ubuntu 26.04 Web Stack
14-part series
- 1Install LAMP Stack on Ubuntu 26.04 LTS (Apache, MariaDB, PHP)
- 2Install LEMP Stack on Ubuntu 26.04 LTS (Nginx, MariaDB, PHP 8.5)
- 3Install MariaDB on Ubuntu 26.04 LTS
- +11 more parts
Ubuntu 26.04
Ubuntu 26.04 DevOps & Container Tools
13-part series
- 1Install Docker Compose on Ubuntu 26.04 LTS
- 2Install Podman on Ubuntu 26.04 LTS (Docker Alternative)
- 3Install Ansible on Ubuntu 26.04 LTS
- +10 more parts
Identity & Access
New 
FreeIPA Identity Management
12-part series
- 1Install FreeIPA Server on Rocky Linux 10 / AlmaLinux 10 / RHEL 10
- 2How To Configure FreeIPA Replication on Rocky Linux / AlmaLinux 10 and 9
- 3Run FreeIPA Server in Docker or Podman Containers
- +9 more parts
Ubuntu 26.04
Ubuntu 26.04 Security & Hardening
12-part series
- 1How To Install WireGuard VPN on Ubuntu 26.04 LTS
- 2How To Configure UFW Firewall on Ubuntu 26.04 LTS
- 3How To Harden Ubuntu 26.04 LTS Server (Complete Security Guide)
- +9 more parts
Google Cloud
GCP Certificate, DNS & Traffic Consolidation
11-part series
- 1Audit GCP Certificate Sprawl on Per-Service ManagedCertificate
- 2Configure Cloud DNS DNSSEC and CAA on GCP (Terraform)
- 3Issue GCP Wildcard Certs with DNS Authorization (Terraform)
- +8 more parts
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Rocky Linux
346 articles- Install PostgreSQL 19 on Ubuntu, Debian, Rocky Linux & AlmaLinux
- Install Valkey on Rocky Linux 10 / AlmaLinux 10
- Install Qdrant on Rocky Linux 10 / AlmaLinux 10
- Install DSpace 9 on Rocky Linux 10 / AlmaLinux 10
Ubuntu
823 articles- Install OrientDB on Ubuntu 26.04 / 24.04 / 22.04
- Install Valkey on Ubuntu 26.04 / 24.04 (Redis Replacement)
- Create Debian and Ubuntu LXC Containers on Proxmox VE
- Build Ladybird Browser on Ubuntu, Fedora, and macOS
Kubernetes
289 articles- Install Local OpenShift Cluster using CRC (OpenShift Local)
- Red Hat OpenShift 4 New Features
- Ansible with Kubernetes: Deploy and Manage a Cluster
- Build a Self-Hosted RAG with Qdrant, Ollama, and LangChain
Desktop
177 articles- 12 Things to Do After Installing Peppermint OS
- How to Install Peppermint OS Step-by-Step (With Screenshots)
- Things to Do After Installing MX Linux
- How to Install MX Linux (Step-by-Step with Screenshots)
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