admin – Page 33 – ITFROMZERO

Boost HDD Speed by 10x with bcache: Use an Old SSD as Cache on Linux

By admin June 14, 2026

Don't let slow HDDs bottleneck your system. Here is a detailed guide on using bcache to turn an SSD into a cache for your HDD, multiplying IOPS at a minimal cost.

Virtualization

Deploy KVM ‘Lightning Fast’ with virt-install: Forget the GUI, CLI is King

By admin June 14, 2026

Learn how to use virt-install to deploy KVM virtual machines via the command line. A detailed guide from basic setup to automation with Cloud-init for Linux admins.

Docker

Running GUI Applications in Docker: An A-Z Guide to X11 Forwarding

By admin June 14, 2026

Learn how to run graphical applications (GUI) like Firefox and GIMP in Docker on Linux. Detailed guide on X11 Forwarding, GPU optimization, and container security.

Fedora

Deploying PostgreSQL on Fedora Server: Securing with SELinux and Firewalld

By admin June 14, 2026

A guide to installing production-ready PostgreSQL on Fedora Server. Focuses on SELinux security, Firewalld configuration, and performance optimization tips from real-world experience.

Artificial Intelligence tutorial - IT technology blog

Installing Continue on VS Code: Build Your Own Premium AI Assistant to Replace GitHub Copilot

By admin June 14, 2026

Install Continue on VS Code for a free, secure AI assistant. Detailed guide on connecting Ollama, Claude 3.5, and using Context for more efficient programming.

Network

NetBox: Retiring Excel and Building a Network Infrastructure Source of Truth

By admin June 14, 2026

Managing IPs via Excel is every IT engineer's nightmare. This guide helps you deploy NetBox on Docker to build a centralized, professional IPAM/DCIM system.

Security

Secure Internal Dashboards with OAuth2 Proxy: Block Unauthorized Access in a 15-Minute Setup

By admin June 14, 2026

Don't leave your internal dashboards passwordless! Detailed guide on using OAuth2 Proxy to add a Google/GitHub authentication layer in just 15 minutes.

Security

Hunting Rootkits on Linux with Volatility: Real-world Memory Forensics Techniques

By admin June 14, 2026

Learn how to use Volatility Framework for Linux memory forensics. This guide covers detecting rootkits, hidden processes, and RAM-resident malware that standard tools miss.

Docker

Speed Up Docker Pulls with Registry Mirror and Pull-through Cache: Fix for Slow International Connections

By admin June 13, 2026

A step-by-step guide to setting up a Docker Registry Mirror and Pull-through Cache to speed up image pulls, bypass Docker Hub rate limits, and save bandwidth for your entire team. Covers self-hosting an internal mirror with Docker Registry v2 and a production-ready HTTPS configuration.

Git

git commit –fixup and rebase –autosquash: Automatically Clean Up Commit History Without Manual Squashing

By admin June 13, 2026

git commit --fixup combined with rebase --autosquash automatically folds minor fix commits into their target commits — no manual squashing needed. This guide covers how to use this combo in a real workflow to keep your Git history clean and tidy before merging a PR.