DevOps – Page 12 – ITFROMZERO

nsenter: The Network Debugging “Lifesaver” for Lightweight Docker Containers (Distroless/Alpine)

By admin July 17, 2026

Stop rebuilding Docker images just to install curl or ping. Use nsenter to directly access the Network Namespace and debug like a pro.

Docker

Docker Volume & NFS: The ‘Lifesaver’ Solution for Multi-Host Data

By admin July 17, 2026

A guide on configuring Docker Volumes with the NFS Driver for multi-host data sharing. A simple, effective solution for Docker Swarm and High Availability.

Docker

Colima Guide: A Smooth Docker Desktop Alternative, a ‘Lifesaver’ for RAM on macOS

By admin July 17, 2026

Don't let Docker Desktop hog all your RAM. Learn how to switch to Colima: a lightweight, free Docker Engine alternative perfectly optimized for macOS M1/M2/M3.

Ubuntu

How to Install OpenLDAP on Ubuntu 22.04: Manage 1,000+ Users Centrally

By admin July 17, 2026

Managing hundreds of users across multiple servers has never been easier. This Ubuntu 22.04 OpenLDAP guide helps you build a DevOps-standard centralized authentication system.

Docker

HashiCorp Nomad: Lightweight Docker Container Management — A Better Alternative to Kubernetes for Small and Medium Systems

By admin July 16, 2026

HashiCorp Nomad is a lightweight Docker container orchestration solution, ideal for small teams looking to avoid the complexity of Kubernetes. This article covers installation, practical job spec writing, and operational tips drawn from real-world microservices experience.

Monitoring

Grafana Faro: The ‘Watchful Eye’ for Real User Monitoring (RUM) in Web Applications

By admin July 16, 2026

Grafana Faro is a powerful RUM solution for tracking real user experiences. Detailed setup guide to detect frontend errors and optimize website performance.

Centos

Installing GitLab CE on CentOS Stream 9: Building Your Own Internal Code and CI/CD Forge

By admin July 16, 2026

Properly install GitLab CE on CentOS Stream 9. Detailed instructions from hardware configuration and SELinux security to free Let's Encrypt SSL setup.

Fedora

Mastering PHP 8.x on Fedora Server: Optimizing PHP-FPM and Taming SELinux

By admin July 16, 2026

A guide to setting up high-performance PHP 8.x on Fedora Server. Optimize PHP-FPM Unix Sockets, configure OPcache, and professionally handle SELinux for Production environments.

Monitoring

Prometheus Alertmanager Silences and Inhibition Rules: Reducing Alert Noise in Production Systems

By admin July 15, 2026

A guide to configuring Alertmanager Silences and Inhibition Rules to reduce alert noise in production environments. Covers integrating amtool into a CI/CD pipeline and setting up inhibition rules for Kubernetes clusters.

Git

Resolving Git Conflicts the Easy Way with Meld: A Complete Mergetool Configuration Guide

By admin July 15, 2026

Don't let Git conflicts slow you down. This step-by-step guide covers how to install and use Meld as your mergetool for a more visual, safe, and professional way to resolve code conflicts.