El Gestor de Arranque systemd: Un Despegue Rápido y Organizado en Linux 🚀
Oct 28, 2025 · 6 min read · systemd ha revolucionado la gestión de sistemas y servicios en la mayoría de las distribuciones Linux modernas, reemplazando al tradicional SysV init. Más que un simple gestor de arranque, es un completo marco de administración que ofrece un inicio d...
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🛠️ Monitoreo y Mantenimiento: Claves para un Sistema Linux Saludable
Oct 23, 2025 · 6 min read · Mantener un sistema Linux en óptimas condiciones no es solo cuestión de configurarlo bien, sino también de monitorearlo y mantenerlo activamente. Esto es fundamental para cualquier administrador de sistemas que trabaje con certificaciones como LPIC-1...
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Cheatsheet & Examples: systemctl
Sep 16, 2025 · 4 min read · systemctl is a command-line utility used to control the systemd system and service manager. It allows users to manage system services, check their status, enable/disable them at boot, and more. Check the status of a service Example Usage:systemctl st...
Join discussionSadserver Day 5: Troubleshooting a PostgreSQL Connection Issue
Aug 28, 2025 · 3 min read · Today’s server story is about a failing database connection. A web application was trying to connect to PostgreSQL 13 on one of our servers, but the connection simply wouldn’t work. Let’s walk through the problem, the investigation, and the fix. The ...
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Sadservers Day3: Debugging an Nginx "Connection Refused" Error SadServers Problem
Aug 22, 2025 · 4 min read · The Problem Statement A classic issue with an Nginx web server managed by systemd where curling the curl -I 127.0.0.1:80 returns this frustrating response: curl: (7) Failed to connect to localhost port 80: Connection refused At first glance, this te...
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Today’s Learning Log – Processes, Signals, and Services in Linux
Aug 15, 2025 · 3 min read · Today I dove deep into Linux process management, signals, and system services. Here’s the breakdown of what I learned and practiced. Processes and Their States Foreground – process runs in direct interaction with the terminal; you can’t use the term...
Join discussion⚙️ Day 8 of #150DaysOfDevOps – Service Management with systemd (SYSTEMCTL & JOURNALCTL)
Jul 24, 2025 · 4 min read · Welcome to Day 8 of the #150DaysOfDevOps challenge. Today, we dive deep into systemd—the powerful init system and service manager used in almost all modern Linux distributions like Ubuntu, CentOS, RHEL, Fedora, and Debian. 🧠 Why Learn systemd? In a...
Join discussionPart 9: Connecting MySQL to Linux and Useful Linux Commands
Jan 14, 2025 · 3 min read · In this part, we will discuss how to connect MySQL to Linux, explore some essential Linux commands like systemctl, zip, ps, and kill, and create a shell script to automate file deletion for files older than 15 days. Using systemctl Command The syste...
Join discussion📜 Day 7: Diving Deep into Linux Package Managers & Systemctl!
Oct 16, 2024 · 2 min read · Hey Hashnode Devs! 💻 Today’s #90DaysOfDevOps challenge is all about making your life easier as a DevOps engineer by mastering package managers and systemctl. Whether you’re managing Docker 🐳 or Jenkins 🛠️, these tools are essential! What’s a Pack...
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