Knowing how your server uses CPU, memory, disk, and network is essential for capacity planning and troubleshooting. This guide covers the most useful monitoring commands and tools on Ubuntu 24.04 LTS. Tested and valid on: Ubuntu 24.04 LTS Prerequisites Ubuntu 24.04 LTS server A user with sudo privileges Step 1 – Quick Overview with top […]
Introduction Debian 13 Trixie is built around the ethos of stability and free software. Setting up configure nftables firewall rules on Trixie leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Trixie freeze. Follow each step carefully and the resulting configuration […]
SSH, or secure shell, is an encrypted protocol used to administer and communicate with servers. When working with a Rocky Linux server, chances are you will spend most of your time in a terminal session connected to your server through SSH. In this guide, we’ll focus on getting a reliable SSH configuration set up.
🟠 High ⏱ 15–60 min Last verified: 25 May 2026 Affected versions: Oracle Linux 9 📖 ~4 min read • Source: ELSA advisory ELSA-2025-20721 Related CVEs: CVE-2025-38724 CVE-2025-39964 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & […]
Introduction Deploying install nginx on a Debian 13 Trixie machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites Before you begin, ensure you have a […]
Introduction This guide explains how to Set Resource Limits with limits.conf on Debian 13 on Debian 13 Trixie. Debian Trixie uses systemd for service management, nftables as the underlying packet filter (with ufw or iptables front-ends still available), and AppArmor for mandatory access control. Every command is designed for a minimal Debian 13 install with […]
![Como instalar o Pyhton 3 e configurar um ambiente de programação no Ubuntu 20.04 [Guia de início rápido] — step-by-step Linux tutorial on Progressive Robot](https://www.progressiverobot.com/wp-content/uploads/2026/05/how-to-install-python-3-and-set-up-a-programming-environment-on-ubuntu-20-04-quickstart-pt-82328-featured.png "Como instalar o Pyhton 3 e configurar um ambiente de programação no Ubuntu 20.04 [Guia de início rápido] 7")
O Python é uma linguagem de programação flexível e versátil, com vantagens em script, automação, análise de dados, aprendizado de máquina e desenvolvimento back-end. Este tutorial lhe fornecerá um passo a passo da instalação do Python e da configuração de um ambiente de…
🟠 High ⏱ 15–60 min Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read • Source: AlmaLinux ALSA ALSA-2025:14101 Related CVEs: CVE-2025-6965 CVE-2019-16168 CVE-2020-13434 CVE-2020-13630 CVE-2020-13631 CVE-2020-13632 Upstream summary: SQLite is a C library that implements an SQL database engine. A large subset of SQL92 is supported. A complete database […]
🟠 High ⏱ 15–60 min Last verified: 25 May 2026 Affected versions: Rocky Linux 9 📖 ~4 min read • Source: Rocky Linux RXSA RLSA-2025:20955 Related CVEs: CVE-2025-46817 CVE-2025-46818 CVE-2025-46819 CVE-2025-49844 Upstream summary: Redis is an advanced key-value store. It is often referred to as a data-structure server since keys can contain strings, hashes, […]
🟠 High ⏱ 5–30 min Last verified: 19 May 2026 Affected versions: CentOS Stream 10 📖 ~1 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention & Hardening Related Errors […]
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