Linux

How to Migrate Workloads from RHEL 9 to RHEL 10 — step-by-step RHEL 10 tutorial on Progressive Robot

How to Migrate Workloads from RHEL 9 to RHEL 10

Introduction Setting up migrate workloads from rhel 9 to rhel 10 on a RHEL 10 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Migrate Workloads from RHEL 9 to RHEL 10, with all the commands you need, the SELinux and firewalld considerations to keep […]

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AlmaLinux 8 — perl-Text-Glob — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — perl-Text-Glob — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2026:8096 Related CVEs: CVE-2025-40909 CVE-2023-47038 Upstream summary: Perl is a high-level programming language that is commonly used for system administration utilities and web programming. Security Fix(es): * perl: Perl threads have a […]

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How to Configure Two-Factor Authentication for SSH on RHEL 10 — step-by-step RHEL 10 tutorial on Progressive Robot

How to Configure Two-Factor Authentication for SSH on RHEL 10

Introduction How to Configure Two-Factor Authentication for SSH on RHEL 10 on RHEL 10 provides administrators with a robust, enterprise-ready workflow that integrates cleanly with systemd, SELinux, firewalld, and the modern AppStream module system. In this tutorial we will walk through every step required, from package installation to verification, so that the resulting configuration is […]

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Alpine Linux edge — screen — multiple vulnerabilities (8 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — screen — multiple vulnerabilities (8 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 5.0.1-r0 📖 ~4 min read  •  Source: Alpine secdb entry — screen 5.0.1-r0 Related CVEs: CVE-2025-46805 CVE-2025-46804 CVE-2025-46803 CVE-2025-46802 CVE-2025-23395 CVE-2023-24626 CVE-2021-26937 CVE-2020-9366 Upstream summary: Alpine main repository for vedge ships screen 5.0.1-r0 which addresses CVE-2025-46805. […]

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How to Use Python Virtual Environments on Ubuntu 24.04 — step-by-step Linux tutorial on Progressive Robot

How to Install Python 3.12 on Ubuntu 24.04

Python 3.12 is the default Python version on Ubuntu 24.04 LTS. It introduces improved error messages, a new type annotation syntax, and performance enhancements. This guide confirms the installation and shows how to set up Python development tools. Tested and valid on: Ubuntu 24.04 LTS Prerequisites Ubuntu 24.04 LTS server A user with sudo privileges […]

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Debian 11 — fastd — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — fastd — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 23 July 2025 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2020-27638 CVE-2025-24356 Upstream summary: receive.c in fastd before v21 allows denial of service (assertion failure) when receiving packets with an invalid type code. Table of contents Symptom & […]

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Alpine Linux 3.20 — cairo — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux 3.20

Alpine Linux 3.20 — cairo — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.20 / fixed in 1.17.4-r1 📖 ~4 min read  •  Source: Alpine secdb entry — cairo 1.17.4-r1 Related CVEs: CVE-2019-6462 CVE-2020-35492 CVE-2018-19876 Upstream summary: Alpine main repository for vv3.20 ships cairo 1.17.4-r1 which addresses CVE-2019-6462. Table of contents Symptom & […]

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openSUSE Tumbleweed — terragrunt — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — terragrunt — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE security advisory Related CVEs: CVE-2025-8959 Upstream summary: HashiCorp's go-getter library subdirectory download feature is vulnerable to symlink attacks leading to unauthorized read access beyond the designated directory boundaries. This vulnerability, identified as CVE-2025-8959, […]

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Ubuntu 24.04 — python-zipp — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 24.04

Ubuntu 24.04 — python-zipp — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 23 July 2025 Affected versions: Ubuntu 24.04 (noble) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6906-1 Related CVEs: CVE-2024-5569 Upstream summary: It was discovered that python-zipp did not properly handle the zip files with malformed names. An attacker could possibly use this issue to cause […]

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How to Use Python Virtual Environments on Ubuntu 24.04 — step-by-step Linux tutorial on Progressive Robot

How to Manage Node.js Versions with NVM on Ubuntu 24.04

NVM (Node Version Manager) lets you install multiple Node.js versions and switch between them with a single command. This is essential for developers working on multiple projects with different Node.js requirements on Ubuntu 24.04 LTS. Tested and valid on: Ubuntu 24.04 LTS Prerequisites Ubuntu 24.04 LTS server or desktop A user account (NVM is installed […]

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