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How to Manage Users and Groups on SLES 15 — step-by-step SUSE Linux Enterprise 15 tutorial on Progressive Robot

How to Manage Users and Groups on SLES 15

Introduction This tutorial covers How to Manage Users and Groups on SLES 15 on SLES 15. SLES 15 (SUSE Linux Enterprise Server 16) is SUSE’s enterprise-grade Linux distribution. It uses the zypper package manager, AppArmor for mandatory access control, and systemctl for service management. Prerequisites Ensure your SLES 15 system is up to date: zypper […]

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How to Create a Random Number Generator in C++ — step-by-step Programming tutorial on Progressive Robot

How to Create a Random Number Generator in C++

URL: https://www.progressiverobot.com/random-number-generator-c-plus-plus/ In this article, we'll go over the functions needed to create a random number generator in C++. In the world of computers, random numbers form an essential component to add the flavor of anonymity and security. A random number generator forms the backbone of creating pseudo-random numbers. The idea behind pseudo-random numbers is […]

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Alpine Linux edge — postsrsd — vulnerability — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — postsrsd — vulnerability — patch and remediation guide

🟔 Medium   ā± 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 1.6-r4 šŸ“– ~4 min read  ā€¢  Source: Alpine secdb entry — postsrsd 1.6-r4 Related CVEs: CVE-2020-35573 Upstream summary: Alpine community repository for vedge ships postsrsd 1.6-r4 which addresses CVE-2020-35573. Table of contents Symptom & Impact Environment […]

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Oracle Linux 8 — bluez — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — bluez — vulnerability — patch and remediation guide (ELSA-2021-1598)

🟔 Medium   ā± 10–30 min  Last verified: 23 November 2020 Affected versions: Oracle Linux 8 šŸ“– ~4 min read  ā€¢  Source: ELSA advisory ELSA-2021-1598 Related CVEs: CVE-2020-27153 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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How To Install Ruby on Rails with rbenv on Ubuntu 16.04 — step-by-step Linux tutorial on Progressive Robot

How To Install Ruby on Rails with rbenv on Ubuntu 16.04

Ruby on Rails is one of the most popular application stacks for developers looking to create sites and web apps. You can easily install Ruby and Rails with the command-line tool rbenv. Using rbenv will provide you with a solid environment for developing your Ruby on Rails applications as it will let you easily switch Ruby versions, keeping your entire team on the same version.

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Debian 10 — tcpdump — vulnerability — patch and remediation guide — diagnosis and fix on Debian 10

Debian 10 — tcpdump — vulnerability — patch and remediation guide

🟢 Low   ā± 5–15 min  Last verified: 23 November 2020 Affected versions: Debian 10 (buster) šŸ“– ~4 min read  ā€¢  Source: Debian Security Tracker Related CVEs: CVE-2018-10103 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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Criando Containers Otimizados para o Kubernetes — step-by-step Docker tutorial on Progressive Robot

Criando Containers Otimizados para o Kubernetes

Imagens de container sĆ£o o formato de empacotamento principal para a definição de aplicaƧƵes no Kubernetes. Usadas como base para pods e outros objetos, as imagens desempenham um papel importante ao aproveitar os recursos do Kubernetes para executar aplicaƧƵes com eficiĆŖncia na…

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Android BroadcastReceiver Example Tutorial — step-by-step DevOps tutorial on Progressive Robot

Android BroadcastReceiver Example Tutorial

Today we'll discuss and implement Android BroadcastReceiver that is a very important component of Android Framework. Android BroadcastReceiver Android BroadcastReceiver is a dormant component of android that listens to system-wide broadcast events or [intents](/community/tutorials/android-studio-tutorial-hello-world-app). When any of these events occur it brings the application into action by either creating a status bar notification or performing […]

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Initial Server Setup with Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

Initial Server Setup with Oracle Linux 8

Introduction This tutorial demonstrates initial Server Setup with Oracle Linux 8 on Oracle Linux 8. It is written for administrators who want a repeatable, well-explained walkthrough that goes beyond a bare command list and explains each configuration choice. Every command is tested against a freshly registered Oracle Linux 8 system with the default AppStream repositories […]

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