February 2021 - Page 4 of 62

IBM AIX 7.1 — CVE-2021-29681 — vulnerability — patch and remediation guide — diagnosis and fix on IBM AIX 7.1

IBM AIX 7.1 — CVE-2021-29681 — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 15–45 min  Last verified: 25 May 2026 Affected versions: IBM AIX 7.1 📖 ~4 min read  •  Source: NVD CVE-2021-29681, IBM Support Bulletin CVE: CVE-2021-29681 NVD summary: IBM InfoSphere Information Server 11.7 could allow an attacker to obtain sensitive information by injecting parameters into an HTML query. This information could be […]

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Importando pacotes em Go — step-by-step Programming tutorial on Progressive Robot

Importando pacotes em Go

Haverá ocasiões em que o seu código irá precisar de funcionalidades adicionais, fora do seu programa atual. Nesses casos, utilize pacotes para tornar seu programa mais sofisticado. Um pacote representa todos os arquivos em um único diretório em disco. Os pacotes podem definir…

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How to Configure Server Manager on Windows Server 2016 — step-by-step Windows Server 2016 tutorial on Progressive Robot

How to Configure Server Manager on Windows Server 2016

How to Set Up Windows Server 2016 Server Manager Server Manager is the central management console in Windows Server 2016 that consolidates the most common server administration tasks into a single dashboard. It provides a unified view of server status, role and feature management, event logs, performance data, and service health across both local and […]

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How To Install Puppet 4 on Ubuntu 16.04 — step-by-step Linux tutorial on Progressive Robot

How To Install Puppet 4 on Ubuntu 16.04

Puppet is a configuration management tool that helps system administrators automate the provisioning, configuration and management of a server infrastructure. In this tutorial, we will demonstrate how to install open source Puppet 4 in a master-agent setup on Ubuntu 16.04. In this setup, the Puppet master server—which runs the Puppet Server software—can be used to control al

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

Oracle Linux 8 — firefox — vulnerability — patch and remediation guide (ELSA-2021-0655)

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-0655 Related CVEs: CVE-2021-23968 CVE-2021-23973 CVE-2021-23969 CVE-2021-23978 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches […]

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Установка MySQL в Ubuntu 20.04 — step-by-step Linux tutorial on Progressive Robot

Установка MySQL в Ubuntu 20.04

Предыдущая версия настоящего обучающего модуля составлена Хейзел Вирдо MySQL — это система управления базами данных с открытым исходным кодом, которая, как правило, устанавливается в составе…

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Debian 10 — python-django — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Debian 10

Debian 10 — python-django — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Debian 10 (buster) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-14232 CVE-2019-19844 CVE-2020-13254 CVE-2020-7471 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches […]

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How To Inspect Kubernetes Networking — step-by-step Kubernetes tutorial on Progressive Robot

How To Inspect Kubernetes Networking

Kubernetes is a container orchestration system that can manage containerized applications across a cluster of server nodes. Maintaining network connectivity between all the containers in a cluster requires some advanced networking techniques. In this article, we will briefly…

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