Linux

How to Install Go on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Install Go on RHEL 7

How to Install Go on RHEL 7 Go (also called Golang) is a statically typed, compiled programming language developed by Google, designed for simplicity, efficiency, and excellent support for concurrent programming. It has become a popular choice for building command-line tools, microservices, container runtimes (Docker and Kubernetes are both written in Go), and high-performance network […]

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Common Problems 124607

Oracle Linux 9 – Common Problem 015 – Diagnosis and Fix

🟡 Medium   ⏱ 5–30 min  Last verified: 22 February 2023 Affected versions: Oracle Linux 9 📖 ~2 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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Alpine Linux edge — libspf2 — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — libspf2 — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 1.2.11-r4 📖 ~4 min read  •  Source: Alpine secdb entry — libspf2 1.2.11-r4 Related CVEs: CVE-2021-20314 CVE-2023-42118 CVE-2021-33912 CVE-2021-33913 Upstream summary: Alpine main repository for vedge ships libspf2 1.2.11-r4 which addresses CVE-2021-20314. Table of contents Symptom […]

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openSUSE Tumbleweed — rage-encryption — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — rage-encryption — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2025:15094-1 (see also SUSE bugzilla) Related CVEs: CVE-2023-22895 Upstream summary: The bzip2 crate before 0.4.4 for Rust allow attackers to cause a denial of service via a large file that triggers an […]

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CentOS Stream 9 — procps-ng — vulnerability — patch and remediation guide — diagnosis and fix on CentOS Stream 9

CentOS Stream 9 — procps-ng — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 22 February 2023 Affected versions: CentOS Stream 9 📖 ~4 min read  •  Source: AlmaLinux/RHEL advisory ALSA-2023:6705 Related CVEs: CVE-2023-4016 Upstream summary: The procps-ng packages contain a set of system utilities that provide system information, including ps, free, skill, pkill, pgrep, snice, tload, top, uptime, vmstat, w, […]

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Gentoo Linux — www-apache/modsecurity-crs — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — www-apache/modsecurity-crs — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202305-25 Related CVEs: CVE-2021-35368 CVE-2022-39955 CVE-2022-39956 CVE-2022-39957 CVE-2022-39958 Upstream summary: Multiple vulnerabilities have been discovered in OWASP ModSecurity Core Rule Set. Please review the CVE identifiers referenced below for details. Table of […]

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Oracle Linux 9 — squid — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — squid — vulnerability — patch and remediation guide (ELSA-2022-6839)

🟠 High   ⏱ 15–60 min  Last verified: 22 February 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-6839 Related CVEs: CVE-2022-41318 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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Oracle Linux 8 — libxml2 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — libxml2 — vulnerability — patch and remediation guide (ELSA-2022-5317)

🟡 Medium   ⏱ 10–30 min  Last verified: 22 February 2023 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-5317 Related CVEs: CVE-2022-29824 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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Como usar o ps, kill e nice para gerenciar processos no Linux — step-by-step Linux tutorial on Progressive Robot

Como usar o ps, kill e nice para gerenciar processos no Linux

O gerenciamento de processos é uma habilidade essencial ao usar qualquer sistema de computador. Isso é ainda mais importante ao administrar um ambiente de servidor. Este artigo irá introduzir algumas ferramentas poderosas que podem ser usadas para gerenciar processos em um sistema Linux.

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Oracle Linux 9 — tcpdump — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — tcpdump — vulnerability — patch and remediation guide (ELSA-2024-2211)

🟡 Medium   ⏱ 10–30 min  Last verified: 22 February 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2024-2211 Related CVEs: CVE-2021-41043 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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