Linux

How To Create a SSL Certificate on Apache for Debian 7 — step-by-step Linux tutorial on Progressive Robot

How To Create a SSL Certificate on Apache for Debian 7

A SSL certificate is a way to encrypt a site’s information and create a more secure connection. While Certificate authorities can issue SSL certificates that verify the server’s details, a self-signed certificate has no third party corroboration. This tutorial explains how to create a self-signed SSL certificate, add it to your VPS, and configure the SSL file to display the certificate to the world.

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How to Install Nexus Repository Manager on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Install Nexus Repository Manager on RHEL 7

How to Install Nexus Repository Manager on RHEL 7 Sonatype Nexus Repository Manager is the industry-standard artifact repository used by thousands of enterprises to proxy, host, and distribute software packages. Whether you need to cache Maven Central artifacts to reduce CI/CD build times, host internal Docker images, store npm packages, or serve PyPI packages to […]

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Common Problems 124507

Oracle Linux 9 – Common Problem 005 – Diagnosis and Fix

🟡 Medium   ⏱ 5–30 min  Last verified: 20 May 2023 Affected versions: Oracle Linux 9 📖 ~3 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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Gentoo Linux — media-gfx/graphicsmagick — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — media-gfx/graphicsmagick — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202407-15 Related CVEs: CVE-2020-12672 CVE-2022-1270 Upstream summary: Multiple vulnerabilities have been discovered in GraphicsMagick. Please review the CVE identifiers referenced below for details. Table of contents Symptom & Impact Environment & Reproduction […]

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Common Problems 118134

Ubuntu 18.04 LTS – Python virtualenv jobs fail after system Python package changes – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 20 May 2023 Affected versions: Ubuntu 18.04 LTS 📖 ~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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Common Problems 117538

Ubuntu 20.04 LTS – DNS resolution fails with Temporary failure in name resolution

🟠 High   ⏱ 5–30 min  Last verified: 20 May 2023 Affected versions: Ubuntu 20.04 LTS Ubuntu 20.04 Ubuntu 20.04.6 📖 ~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 […]

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Common Problems 115493

RHEL 7 – NTP Time Drift Causes Kerberos and TLS Failures

🟡 Medium   ⏱ 5–30 min  Last verified: 20 May 2023 📖 ~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 & Cross-Refs References & Further […]

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Debian 11 — node-url-parse — multiple vulnerabilities (8 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — node-url-parse — multiple vulnerabilities (8 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 20 May 2023 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2018-3774 CVE-2020-8124 CVE-2021-27515 CVE-2021-3664 CVE-2022-0512 CVE-2022-0639 CVE-2022-0686 CVE-2022-0691 Upstream summary: Incorrect parsing in url-parse <1.4.3 returns wrong hostname which leads to multiple vulnerabilities such as SSRF, Open Redirect, […]

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Alpine Linux 3.18 — antiword — vulnerability — patch and remediation guide — diagnosis and fix on Alpine Linux 3.18

Alpine Linux 3.18 — antiword — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.18 / fixed in 0.37-r3 📖 ~4 min read  •  Source: Alpine secdb entry — antiword 0.37-r3 Related CVEs: CVE-2014-8123 Upstream summary: Alpine community repository for vv3.18 ships antiword 0.37-r3 which addresses CVE-2014-8123. Table of contents Symptom & Impact Environment […]

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Alpine Linux 3.18 — openjdk13 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux 3.18

Alpine Linux 3.18 — openjdk13 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.18 / fixed in 13.0.12_p4-r0 📖 ~4 min read  •  Source: Alpine secdb entry — openjdk13 13.0.12_p4-r0 Related CVEs: CVE-2022-21540 CVE-2022-21541 CVE-2022-21549 CVE-2022-25647 CVE-2022-34169 CVE-2022-21426 CVE-2022-21434 CVE-2022-21443  +12 more Upstream summary: Alpine community repository for vv3.18 ships openjdk13 13.0.12_p4-r0 which […]

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