DNS

FreeBSD 12 — adns — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — adns — multiple vulnerabilities (7 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 1 April 2020 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: adns — multiple vulnerabilities Related CVEs: CVE-2017-9103 CVE-2017-9104 CVE-2017-9105 CVE-2017-9106 CVE-2017-9107 CVE-2017-9108 CVE-2017-9109 Upstream summary: Ian Jackson and the adns project reports: Vulnerable applications: all adns callers. Exploitable by: the […]

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How to Configure the System Timezone on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Configure the System Timezone on Debian 10

Introduction How to Configure the System Timezone on Debian 10 is a fundamental operation for any administrator maintaining a Debian 10 Buster server. Debian 10 Buster ships with the Linux 6.12 kernel, updated toolchains, and a fully refreshed package archive — meaning version numbers, configuration file paths, and some dependency chains differ from Debian 10. […]

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

Oracle Linux 8 — bind — vulnerability — patch and remediation guide (ELSA-2020-2338)

🟠 High   ⏱ 15–60 min  Last verified: 1 April 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-2338 Related CVEs: CVE-2020-8617 CVE-2020-8616 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & […]

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Common Problems 121125

Debian 10 GRUB Update Fails After Package Changes

🟠 High   ⏱ 5–30 min  Last verified: 31 March 2020 Affected versions: Debian 10 📖 ~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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How to Install Jenkins on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Install Jenkins on Debian 10

Introduction How to Install Jenkins on Debian 10 is a fundamental operation for any administrator maintaining a Debian 10 Buster server. Debian 10 Buster ships with the Linux 6.12 kernel, updated toolchains, and a fully refreshed package archive — meaning version numbers, configuration file paths, and some dependency chains differ from Debian 10. This tutorial […]

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How to Install MySQL 8 on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Install MySQL 8 on RHEL 8

MySQL 8 is one of the most widely deployed relational database systems in the world, offering robust performance, strong security features, and broad application compatibility. On RHEL 8, MySQL is not included in the default AppStream modules, so you must add the official MySQL community repository before installing. This guide walks through adding the MySQL […]

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Common Problems 120981

Debian 10 – dpkg Interrupted State Blocks Package Operations – Full Recovery

🔴 Critical   ⏱ 5–30 min  Last verified: 30 March 2020 Affected versions: Debian 10 📖 ~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 115419

RHEL 7 firewalld dropping application traffic after zone change

🟠 High   ⏱ 5–30 min  Last verified: 30 March 2020 Affected versions: RHEL 7 📖 ~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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Common Problems 114984

RHEL 8 Podman Image Pull Fails With Certificate Errors

🟡 Medium   ⏱ 5–30 min  Last verified: 30 March 2020 📖 ~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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How to Configure Docker with a Non-Root User on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Configure Docker with a Non-Root User on Debian 10

Introduction Debian 10 Buster is built around the ethos of stability and free software. Setting up configure docker with a non-root user on debian 10 on Buster leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Buster freeze. Follow each step […]

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