Linux

Oracle Linux 8 — .NET 6.0 security, bug fix, and — enhancement update — new behaviour and fixes — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — .NET 6.0 security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2023-4059)

🟠 High   ⏱ 15–60 min  Last verified: 28 January 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-4059 Related CVEs: CVE-2023-33170 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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Common Problems 118620

Ubuntu 16.04 LTS – certificate verify failed due to outdated CA bundle – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 28 January 2022 Affected versions: Ubuntu 16.04 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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AlmaLinux 8 — sysfsutils — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — sysfsutils — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALBA-2022:2099 Upstream summary: For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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Common Problems 118013

Ubuntu 18.04 LTS Netplan apply breaks remote connectivity

🟡 Medium   ⏱ 5–30 min  Last verified: 28 January 2022 📖 ~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 Set Up Buildkite Agent on CentOS Stream 9 — step-by-step CentOS Stream 9 tutorial on Progressive Robot

How to Set Up Buildkite Agent on CentOS Stream 9

Introduction CentOS Stream 9 ships with a stable, security-hardened base that makes deploying set up buildkite agent on centos stream 9 both straightforward and auditable. This tutorial covers the complete procedure for how to Set Up Buildkite Agent on CentOS Stream 9, including dnf module streams where applicable, systemd unit management, and the firewalld rules […]

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Debian 11 — sa-exim — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — sa-exim — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 28 January 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2006-1251 CVE-2019-19920 Upstream summary: Argument injection vulnerability in greylistclean.cron in sa-exim 4.2 allows remote attackers to delete arbitrary files via an email with a To field that contains […]

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SLES 15 — osasnmpd — vulnerability — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — osasnmpd — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 28 January 2022 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2021:0776-1 (see also SUSE bugzilla) Related CVEs: CVE-2021-25316 Upstream summary: A Insecure Temporary File vulnerability in s390-tools of SUSE Linux Enterprise Server 12-SP5, SUSE Linux Enterprise Server 15-SP2 allows local attackers to […]

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How To Install Node.js on Rocky Linux 8 — step-by-step Linux tutorial on Progressive Robot

How To Install Node.js on Rocky Linux 8

In this guide, we will show you three different ways of getting Node.js installed on a Rocky Linux 8 server: using `dnf` to install the `nodejs` package from Rocky’s default AppStream repository; installing via the NodeSource repository; installing `nvm`, the Node Version Manager, and using it to install and manage multiple versions of `node`

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Oracle Linux 8 — Unbreakable Enterprise kernel-container — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — Unbreakable Enterprise kernel-container — vulnerability — patch and remediation guide (ELSA-2021-9421)

🟠 High   ⏱ 15–60 min  Last verified: 28 January 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-9421 Related CVEs: CVE-2021-3656 CVE-2021-3653 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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