Systemd Services

How to Install SaltStack on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Install SaltStack on Oracle Linux 8

Introduction How to Install SaltStack on Oracle Linux 8 on Oracle Linux 8 provides administrators with a robust, enterprise-ready workflow that integrates cleanly with systemd, SELinux, firewalld, and the modern AppStream module system. In this tutorial we will walk through every step required, from package installation to verification, so that the resulting configuration is reproducible […]

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SLES 12 — chrony — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on SLES 12

SLES 12 — chrony — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 3 February 2021 Affected versions: SLES 12 📖 ~4 min read  •  Source: SUSE security advisory Related CVEs: CVE-2014-0021 CVE-2020-14367 CVE-2012-4502 CVE-2012-4503 CVE-2016-1567 Upstream summary: Chrony before 1.29.1 has traffic amplification in cmdmon protocol Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick […]

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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-2020-0512)

🟠 High   ⏱ 15–60 min  Last verified: 3 February 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-0512 Related CVEs: CVE-2020-6800 CVE-2020-6798 CVE-2020-6796 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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Oracle Linux 8 — .NET Core on Red Hat Enterprise Linux — security and stability fixes — required update — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — .NET Core on Red Hat Enterprise Linux — security and stability fixes — required update (ELSA-2019-2731)

🟡 Medium   ⏱ 10–30 min  Last verified: 2 February 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2019-2731 Related CVEs: CVE-2019-1301 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 117497

Ubuntu 20.04 LTS – journal logs fill root filesystem unexpectedly – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 2 February 2021 Affected versions: Ubuntu 20.04 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 115570

NFS Mount Fails During Boot Sequence

🟡 Medium   ⏱ 5–30 min  Last verified: 2 February 2021 📖 ~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 Node Exporter on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Configure Node Exporter on Oracle Linux 8

Introduction Oracle Linux 8 ships with a stable, security-hardened base that makes deploying configure node exporter on oracle linux 8 both straightforward and auditable. This tutorial covers the complete procedure for how to Configure Node Exporter on Oracle Linux 8, including dnf module streams where applicable, systemd unit management, and the firewalld rules required for […]

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IBM AIX 7.2 — CVE-2021-29814 — xss — patch and remediation guide — diagnosis and fix on IBM AIX 7.2

IBM AIX 7.2 — CVE-2021-29814 — xss — patch and remediation guide

🟡 Medium   ⏱ 15–45 min  Last verified: 2 February 2021 Affected versions: IBM AIX 7.2 📖 ~4 min read  •  Source: NVD CVE-2021-29814, IBM Support Bulletin CVE: CVE-2021-29814 NVD summary: IBM Jazz for Service Management 1.1.3.10 and IBM Tivoli Netcool/OMNIbus_GUI is vulnerable to stored cross-site scripting. This vulnerability allows users to embed arbitrary JavaScript […]

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Alpine Linux edge — tcpreplay — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — tcpreplay — multiple vulnerabilities (7 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 4.4.1-r0 📖 ~4 min read  •  Source: Alpine secdb entry — tcpreplay 4.4.1-r0 Related CVEs: CVE-2021-45386 CVE-2021-45387 CVE-2020-24265 CVE-2020-24266 CVE-2019-8381 CVE-2019-8376 CVE-2019-8377 Upstream summary: Alpine community repository for vedge ships tcpreplay 4.4.1-r0 which addresses CVE-2021-45386. Table […]

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Ubuntu 16.04 — libdbi-perl — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — libdbi-perl — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 2 February 2021 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5030-2 Related CVEs: CVE-2014-10402 CVE-2020-14393 CVE-2019-20919 CVE-2020-14392 Upstream summary: USN-5030-1 addressed vulnerabilities in Perl DBI module. This update provides the corresponding updates for Ubuntu 16.04 ESM. Original advisory details: It […]

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