Operations

How to Configure Mandatory Integrity Control on Oracle Linux 9 — step-by-step Oracle Linux 9 tutorial on Progressive Robot

How to Configure Mandatory Integrity Control on Oracle Linux 9

Introduction Setting up configure mandatory integrity control on oracle linux 9 on a Oracle Linux 9 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Configure Mandatory Integrity Control on Oracle Linux 9, with all the commands you need, the SELinux and firewalld considerations to […]

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Common Problems 114519

Disk Fills Quickly Because Journald Logs Grow Unbounded

🟡 Medium   ⏱ 5–30 min  Last verified: 9 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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Ubuntu 14.04 — libxpm — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 14.04

Ubuntu 14.04 — libxpm — multiple vulnerabilities (6 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 9 May 2023 Affected versions: Ubuntu 14.04 (trusty) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6408-2 Related CVEs: CVE-2023-43786 CVE-2023-43787 CVE-2023-43788 CVE-2023-43789 CVE-2022-46285 CVE-2016-10164 Upstream summary: USN-6408-1 fixed several vulnerabilities in libXpm. This update provides the corresponding update for Ubuntu 14.04 LTS, Ubuntu 16.04 LTS […]

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Ubuntu 18.04 — schroot — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — schroot — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 9 May 2023 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5584-1 Related CVEs: CVE-2022-2787 Upstream summary: It was discovered that Schroot incorrectly handled certain Schroot names. An attacker could possibly use this issue to break schroot's internal state causing a […]

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

Oracle Linux 9 — thunderbird — vulnerability — patch and remediation guide (ELSA-2023-3587)

🟠 High   ⏱ 15–60 min  Last verified: 9 May 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-3587 Related CVEs: CVE-2023-34414 CVE-2023-34416 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 9 — httpd — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — httpd — vulnerability — patch and remediation guide (ELSA-2022-9680)

🟠 High   ⏱ 15–60 min  Last verified: 9 May 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-9680 Related CVEs: CVE-2022-31813 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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How to Configure Software-Defined Networking Basics on Windows Server 2012 R2 — step-by-step Windows Server 2012 R2 tutorial on Progressive Robot

How to Configure Software-Defined Networking Basics on Windows Server 2012 R2

How to Configure Software-Defined Networking Basics on Windows Server 2012 R2 Software-Defined Networking (SDN) in Windows Server 2012 R2 is implemented through Hyper-V Network Virtualization (HNV), which allows multiple tenant networks to coexist on a shared physical network fabric while remaining logically isolated. HNV uses NVGRE (Network Virtualization Generic Routing Encapsulation) to encapsulate virtual machine […]

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

Oracle Linux 9 — libnbd — vulnerability — patch and remediation guide (ELSA-2024-2204)

🟡 Medium   ⏱ 10–30 min  Last verified: 9 May 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2024-2204 Related CVEs: CVE-2023-5871 CVE-2023-5215 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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