Operations

Oracle Linux 9 — git-lfs — security and stability fixes — required update — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — git-lfs — security and stability fixes — required update (ELSA-2023-2357)

🟡 Medium   ⏱ 10–30 min  Last verified: 28 April 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-2357 Related CVEs: CVE-2022-27664 CVE-2022-30632 CVE-2022-32189 CVE-2022-1705 CVE-2022-30630 CVE-2022-32148 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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Common Problems 111738

Windows Server 2022 — Remote Desktop Licensing service not issuing CALs — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 28 April 2023 Affected versions: Windows Server 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 […]

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openSUSE Tumbleweed — cherrytree — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — cherrytree — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2022:10230-1 (see also SUSE bugzilla) Related CVEs: CVE-2022-35133 Upstream summary: A cross-site scripting (XSS) vulnerability in CherryTree v0.99.30 allows attackers to execute arbitrary web scripts or HTML via a crafted payload injected […]

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How to Configure Concourse CI on Oracle Linux 9 — step-by-step Oracle Linux 9 tutorial on Progressive Robot

How to Configure Concourse CI on Oracle Linux 9

Introduction Setting up configure concourse ci 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 Concourse CI on Oracle Linux 9, with all the commands you need, the SELinux and firewalld considerations to keep in […]

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Ubuntu 16.04 — klibc — multiple vulnerabilities (9 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — klibc — multiple vulnerabilities (9 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 28 April 2023 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7959-1 Related CVEs: CVE-2016-9843 CVE-2016-9840 CVE-2016-9841 CVE-2018-25032 CVE-2022-37434 CVE-2021-31870 CVE-2021-31871 CVE-2021-31872  +1 more Upstream summary: It was discovered that zlib, vendored in klibc, did not properly handle integer arithmetic. An […]

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

Ubuntu 18.04 — htmlunit — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 28 April 2023 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8220-1 Related CVEs: CVE-2023-49093 Upstream summary: It was discovered that HtmlUnit was vulnerable to remote code execution via XSLT when browsing an attacker-controlled webpage. An attacker could possibly use this […]

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Windows Server 2016 — KB5028167 — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Windows Server 2016

Windows Server 2016 — KB5028167 — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Windows Server 2016 📖 ~4 min read  •  Source: Microsoft KB5028167 • MSRC update-guide entry Related CVEs: CVE-2023-32046 CVE-2023-35336 CVE-2023-35308 Affected components: Windows Server 2016 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution […]

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How to Configure Teaming Network Adapters on Windows Server 2022 — step-by-step Windows Server 2022 tutorial on Progressive Robot

How to Configure Teaming Network Adapters on Windows Server 2022

How to Configure Teaming Network Adapters on Windows Server 2022 NIC Teaming combines multiple physical network adapters into a single logical adapter, providing increased bandwidth and automatic failover when an individual adapter or switch port fails. Windows Server 2022 supports two fundamentally different teaming technologies: Load Balancing and Failover (LBFO), the native Windows NIC Teaming […]

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Ubuntu 14.04 — exim4 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 14.04

Ubuntu 14.04 — exim4 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 28 April 2023 Affected versions: Ubuntu 14.04 (trusty) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6881-1 Related CVEs: CVE-2021-38371 CVE-2023-42117 CVE-2023-42119 CVE-2023-42114 CVE-2023-42115 CVE-2023-42116 CVE-2022-37452 CVE-2020-28007  +12 more Upstream summary: It was discovered that Exim did not enforce STARTTLS sync point on client side. An […]

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Amazon Linux 2 — xmlrpc-c — vulnerability — patch and remediation guide — diagnosis and fix on Amazon Linux 2

Amazon Linux 2 — xmlrpc-c — vulnerability — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2-2022-1795 Related CVEs: CVE-2022-25235 Upstream summary: A flaw was found in expat. Passing malformed 2- and 3-byte UTF-8 sequences (for example, from start tag names) to the XML processing application […]

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