Operations

IBM AIX 7.2 — CVE-2022-42439 — vulnerability — patch and remediation guide — diagnosis and fix on IBM AIX 7.2

IBM AIX 7.2 — CVE-2022-42439 — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 15–45 min  Last verified: 5 August 2022 Affected versions: IBM AIX 7.2 📖 ~4 min read  •  Source: NVD CVE-2022-42439, IBM Support Bulletin CVE: CVE-2022-42439 NVD summary: IBM App Connect Enterprise 11.0.0.17 through 11.0.0.19 and 12.0.4.0 and 12.0.5.0 contains an unspecified vulnerability in the Discovery Connector nodes which may cause a […]

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Common Problems 113107

Windows Server 2016 — WindowsUpdate.log conversion fails because ETW decoder cannot find symbols — Fix & Prevention

🟢 Low   ⏱ 5–30 min  Last verified: 5 August 2022 Affected versions: Windows Server 2016 📖 ~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 112395

Windows Server 2019 — AD user login fails with bad username/password despite correct credentials — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 5 August 2022 Affected versions: Windows Server 2019 📖 ~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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IBM AIX 7.3 — CVE-2022-40753 — xss — patch and remediation guide — diagnosis and fix on IBM AIX 7.3

IBM AIX 7.3 — CVE-2022-40753 — xss — patch and remediation guide

🟡 Medium   ⏱ 15–45 min  Last verified: 5 August 2022 Affected versions: IBM AIX 7.3 📖 ~4 min read  •  Source: NVD CVE-2022-40753, IBM Support Bulletin CVE: CVE-2022-40753 NVD summary: IBM InfoSphere Information Server 11.7 is vulnerable to cross-site scripting. This vulnerability allows users to embed arbitrary JavaScript code in the Web UI thus […]

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How to Set Up Kubernetes Ingress with Nginx on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Set Up Kubernetes Ingress with Nginx on RHEL 9

Kubernetes Services of type ClusterIP expose applications only within the cluster — external traffic cannot reach them directly. An Ingress resource solves this by providing HTTP/HTTPS routing from outside the cluster to internal services based on hostnames and URL paths. The Nginx Ingress Controller is the most widely deployed ingress controller, running as a pod […]

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IBM AIX 7.2 — CVE-2022-43875 — denial of service — patch and remediation guide — diagnosis and fix on IBM AIX 7.2

IBM AIX 7.2 — CVE-2022-43875 — denial of service — patch and remediation guide

🟡 Medium   ⏱ 15–45 min  Last verified: 5 August 2022 Affected versions: IBM AIX 7.2 📖 ~4 min read  •  Source: NVD CVE-2022-43875, IBM Support Bulletin CVE: CVE-2022-43875 NVD summary: IBM Financial Transaction Manager for SWIFT Services for Multiplatforms 3.2.4 could allow an authenticated user to lock additional RM authorizations, resulting in a denial […]

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AlmaLinux 8 — iprutils — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — iprutils — 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-2020:4501 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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How to Set Up borgbackup on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Set Up borgbackup on Debian 11

Introduction Deploying set up borgbackup on debian 11 on a Debian 11 Bullseye machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites You will need […]

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Debian 11 — ppp — multiple vulnerabilities (10 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — ppp — multiple vulnerabilities (10 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 5 August 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2004-1002 CVE-2006-2194 CVE-2008-5366 CVE-2008-5367 CVE-2014-3158 CVE-2015-3310 CVE-2018-11574 CVE-2020-8597  +2 more Upstream summary: Integer underflow in pppd in cbcp.c for ppp 2.4.1 allows remote attackers to cause a denial […]

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Ubuntu 22.04 — pypy3 — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — pypy3 — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 5 August 2022 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6524-1 Related CVEs: CVE-2022-37454 Upstream summary: Nicky Mouha discovered that PyPy incorrectly handled certain SHA-3 operations. An attacker could possibly use this issue to cause PyPy to crash, resulting in […]

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