chris

Common Problems 115389

RHEL 7 yum metadata corruption causing package install failures

🟡 Medium   ⏱ 5–30 min  Last verified: 11 October 2020 Affected versions: RHEL 7 📖 ~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 7.1 — CVE-2020-4591 — vulnerability — patch and remediation guide — diagnosis and fix on IBM AIX 7.1

IBM AIX 7.1 — CVE-2020-4591 — vulnerability — patch and remediation guide

🟢 Low   ⏱ 10–30 min  Last verified: 11 October 2020 Affected versions: IBM AIX 7.1 📖 ~4 min read  •  Source: NVD CVE-2020-4591, IBM Support Bulletin CVE: CVE-2020-4591 NVD summary: IBM Spectrum Protect Server 8.1.0.000 through 8.1.10.000 could disclose sensitive information in nondefault settings due to occasionally not encrypting the second chunk of an […]

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Arch Linux — imagemagick — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — imagemagick — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-201903-15 Related CVEs: CVE-2019-9956 CVE-2016-7906 CVE-2016-7799 CVE-2020-13902 Upstream summary: Type: arbitrary code execution. Status: Fixed. Affected: 7.0.8.34-1. Fixed in: 7.0.8.35-1. Group: AVG-931. Table of contents Symptom & Impact Environment & […]

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How to Configure SSL/TLS with OpenSSL on SLES 15 — step-by-step SUSE Linux Enterprise 15 tutorial on Progressive Robot

How to Configure SSL/TLS with OpenSSL on SLES 15

Introduction This tutorial covers How to Configure SSL/TLS with OpenSSL on SLES 15 on SLES 15. SLES 15 (SUSE Linux Enterprise Server 16) is SUSE’s enterprise-grade Linux distribution. It uses the zypper package manager, AppArmor for mandatory access control, and systemctl for service management. Prerequisites Ensure your SLES 15 system is up to date: zypper […]

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Common Problems 113066

Windows Server 2016 TempDB on System Volume Causing Server-Wide Disk Contention – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 11 October 2020 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 112443

Windows Server 2019 — DHCP failover partnership enters communication interrupted state and lease replication stalls — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 11 October 2020 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 7.2 — CVE-2020-4657 — xss — patch and remediation guide — diagnosis and fix on IBM AIX 7.2

IBM AIX 7.2 — CVE-2020-4657 — xss — patch and remediation guide

🟡 Medium   ⏱ 15–45 min  Last verified: 11 October 2020 Affected versions: IBM AIX 7.2 📖 ~4 min read  •  Source: NVD CVE-2020-4657, IBM Support Bulletin CVE: CVE-2020-4657 NVD summary: IBM Sterling B2B Integrator 5.2.0.0 through 6.0.3.2 Standard Edition is vulnerable to cross-site scripting. This vulnerability allows users to embed arbitrary JavaScript code in […]

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How to Configure iSCSI Storage on IBM AIX 7.1 — step-by-step IBM AIX 7.1 tutorial on Progressive Robot

How to Configure iSCSI Storage on IBM AIX 7.1

Introduction IBM AIX 7.1 is the latest release of IBM’s enterprise-grade UNIX operating system, running on IBM Power Systems hardware. Known for its reliability, security, and performance in mission-critical environments, AIX 7.1 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to configure iscsi storage on ibm aix 7.1 on IBM […]

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Ubuntu 16.04 — icu — multiple vulnerabilities (11 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — icu — multiple vulnerabilities (11 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 11 October 2020 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5133-1 Related CVEs: CVE-2020-21913 CVE-2020-10531 CVE-2017-15422 CVE-2017-14952 CVE-2017-7867 CVE-2017-7868 CVE-2014-9911 CVE-2015-4844  +3 more Upstream summary: It was discovered that ICU contains a use after free issue. An attacker could use […]

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Initial Server Setup with Arch Linux — step-by-step Linux tutorial on Progressive Robot

Initial Server Setup with Arch Linux

This tutorial covers how to login with root, how to change the root password, how to create a new user, how to give the new user root privileges, how to change the port, and how to disable root login in. This tutorial is written for Ubuntu. When you first create your server, this tutorial explains the first steps you need to take. This tutorial is written for Arch Linux.

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