Troubleshooting

Common Problems 121007

Debian 10 interrupted dpkg Requires Manual Configuration

🟠 High   ⏱ 5–30 min  Last verified: 25 May 2020 Affected versions: Debian 10 📖 ~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 117510

Ubuntu 20.04 LTS Slow Disk I/O Under Moderate Load

🟡 Medium   ⏱ 5–30 min  Last verified: 25 May 2020 📖 ~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 Set Up WordPress with Apache2 on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Set Up WordPress with Apache2 on Debian 10

Introduction This guide explains how to Set Up WordPress with Apache2 on Debian 10 on Debian 10 Buster. Debian Buster uses systemd for service management, nftables as the underlying packet filter (with ufw or iptables front-ends still available), and AppArmor for mandatory access control. Every command is designed for a minimal Debian 10 install with […]

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Common Problems 115535

RHEL 7 Postfix Queue Stuck By SELinux Policy

🟡 Medium   ⏱ 5–30 min  Last verified: 25 May 2020 Affected versions: RHEL 7 📖 ~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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Gentoo Linux — net-dialup/freeradius — vulnerability — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — net-dialup/freeradius — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202101-27 Upstream summary: It was discovered that Gentoo’s FreeRADIUS systemd unit set permissions on an unsafe directory on start. Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick […]

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How to Configure Kernel Tuning with vmo on IBM AIX 7.2 — step-by-step IBM AIX 7.2 tutorial on Progressive Robot

How to Configure Kernel Tuning with vmo on IBM AIX 7.2

Introduction IBM AIX 7.2 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 7.2 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to configure kernel tuning with vmo on ibm aix 7.2 […]

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SLES 15 — libsrt1 — vulnerability — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — libsrt1 — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2020 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2019:2083-1 (see also SUSE bugzilla) Related CVEs: CVE-2019-15784 Upstream summary: Secure Reliable Transport (SRT) through 1.3.4 has a CSndUList array overflow if there are many SRT connections. Table of contents Symptom & […]

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Arch Linux — lib32-gdk-pixbuf2 — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — lib32-gdk-pixbuf2 — multiple vulnerabilities (2 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-201611-12 Related CVEs: CVE-2016-6352 CVE-2020-29385 Upstream summary: Type: arbitrary code execution. Status: Fixed. Affected: 2.34.0-1. Fixed in: 2.36.0+2+ga7c869a-1. Group: AVG-1. Table of contents Symptom & Impact Environment & Reproduction Root […]

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FreeBSD 12 — libXcursor — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — libXcursor — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2020 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: libXcursor — integer overflow that can lead to heap buffer overflow Related CVEs: CVE-2013-1981 CVE-2013-1982 CVE-2013-1983 CVE-2013-1984 CVE-2013-1985 CVE-2013-1986 CVE-2013-1987 CVE-2013-1988  +12 more Upstream summary: The freedesktop.org project reports: It […]

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