Logging Monitoring

How to Set Up Unbound DNS Resolver on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Set Up Unbound DNS Resolver on Debian 10

Introduction Deploying set up unbound dns resolver on debian 10 on a Debian 10 Buster 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 Before […]

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Common Problems 114979

RHEL 8 – chronyd Unsynchronized Time Causes Authentication Failures

🟡 Medium   ⏱ 5–30 min  Last verified: 29 February 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 Configure Smart Card Authentication on IBM AIX 7.2 — step-by-step IBM AIX 7.2 tutorial on Progressive Robot

How to Configure Smart Card Authentication 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 smart card authentication on ibm aix 7.2 on […]

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Ubuntu 16.04 — rake — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — rake — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 29 February 2020 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4295-1 Related CVEs: CVE-2020-8130 Upstream summary: It was discovered that Rake incorrectly handled certain files. An attacker could use this issue to possibly execute arbitrary commands. Table of contents Symptom […]

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Ubuntu 16.04 — dovecot — multiple vulnerabilities (12 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — dovecot — multiple vulnerabilities (12 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 29 February 2020 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4674-1 Related CVEs: CVE-2020-24386 CVE-2020-25275 CVE-2020-12100 CVE-2020-12673 CVE-2020-12674 CVE-2019-11500 CVE-2019-7524 CVE-2019-3814  +4 more Upstream summary: It was discovered that Dovecot incorrectly handled certain imap hibernation commands. A remote authenticated attacker […]

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How to Configure Privileged Access Management in Active Directory on Windows Server 2016 — step-by-step Windows Server 2016 tutorial on Progressive Robot

How to Configure Privileged Access Management in Active Directory on Windows Server 2016

How to Configure Windows Server 2016 Privileged Access Management Privileged Access Management (PAM) is an Active Directory feature introduced with Windows Server 2016 that provides a time-based, just-in-time approach to granting privileged group memberships. Instead of users having permanent membership in groups like Domain Admins, PAM allows them to request temporary membership for the duration […]

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SLES 15 — evince — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — evince — multiple vulnerabilities (7 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 29 February 2020 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2019:14141-1 (see also SUSE bugzilla) Related CVEs: CVE-2019-1010006 CVE-2010-2640 CVE-2010-2641 CVE-2010-2642 CVE-2010-2643 CVE-2017-1000083 CVE-2019-11459 Upstream summary: Evince 3.26.0 is affected by buffer overflow. The impact is: DOS / Possible code execution. The […]

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Arch Linux — pacman — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — pacman — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-201910-13 Related CVEs: CVE-2019-18183 CVE-2019-18182 CVE-2019-9686 Upstream summary: Type: arbitrary command execution. Status: Fixed. Affected: 5.1.3-1. Fixed in: 5.2.0-1. Group: AVG-1049. Table of contents Symptom & Impact Environment & Reproduction […]

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Common Problems 121024

Debian 10 – kernel or grub updates fail because /boot is full

🟠 High   ⏱ 5–30 min  Last verified: 28 February 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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openSUSE Tumbleweed — file-roller — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — file-roller — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2020:0825-1 (see also SUSE bugzilla) Related CVEs: CVE-2020-11736 CVE-2020-36314 Upstream summary: fr-archive-libarchive.c in GNOME file-roller through 3.36.1 allows Directory Traversal during extraction because it lacks a check of whether a file's parent […]

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