Logging Monitoring

Common Problems 115484

Network Restart Drops Static Routes on RHEL 7

🟡 Medium   ⏱ 5–30 min  Last verified: 3 August 2019 📖 ~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 […]

Read more
Common Problems 113395

Windows Server 2016 – Hyper-V live migration fails with authentication errors – Fix & Prevention (FIX-PREVENTION-2)

🟠 High   ⏱ 5–30 min  Last verified: 3 August 2019 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 […]

Read more
How to Install PHP 7.0 CLI on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Install PHP 7.0 CLI on Debian 9

Introduction This guide explains how to Install PHP 7.0 CLI on Debian 9 on Debian 9 Stretch. Debian Stretch 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 9 install with the […]

Read more
openSUSE Tumbleweed — vagrant — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — vagrant — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE security advisory (see also SUSE bugzilla) Related CVEs: CVE-2019-16892 Upstream summary: In Rubyzip before 1.3.0, a crafted ZIP file can bypass application checks on ZIP entry sizes because data about the uncompressed size […]

Read more
Common Problems 112566

Windows Server 2019 – NetAdapter advanced offload bug disrupts DHCP failover updates – Fix and Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 3 August 2019 Affected versions: Windows Server 2019 📖 ~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 […]

Read more
How to Use filemon for I/O Monitoring on IBM AIX 7.2 — step-by-step IBM AIX 7.2 tutorial on Progressive Robot

How to Use filemon for I/O Monitoring 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 use filemon for i/o monitoring on ibm aix 7.2 […]

Read more
How to Configure Nginx as a TCP/UDP Load Balancer on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Configure Nginx as a TCP/UDP Load Balancer on Debian 9 (ON-DEBIAN-9)

Introduction Debian 9 Stretch is built around the ethos of stability and free software. Setting up configure nginx as a tcp/udp load balancer on debian 9 on Stretch leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Stretch freeze. Follow each […]

Read more
FreeBSD 12 — zabbix32-server — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — zabbix32-server — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 3 August 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: Zabbix — Remote code execution Related CVEs: CVE-2017-2824 Upstream summary: mitre reports: An exploitable code execution vulnerability exists in the trapper command functionality of Zabbix Server 2.4.X. A specially crafted […]

Read more
Arch Linux — lynis — vulnerability — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — lynis — vulnerability — 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-201705-20 Related CVEs: CVE-2017-8108 Upstream summary: Type: arbitrary file overwrite. Status: Fixed. Affected: 2.4.9-1. Fixed in: 2.5.0-1. Group: AVG-278. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

Read more
Ubuntu 18.04 — libpam-radius-auth — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — libpam-radius-auth — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 3 August 2019 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4290-1 Related CVEs: CVE-2015-9542 Upstream summary: It was discovered that libpam-radius-auth incorrectly handled certain long passwords. A remote attacker could possibly use this issue to cause libpam-radius-auth to crash, resulting […]

Read more
CHAT