CSS will-change Property: When and When Not to Use It
Understand the will-change property in CSS and how it can be use to make your animations and transitions more performant by giving hints to the browser.
How to Configure Mandatory Access Control on Debian 9
Introduction This guide explains how to Configure Mandatory Access Control 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 […]
Oracle Linux 8 — java-1.8.0-openjdk — security and stability fixes — required update (ELSA-2024-0265)
🟠 High ⏱ 15–60 min Last verified: 13 October 2020 Affected versions: Oracle Linux 8 📖 ~4 min read • Source: ELSA advisory ELSA-2024-0265 Related CVEs: CVE-2024-20945 CVE-2024-20918 CVE-2024-20921 CVE-2024-20926 CVE-2024-20952 CVE-2024-20919 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]
Docker Containers Cannot Reach Internet
🟠 High ⏱ 5–30 min Last verified: 13 October 2020 Affected versions: Debian 9 📖 ~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 & […]
Ubuntu 14.04 LTS – Apache fails to start because port 80 is in use
🟠 High ⏱ 5–30 min Last verified: 13 October 2020 Affected versions: Ubuntu 14.04 LTS Ubuntu 14.04 Ubuntu 14.04.6 📖 ~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 […]
Networking Service Fails to Start with ifupdown on Ubuntu 14.04
🟡 Medium ⏱ 5–30 min Last verified: 13 October 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 […]
IBM AIX 7.1 — CVE-2020-4406 — vulnerability — patch and remediation guide
🟡 Medium ⏱ 15–45 min Last verified: 13 October 2020 Affected versions: IBM AIX 7.1 📖 ~4 min read • Source: NVD CVE-2020-4406, IBM Support Bulletin CVE: CVE-2020-4406 NVD summary: IBM Spectrum Protect Client 8.1.7.0 through 8.1.9.1 (Linux and Windows), 8.1.9.0 trough 8.1.9.1 (AIX) and IBM Spectrum Protect for Space Management 8.1.7.0 through 8.1.9.1 […]
How to Install GitHub Actions Runner on Oracle Linux 8
Introduction Setting up install github actions runner on oracle linux 8 on a Oracle Linux 8 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Install GitHub Actions Runner on Oracle Linux 8, with all the commands you need, the SELinux and firewalld considerations to […]
Windows Server 2012 R2 — DNS resolution times out for external hosts — Fix & Prevention
🟠 High ⏱ 5–30 min Last verified: 13 October 2020 Affected versions: Windows Server 2012 R2 📖 ~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 […]
How to Set Up Bacula Client 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 set up bacula client on ibm aix 7.2 on […]
