How To Install and Get Started With Phalcon on an Ubuntu 12.04 VPS
In this article we will look at how to get started with Phalcon on your VPS running Ubuntu 12.04.
Arch Linux — vlc — multiple vulnerabilities (8 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-201906-22 Related CVEs: CVE-2019-5439 CVE-2019-12874 CVE-2017-9300 CVE-2017-10699 CVE-2017-8312 CVE-2017-8311 CVE-2017-8310 CVE-2020-26664 Upstream summary: Type: arbitrary code execution. Status: Fixed. Affected: 3.0.6-13. Fixed in: 3.0.7.1-1. Group: AVG-998. Table of contents Symptom […]
How To Edit the Sudoers File Safely
Edit the sudoers file safely with visudo. Validate syntax, grant least-privilege with fragments, recover from errors, and harden Linux.
How to Configure Network Controller with SDN on Windows Server 2016
How to Set Up Windows Server 2016 Network Controller Network Controller is a software-defined networking (SDN) management component introduced in Windows Server 2016 Datacenter edition. It provides a centralized, programmable point of automation for configuring, monitoring, and troubleshooting virtual and physical network infrastructure in a datacenter. Network Controller communicates with network devices using southbound APIs […]
How To Create Layout Features with Position and Z-Index in CSS
Elements of a website can interact with and overlay on top of one another in many different ways, making CSS layout challenging to control. One way to set the placement of an element is with a combination of the position property, z-index property, and the direction properties, which apply spacing values with top, right, bottom, and left. In this tutorial, you will create a page of content with a navigation element in the header, using he relative, absolute, and fixed position values.
Ubuntu 16.04 LTS UFW blocks expected traffic after rule changes
🟡 Medium ⏱ 5–30 min Last verified: 2 January 2021 📖 ~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 […]
Oracle Linux 8 — java-11-openjdk — security and stability fixes — required update (ELSA-2022-7012)
🟡 Medium ⏱ 10–30 min Last verified: 2 January 2021 Affected versions: Oracle Linux 8 📖 ~4 min read • Source: ELSA advisory ELSA-2022-7012 Related CVEs: CVE-2022-39399 CVE-2022-21624 CVE-2022-21626 CVE-2022-21618 CVE-2022-21619 CVE-2022-21628 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]
Ubuntu 18.04 LTS – NFS mount hangs and causes boot timeout
🟠 High ⏱ 5–30 min Last verified: 2 January 2021 Affected versions: Ubuntu 18.04 LTS Ubuntu 18.04 Ubuntu 18.04.6 📖 ~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 […]
Platform Engineering vs DevOps: Why Enterprises Build IDPs
A practical enterprise guide to platform engineering, DevOps, and internal developer platforms that speed software delivery without weakening governance.
Ubuntu 20.04 slow boot due to long systemd startup
🟡 Medium ⏱ 5–30 min Last verified: 2 January 2021 📖 ~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 […]
