How To Document Your Network with Netdot on CentOS 7
Network Documentation Tool (Netdot) is an open source tool which can help network administrators collect, organize, and maintain network documentation.
Oracle Linux 8 — java-1.8.0-openjdk — vulnerability — patch and remediation guide (ELSA-2023-5731)
🟡 Medium ⏱ 10–30 min Last verified: 28 August 2023 Affected versions: Oracle Linux 8 📖 ~4 min read • Source: ELSA advisory ELSA-2023-5731 Related CVEs: CVE-2022-40433 CVE-2023-22067 CVE-2023-22081 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification […]
Bootstrapping A Production-Ready Cluster With the cloud provider’s Kubernetes Starter Kit
Build production-ready Kubernetes clusters quickly, complete with day-2 capabilities like ingress, logging, monitoring, alerting, and backup. Streamline setting up your ideal configuration with Terraform, Flux, and Helm.
An Introduction to Cloud-Config Scripting
The the cloud provider metadata service includes a field called “user-data”, which can be used to specify a script that will be run as your server is brought online. The CloudInit program, which runs these scripts, can process a special script type called “cloud-config”. In this guide, we’ll explore how to create cloud-config files and the best ways to leverage their power.
Windows Server 2019 — KB5030265 — multiple vulnerabilities (12 CVEs) — patch and remediation guide
🟠 High ⏱ 15–60 min Last verified: 25 May 2026 Affected versions: Windows Server 2019 📖 ~4 min read • Source: Microsoft KB5030265 • MSRC update-guide entry Related CVEs: CVE-2023-38161 CVE-2023-38152 CVE-2023-38149 CVE-2023-38144 CVE-2023-38143 CVE-2023-38142 CVE-2023-38141 CVE-2023-38139 +4 more Affected components: Windows Server 2019 (Server Core installation) Table of contents Symptom & Impact Environment […]
Debian 12 — mediawiki — multiple vulnerabilities (20 CVEs) — patch and remediation guide
🟠 High ⏱ 15–60 min Last verified: 28 August 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read • Source: Debian Security Tracker Related CVEs: CVE-2004-1405 CVE-2004-2152 CVE-2004-2185 CVE-2004-2186 CVE-2004-2187 CVE-2005-0534 CVE-2005-0535 CVE-2005-0536 +12 more Upstream summary: MediaWiki 1.3.8 and earlier, when used with Apache mod_mime, does not properly handle files with two […]
How to Configure Network Bridging on Debian 12
Introduction Debian 12 Bookworm is built around the ethos of stability and free software. Setting up configure network bridging on debian 12 on Bookworm leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Bookworm freeze. Follow each step carefully and the […]
NetBSD 9.4 — php56-mysql — vulnerability — patch and remediation guide
🟢 Low ⏱ 5–15 min Last verified: 25 May 2026 Affected versions: NetBSD 9.4 📖 ~4 min read • Source: pkgsrc audit-packages entry Related CVEs: CVE-2016-7412 Upstream summary: pkgsrc audit-packages flagged php56-mysql<5.6.26 for vulnerability class 'denial-of-service'. Reference: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-7412 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis […]
How to Upgrade Oracle Linux 8 to Oracle Linux 9
Introduction How to Upgrade Oracle Linux 8 to Oracle Linux 9 on Oracle Linux 9 provides administrators with a robust, enterprise-ready workflow that integrates cleanly with systemd, SELinux, firewalld, and the modern AppStream module system. In this tutorial we will walk through every step required, from package installation to verification, so that the resulting configuration […]
NetBSD 9.4 — xscreensaver — multiple vulnerabilities (7 CVEs) — patch and remediation guide
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: NetBSD 9.4 📖 ~4 min read • Source: pkgsrc audit-packages entry Related CVEs: CVE-2003-1294 CVE-2004-2655 CVE-2007-1859 CVE-2007-5585 CVE-2015-8025 CVE-2011-2187 CVE-2021-34557 Upstream summary: pkgsrc audit-packages flagged xscreensaver<4.16 for vulnerability class 'insecure-temp-files'. Reference: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2003-1294 Table of contents Symptom & Impact Environment & Reproduction Root […]
