How To Install and Use Docker Compose on CentOS 7
Docker is a great tool, but to really take full advantage of its potential
Debian 10 — pam-python — vulnerability — patch and remediation guide
🟢 Low ⏱ 5–15 min Last verified: 25 May 2026 Affected versions: Debian 10 (buster) 📖 ~4 min read • Source: Debian Security Tracker Related CVEs: CVE-2019-16729 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]
Getting Started with ES6 Arrow Functions in JavaScript
With ES6, there were many updates to the JavaScript, including the spread operator, object destructuring, new type of variables, and more. One of the most notable changes were *arrow functions*, a new and concise way to write functions. With arrow functions, you can define a readable and concise function in one line. In this article, we will walk through the basics of arrow functions and discuss their benefits.
How to Deploy a Ruby on Rails Application on RHEL 8
Ruby on Rails is a full-stack web framework that prioritises convention over configuration, making it possible to stand up a production-ready application in minutes. Deploying Rails on RHEL 8 involves generating the application, running database migrations, serving it through the built-in Puma application server, and placing Nginx in front as a reverse proxy. This tutorial […]
openSUSE Tumbleweed — tnef — vulnerability — patch and remediation guide
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read • Source: SUSE security advisory (see also SUSE bugzilla) Related CVEs: CVE-2017-8911 Upstream summary: An integer underflow has been identified in the unicode_to_utf8() function in tnef 1.4.14. This might lead to invalid write operations, controlled by […]
Ubuntu 16.04 LTS kernel panic after package upgrade
🟡 Medium ⏱ 5–30 min Last verified: 20 May 2026 📖 ~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 […]
openSUSE Tumbleweed — bsdiff — vulnerability — patch and remediation guide
🟠 High ⏱ 15–60 min Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read • Source: SUSE advisory SUSE-SU-2022:3094-1 (see also SUSE bugzilla) Related CVEs: CVE-2014-9862 Upstream summary: Integer signedness error in bspatch.c in bspatch in bsdiff, as used in Apple OS X before 10.11.6 and other products, allows remote […]
RHEL 8 – systemd StartLimitHit Keeps Critical Service Down
🟡 Medium ⏱ 5–30 min Last verified: 19 May 2026 📖 ~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 […]
How to Set Up Uptime Kuma on SLES 15
Introduction This tutorial covers How to Set Up Uptime Kuma on SLES 15 on SLES 15. SLES 15 (SUSE Linux Enterprise Server 16) is SUSE’s enterprise-grade Linux distribution. It uses the zypper package manager, AppArmor for mandatory access control, and systemctl for service management. Prerequisites Ensure your SLES 15 system is up to date: zypper […]
RHEL 10 – chronyd not syncing time behind restrictive firewall – Fix & Prevention
🟡 Medium ⏱ 5–30 min Last verified: 19 May 2026 Affected versions: RHEL 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 & […]
