Cloud Cost Optimisation UK: 10 Proven Savings
Cloud cost optimisation UK guide for SMEs covering cost visibility, tagging, budgets, rightsizing, reserved capacity, storage, SaaS waste, and FinOps habits.
How to Install and Configure Apache HTTPD on RHEL 10
Introduction Setting up install and configure apache httpd on a RHEL 10 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Install and Configure Apache HTTPD on RHEL 10, with all the commands you need, the SELinux and firewalld considerations to keep in mind, and […]
Debian 10 – ext4 Filesystem Remounts Read-Only – Root Cause and Repair
🔴 Critical ⏱ 5–30 min Last verified: 19 May 2026 Affected versions: Debian 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 & […]
openSUSE Tumbleweed — mosh — 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 Related CVEs: CVE-2012-2385 Upstream summary: The terminal dispatcher in mosh before 1.2.1 allows remote authenticated users to cause a denial of service (long loop and CPU consumption) via an escape sequence […]
Ubuntu 18.04 LTS – dpkg interrupted state blocks package operations – Fix & Prevention
🟠 High ⏱ 5–30 min Last verified: 19 May 2026 Affected versions: Ubuntu 18.04 LTS 📖 ~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 […]
Alpine Linux edge — pcre — multiple vulnerabilities (4 CVEs) — patch and remediation guide
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 8.44-r0 📖 ~4 min read • Source: Alpine secdb entry — pcre 8.44-r0 Related CVEs: CVE-2020-14155 CVE-2017-7186 CVE-2017-11164 CVE-2017-16231 Upstream summary: Alpine main repository for vedge ships pcre 8.44-r0 which addresses CVE-2020-14155. Table of contents Symptom […]
Ubuntu 20.04 LTS UFW Rules Not Persisting as Expected
🟡 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 […]
Alpine Linux edge — jansson — vulnerability — patch and remediation guide
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 0 📖 ~4 min read • Source: Alpine secdb entry — jansson 0 Related CVEs: CVE-2020-36325 Upstream summary: Alpine main repository for vedge ships jansson 0 which addresses CVE-2020-36325. Table of contents Symptom & Impact Environment […]
How to Configure PostgreSQL Remote Access on Debian 10
Introduction This guide explains how to Configure PostgreSQL Remote Access on Debian 10 on Debian 10 Buster. Debian Buster 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 10 install with the […]
Windows Server 2016 — MSU install fails with architecture mismatch on Server Core host — Fix & Prevention
🟢 Low ⏱ 5–30 min Last verified: 05 June 2027 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 […]
