Power-Independent Infrastructure: 9 Proven Island-Mode IT Moves for UK Firms
Power-Independent Infrastructure helps UK firms keep critical IT online during grid instability, power cuts, and high-peak energy shedding.
How to Perform a CIS Benchmark Audit on Debian 9
Introduction Deploying perform a cis benchmark audit on debian 9 on a Debian 9 Stretch machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites Ensure […]
openSUSE Tumbleweed — newsboat — 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-2020-26235 Upstream summary: In Rust time crate from version 0.2.7 and before version 0.2.23, unix-like operating systems may segfault due to dereferencing a dangling pointer […]
Oracle Linux 8 — nss and nspr security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2021-3572)
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read • Source: ELSA advisory ELSA-2021-3572 Related CVEs: CVE-2020-25648 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]
Debian 9 Failed to Fetch Due to Proxy Misconfiguration
🟡 Medium ⏱ 5–30 min Last verified: 19 May 2026 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 Swap Not Activating After Reboot
🟡 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 — sqlite — multiple vulnerabilities (9 CVEs) — patch and remediation guide
🟠 High ⏱ 15–60 min Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 3.34.1-r0 📖 ~4 min read • Source: Alpine secdb entry — sqlite 3.34.1-r0 Related CVEs: CVE-2021-20227 CVE-2020-13434 CVE-2020-13435 CVE-2020-11655 CVE-2019-19242 CVE-2019-19244 CVE-2019-5018 CVE-2019-8457 +1 more Upstream summary: Alpine main repository for vedge ships sqlite 3.34.1-r0 which […]
Arch Linux — libslirp — multiple vulnerabilities (6 CVEs) — patch and remediation guide
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read • Source: Arch ASA ASA-202106-49 Related CVEs: CVE-2021-3595 CVE-2021-3594 CVE-2021-3593 CVE-2021-3592 CVE-2020-29130 CVE-2020-29129 Upstream summary: Type: information disclosure. Status: Fixed. Affected: 4.5.0-1. Fixed in: 4.6.0-1. Group: AVG-2073. Table of contents Symptom & Impact Environment […]
A Practical Guide to Random Forests in Machine Learning
Explore Random Forest in machine learning—its working, advantages, and use in classification and regression with simple examples and tips.
How to Configure AppArmor in Complain Mode on SLES 12
Introduction This tutorial covers How to Configure AppArmor in Complain Mode on SLES 12 on SLES 12. SLES 12 (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. Step 1 — Check AppArmor Status systemctl status apparmor aa-status […]
