Securing the Distributed Network: Best Practices for Managing Employee-Owned Devices and Home Wi-Fi Risks
A practical guide to controlling BYOD and home Wi-Fi risks with clear policies, technical controls, and rollout steps for distributed teams.
OpenBSD 7.5 — pffrag — errata 016_pffrag — reliability fix — syspatch and remediation
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: OpenBSD 7.5 📖 ~4 min read • Source: OpenBSD 7.5 errata 016_pffrag Errata topic: Reliability: pffrag (All architectures) Issued: February 10, 2025 Upstream summary: pf(4) could reassemble overlapping fragments into an incorrect IP packet that was too short. Table of contents Symptom […]
Ubuntu 20.04 — velocity — vulnerability — patch and remediation guide
🟢 Low ⏱ 5–15 min Last verified: 25 May 2026 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read • Source: Ubuntu Security Notice USN-6281-1 Related CVEs: CVE-2020-13936 Upstream summary: Alvaro Munoz discovered that Velocity Engine incorrectly handled certain inputs. If a user or an automated system were tricked into opening a specially crafted […]
Oracle Linux 8 — glibc security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2019-3513)
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read • Source: ELSA advisory ELSA-2019-3513 Related CVEs: CVE-2016-10739 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]
Ubuntu 18.04 LTS – Docker daemon fails to start after storage driver conflict – Fix & Prevention
🟠 High ⏱ 5–30 min Last verified: 20 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 […]
Ubuntu 26.04 LTS – unmet dependencies and held packages during apt upgrade – Fix & Prevention
🟠 High ⏱ 5–30 min Last verified: 19 May 2026 Affected versions: Ubuntu 26.04 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 […]
How to Set Up ModSecurity WAF on Oracle Linux 8
Introduction This tutorial demonstrates how to Set Up ModSecurity WAF on Oracle Linux 8 on Oracle Linux 8. It is written for administrators who want a repeatable, well-explained walkthrough that goes beyond a bare command list and explains each configuration choice. Every command is tested against a freshly registered Oracle Linux 8 system with the […]
RHEL 9 kernel update completed but old kernel still boots
🟡 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 […]
SLES 15 — python2-M2Crypto — vulnerability — patch and remediation guide
🟠 High ⏱ 15–60 min Last verified: 25 May 2026 Affected versions: SLES 15 📖 ~4 min read • Source: SUSE advisory SUSE-FU-2024:1448-1 (see also SUSE bugzilla) Related CVEs: CVE-2020-25657 Upstream summary: A flaw was found in all released versions of m2crypto, where they are vulnerable to Bleichenbacher timing attacks in the RSA decryption […]
RHEL 10 SSH Public Key Authentication Suddenly Stops Working
🟠 High ⏱ 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 & […]
