IT, Cloud & DevOps Blog

Oracle Linux 8 — gd — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — gd — vulnerability — patch and remediation guide (ELSA-2020-4659)

🟡 Medium   ⏱ 10–30 min  Last verified: 18 November 2019 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-4659 Related CVEs: CVE-2018-14553 CVE-2019-6977 CVE-2019-6978 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification […]

Read more
Common Problems 118024

Ubuntu 18.04 sudo unable to resolve host

🟡 Medium   ⏱ 5–30 min  Last verified: 17 November 2019 📖 ~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 […]

Read more
FreeBSD 12 — avahi-qt — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — avahi-qt — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 17 November 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: avahi — denial of service Related CVEs: CVE-2010-2244 CVE-2011-1002 Upstream summary: Avahi developers reports: A vulnerability has been reported in Avahi, which can be exploited by malicious people to cause […]

Read more
Common Problems 112497

Windows Server 2019 – NDIS lightweight filter drops packets after policy push – Fix and Prevention

🟠 High   ⏱ 5–30 min  Last verified: 17 November 2019 Affected versions: Windows Server 2019 📖 ~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 […]

Read more
How to Configure AppArmor Enforcement on SLES 15 — step-by-step SUSE Linux Enterprise 15 tutorial on Progressive Robot

How to Configure AppArmor Enforcement on SLES 15

Introduction This tutorial covers How to Configure AppArmor Enforcement 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. Step 1 — Check AppArmor Status systemctl status apparmor aa-status Step 2 […]

Read more
CHAT