How to Install and Configure Ingress Controller using Ambassador
In this tutorial, you will learn how to configure and install the Ambassador Edge Stack ingress.
openSUSE Tumbleweed — tre — vulnerability — patch and remediation guide
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read • Source: SUSE advisory openSUSE-SU-2020:0554-1 (see also SUSE bugzilla) Related CVEs: CVE-2016-8859 Upstream summary: Multiple integer overflows in the TRE library and musl libc allow attackers to cause memory corruption via a large number of (1) […]
Debian 10 – apt update shows NO_PUBKEY and rejects repository signatures
🟠 High ⏱ 5–30 min Last verified: 15 June 2020 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 & […]
Ubuntu 16.04 LTS – high CPU caused by kworker threads
🟠 High ⏱ 5–30 min Last verified: 15 June 2020 Affected versions: Ubuntu 16.04 LTS Ubuntu 16.04 Ubuntu 16.04.7 📖 ~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 […]
Ubuntu 16.04 LTS clock drift and NTP synchronization failures
🟡 Medium ⏱ 5–30 min Last verified: 15 June 2020 📖 ~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 Configure Rate Limiting in Nginx on Debian 10
Introduction How to Configure Rate Limiting in Nginx on Debian 10 is a fundamental operation for any administrator maintaining a Debian 10 Buster server. Debian 10 Buster ships with the Linux 6.12 kernel, updated toolchains, and a fully refreshed package archive — meaning version numbers, configuration file paths, and some dependency chains differ from Debian […]
Ubuntu 20.04 LTS Unattended-Upgrades Fails on Held Packages
🟡 Medium ⏱ 5–30 min Last verified: 15 June 2020 Affected versions: 20.04 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 & […]
RHEL 8 Cockpit Web Console Unreachable from Network
🟡 Medium ⏱ 5–30 min Last verified: 15 June 2020 Affected versions: 8.5 8.6 8.7 8.8 8.9 8.10 📖 ~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 & […]
Windows Server 2019 – Windows Defender false positive blocking app – Fix & Prevention
🟡 Medium ⏱ 5–30 min Last verified: 15 June 2020 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 […]
Alpine Linux edge — libmad — multiple vulnerabilities (5 CVEs) — patch and remediation guide
🟠 High ⏱ 15–60 min Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 0.15.1b-r9 📖 ~4 min read • Source: Alpine secdb entry — libmad 0.15.1b-r9 Related CVEs: CVE-2017-8372 CVE-2017-8373 CVE-2017-8374 CVE-2017-11552 CVE-2018-7263 Upstream summary: Alpine community repository for vedge ships libmad 0.15.1b-r9 which addresses CVE-2017-8372. Table of contents […]