chris

Debian 9 — salt — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 9

Debian 9 — salt — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 23 January 2021 Affected versions: Debian 9 (stretch) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-17361 CVE-2020-11651 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
Android Snackbar Example Tutorial — step-by-step DevOps tutorial on Progressive Robot

Android Snackbar Example Tutorial

In this tutorial we'll discuss and implement various forms of Android Snackbar widget in our application. Android Snackbar Snackbar in android is a new widget introduced with the Material Design library as a replacement of a Toast. Android Snackbar is light-weight widget and they are used to show messages in the bottom of the application […]

Read more
Oracle Linux 8 — python3 — security and stability fixes — required update — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — python3 — security and stability fixes — required update (ELSA-2020-1764)

🟡 Medium   ⏱ 10–30 min  Last verified: 22 January 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-1764 Related CVEs: CVE-2018-20852 CVE-2019-16056 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
Alpine Linux edge — x11vnc — vulnerability — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — x11vnc — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 0.9.16-r2 📖 ~4 min read  •  Source: Alpine secdb entry — x11vnc 0.9.16-r2 Related CVEs: CVE-2020-29074 Upstream summary: Alpine community repository for vedge ships x11vnc 0.9.16-r2 which addresses CVE-2020-29074. Table of contents Symptom & Impact Environment […]

Read more
Common Problems 117575

pip SSL CERTIFICATE_VERIFY_FAILED Behind Proxy

🟡 Medium   ⏱ 5–30 min  Last verified: 22 January 2021 Affected versions: 20.04 📖 ~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 […]

Read more
Common Problems 113062

Windows Server 2016 — Affinity mode mismatch causes session stickiness failures for stateful applications — Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 22 January 2021 Affected versions: Windows Server 2016 📖 ~2 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 Secure Nginx with Let's Encrypt on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Secure Nginx with Let’s Encrypt on Oracle Linux 8

Introduction Oracle Linux 8 ships with a stable, security-hardened base that makes deploying secure nginx with let’s encrypt on oracle linux 8 both straightforward and auditable. This tutorial covers the complete procedure for how to Secure Nginx with Let’s Encrypt on Oracle Linux 8, including dnf module streams where applicable, systemd unit management, and the […]

Read more
CHAT