January 2021 - Page 20 of 69

Oracle Linux 8 — httpd:2.4 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — httpd:2.4 — vulnerability — patch and remediation guide (ELSA-2022-9276)

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-9276 Related CVEs: CVE-2021-33193 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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How To Create Reusable Blocks of Code with Vue Single-File Components — step-by-step Javascript tutorial on Progressive Robot

How To Create Reusable Blocks of Code with Vue Single-File Components

When creating a web application using Vue.js, it’s a best practice to construct your application in small, modular blocks of code. You can gain this modularity with Single-File Components. In this tutorial, you are going to create a SFC and use props to pass data down and slots to inject content between tags. By the end of this tutorial, you will have a general understanding of what SFCs are and how to approach code re-usability.

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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: 25 May 2026 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 & […]

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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 […]

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How to Configure rsnapshot Backups on RHEL 10 — step-by-step RHEL 10 tutorial on Progressive Robot

How to Configure rsnapshot Backups on RHEL 10

Introduction Setting up configure rsnapshot backups on a RHEL 10 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Configure rsnapshot Backups on RHEL 10, with all the commands you need, the SELinux and firewalld considerations to keep in mind, and how to validate the […]

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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 […]

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OpenBSD 7.5 — bgpd — errata 004_bgpd — reliability fix — syspatch and remediation — diagnosis and fix on OpenBSD 7.5

OpenBSD 7.5 — bgpd — errata 004_bgpd — 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 004_bgpd Errata topic: Reliability: bgpd (All architectures) Issued: June 26, 2024 Upstream summary: Repair a withdraw desyncronization problem in bgpd(8). Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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