March 2021 - Page 61 of 63

Gentoo Linux — media-sound/fluidsynth — vulnerability — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — media-sound/fluidsynth — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202107-34 Related CVEs: CVE-2021-28421 Upstream summary: FluidSynth contains a use-after-free in sfloader/fluid_sffile.c which occurs when parsing Soundfile 2 files. Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick […]

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How To Display Data from the cloud provider API with Django — step-by-step Python tutorial on Progressive Robot

How To Display Data from the cloud provider API with Django

Django is a web framework written in Python. Django has been used in websites such as Mozilla, Pinterest and Instagram. You can use Django to display information from APIs (such as Instagram posts or GitHub repositories) in your own websites and web apps. In this tutorial you will build a Django project that will display your cloud account’s Droplet information using the cloud provider’s API. When you complete this tutorial, you will be able use APIs in your own Django projects.

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How To Debug Components, State, and Events with Vue.js Devtools — step-by-step Javascript tutorial on Progressive Robot

How To Debug Components, State, and Events with Vue.js Devtools

When debugging a Vue application, moving between your source code and your browser can be a time-consuming process. To make debugging more efficient, you can use a browser extension like Vue.js Devtools. In this tutorial, you will set up a sample Vue application, install Vue.js DevTools in your browser, then add new features to your app while testing them with the browser extension.

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Oracle Linux 8 — glib2 security, bug fix, and — enhancement update — new behaviour and fixes — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — glib2 security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2019-3530)

🟡 Medium   ⏱ 10–30 min  Last verified: 1 March 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2019-3530 Related CVEs: CVE-2019-12450 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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Common Problems 121703

Debian 9: OOM killer terminates Java service under memory pressure

🔴 Critical   ⏱ 5–30 min  Last verified: 1 March 2021 Affected versions: Debian 9 📖 ~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 & […]

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Common Problems 117895

Ubuntu 18.04 LTS – apt update fails because dpkg lock is held

🟠 High   ⏱ 5–30 min  Last verified: 1 March 2021 Affected versions: Ubuntu 18.04 LTS Ubuntu 18.04 Ubuntu 18.04.6 📖 ~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 […]

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How to Install Cassandra on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Install Cassandra on Oracle Linux 8

Introduction How to Install Cassandra on Oracle Linux 8 on Oracle Linux 8 provides administrators with a robust, enterprise-ready workflow that integrates cleanly with systemd, SELinux, firewalld, and the modern AppStream module system. In this tutorial we will walk through every step required, from package installation to verification, so that the resulting configuration is reproducible […]

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