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Ubuntu 18.04 — tomcat7 — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — tomcat7 — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 18 January 2021 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6908-1 Related CVEs: CVE-2019-0221 CVE-2020-9484 CVE-2021-25329 Upstream summary: It was discovered that the Tomcat SSI printenv command echoed user provided data without escaping it. An attacker could possibly use this […]

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Cómo instalar Node.js en Ubuntu 20.04 — step-by-step Linux tutorial on Progressive Robot

Cómo instalar Node.js en Ubuntu 20.04

Node.js es un tiempo de ejecución de JavaScript para programar del lado del servidor. Permite a los desarrolladores crear funcionalidades de backend escalables usando JavaScript, un lenguaje que muchos ya conocen del desarrollo web basado en…

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How To Create Django Models — step-by-step Linux tutorial on Progressive Robot

How To Create Django Models

In this tutorial, we will create the Django models that define the fields and behaviors of the Blog application data that we will be storing. These models map the data from your Django application to the database. It’s what Django uses to generate the database tables via their object relational mapping (ORM) API called “models.”

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Oracle Linux 8 — openjpeg2 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — openjpeg2 — vulnerability — patch and remediation guide (ELSA-2020-0570)

🟠 High   ⏱ 15–60 min  Last verified: 18 January 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-0570 Related CVEs: CVE-2020-8112 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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An Introduction to Service Meshes — step-by-step Kubernetes tutorial on Progressive Robot

An Introduction to Service Meshes

A service mesh is an infrastructure layer that allows you to manage communication between your application’s microservices. As more developers work with microservices, service meshes have evolved to make that work easier and more effective. In this tutorial, we will discuss how service meshes can streamline and simplify the process of working with common components in a microservice architecture.

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Oracle Linux 8 — webkit2gtk3 — security and stability fixes — required update — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — webkit2gtk3 — security and stability fixes — required update (ELSA-2021-4097)

🟡 Medium   ⏱ 10–30 min  Last verified: 17 January 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-4097 Related CVEs: CVE-2021-30858 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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openSUSE Tumbleweed — python38-distributed — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — python38-distributed — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE security advisory (see also SUSE bugzilla) Related CVEs: CVE-2021-42343 Upstream summary: An issue was discovered in the Dask distributed package before 2021.10.0 for Python. Single machine Dask clusters started with dask.distributed.LocalCluster or dask.distributed.Client […]

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Common Problems 117584

MySQL Fails to Start with InnoDB Corruption

🔴 Critical   ⏱ 5–30 min  Last verified: 17 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 […]

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FreeBSD 12 — halibut — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — halibut — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 17 January 2021 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: halibut — Segmentation fault, denial of service or possibly other unspecified impact via a crafted text document Related CVEs: CVE-2021-42612 CVE-2021-42613 CVE-2021-42614 Upstream summary: [email protected] reports: CVE-2021-42612: A use after […]

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