chris

Build a Web App With Django — step-by-step Python tutorial on Progressive Robot

Build a Web App With Django

Let’s explore Django — a powerful Python Web framework that enables rapid development, robust database management, and many built in tools that make building your app easier.

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OpenBSD 7.4 — cron — errata 019_cron — security advisory — syspatch and remediation — diagnosis and fix on OpenBSD 7.4

OpenBSD 7.4 — cron — errata 019_cron — security advisory — syspatch and remediation

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: OpenBSD 7.4 📖 ~4 min read  •  Source: OpenBSD 7.4 errata 019_cron Errata topic: Security: cron (All architectures) Issued: August 19, 2024 Related CVEs: CVE-2024-43688 Upstream summary: cron(8) and crontab(1) can crash due to incorrect /step values. CVE-2024-43688 Table of contents Symptom […]

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Como Construir uma Aplicação Node.js com o Docker — step-by-step Docker tutorial on Progressive Robot

Como Construir uma Aplicação Node.js com o Docker

A plataforma Docker permite aos desenvolvedores empacotar e executar aplicações como containers. Um container é um processo isolado que executa em um sistema operacional compartilhado, oferecendo uma alternativa mais leve às máquinas virtuais. Embora…

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Common Problems 121121

Cron Job Does Not Execute at Scheduled Time

🟡 Medium   ⏱ 5–30 min  Last verified: 9 August 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 & […]

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Common Problems 120967

Debian 10 APT Lock Contention During Package Operations

🟡 Medium   ⏱ 5–30 min  Last verified: 9 August 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 & […]

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Ubuntu 20.04 — netqmail — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — netqmail — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 9 August 2020 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4556-1 Related CVEs: CVE-2005-1513 CVE-2005-1514 CVE-2005-1515 CVE-2020-3811 CVE-2020-3812 Upstream summary: It was discovered that netqmail did not properly handle certain input. Both remote and local attackers could use this vulnerability […]

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Common Problems 113046

Windows Server 2016 VSS Snapshot Failures Due to Low Shadow Copy Storage – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 9 August 2020 Affected versions: Windows Server 2016 📖 ~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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SLES 12 — python-rsa — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on SLES 12

SLES 12 — python-rsa — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 9 August 2020 Affected versions: SLES 12 📖 ~4 min read  •  Source: SUSE advisory SUSE-CU-2023:496-1 (see also SUSE bugzilla) Related CVEs: CVE-2020-25658 CVE-2016-1494 Upstream summary: It was found that python-rsa is vulnerable to Bleichenbacher timing attacks. An attacker can use this flaw via the RSA decryption […]

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How to Set Up IBM HTTP Server on IBM AIX 7.1 — step-by-step IBM AIX 7.1 tutorial on Progressive Robot

How to Set Up IBM HTTP Server on IBM AIX 7.1

Introduction IBM AIX 7.1 is the latest release of IBM’s enterprise-grade UNIX operating system, running on IBM Power Systems hardware. Known for its reliability, security, and performance in mission-critical environments, AIX 7.1 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to set up ibm http server on ibm aix 7.1 […]

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How to Install Containerd as a Container Runtime on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Install Containerd as a Container Runtime on Debian 10

Introduction Deploying install containerd as a container runtime on debian 10 on a Debian 10 Buster machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites […]

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