chris

How to Configure Automatic Security Updates on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Configure Automatic Security Updates on RHEL 8

Keeping a RHEL 8 server patched against known vulnerabilities is one of the most impactful security practices an administrator can adopt. While manual dnf update runs give you full control, many servers benefit from automatic application of security-only patches without requiring human intervention. RHEL 8 provides the dnf-automatic package, which integrates with systemd timers to […]

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How To Generate a Vue.js Single Page App With the Vue CLI — step-by-step Javascript tutorial on Progressive Robot

How To Generate a Vue.js Single Page App With the Vue CLI

Vue.js is a popular JavaScript framework for creating user interfaces, often described as a combination of React and Angular, borrowing the prop-driven development of React and the templating of Angular. In this tutorial, you will use the Vue CLI vue create command to create a new Vue application, then try it out by building some single-file components.

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FreeBSD 12 — tnftp — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — tnftp — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 18 December 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: tnftp — mget does not check for directory escapes Related CVEs: CVE-2004-1294 Upstream summary: When downloading a batch of files from an FTP server the mget command does not check […]

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How To Debug JavaScript with Google Chrome DevTools and Visual Studio Code — step-by-step Javascript tutorial on Progressive Robot

How To Debug JavaScript with Google Chrome DevTools and Visual Studio Code

Learning to debug is an essential skill for developers, allowing them to quickly and efficiently fix errors during development. But how to use debugging tools is not always obvious when working with JavaScript outside of a full-fledged Integrated Developer Environment (IDE). In this tutorial, we’ll take a look at getting started debugging JavaScript with the Google Chrome DevTools, as well as with the popular text editor Visual Studio Code.

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Common Problems 118501

Ubuntu 16.04 LTS – apt fails behind proxy with Could not resolve security.ubuntu.com – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 17 December 2019 Affected versions: Ubuntu 16.04 LTS 📖 ~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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openSUSE Tumbleweed — valgrind — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — valgrind — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory SUSE-SR:2009:002 (see also SUSE bugzilla) Related CVEs: CVE-2008-4865 CVE-2016-6131 Upstream summary: Untrusted search path vulnerability in valgrind before 3.4.0 allows local users to execute arbitrary programs via a Trojan horse .valgrindrc file […]

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How to Set Up pgBouncer Connection Pooler on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Set Up pgBouncer Connection Pooler on Debian 9

Introduction How to Set Up pgBouncer Connection Pooler on Debian 9 is a fundamental operation for any administrator maintaining a Debian 9 Stretch server. Debian 9 Stretch ships with the Linux 6.12 kernel, updated toolchains, and a fully refreshed package archive — meaning version numbers, configuration file paths, and some dependency chains differ from Debian […]

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Common Problems 113129

Windows Server 2016 – Container bind mount access denied on NTFS host path – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 17 December 2019 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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Common Problems 112898

Windows Server 2016 – Kernel crash loop after cumulative update – Fix and Prevention

🟠 High   ⏱ 5–30 min  Last verified: 17 December 2019 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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FreeBSD 12 — php56-mysqli — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — php56-mysqli — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 17 December 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: mysql — SSL Downgrade Related CVEs: CVE-2015-3152 Upstream summary: Duo Security reports: Researchers have identified a serious vulnerability in some versions of Oracle’s MySQL database product that allows an attacker […]

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