May 2020 - Page 17 of 69

How to Install and Configure Varnish Cache on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Install and Configure Varnish Cache on Debian 10

Introduction Deploying install and configure varnish cache 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 Ensure […]

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Common Problems 112408

Windows Server 2019 — Servicing Stack Update Missing Blocks Monthly LCU Install — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 18 May 2026 Affected versions: Windows Server 2019 📖 ~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 — openhab-addons — security advisory — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — openhab-addons — security advisory — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: OpenHAB CometVisu addon — Multiple vulnerabilities Upstream summary: OpenHAB reports: This patch release addresses the following security advisories: SSRF/XSS (CometVisu) – GHSA-v7gr-mqpj-wwh3 Sensitive information disclosure (CometVisu) – GHSA-3g4c-hjhr-73rj RCE through […]

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How To Process Images in Node.js with Sharp — step-by-step Javascript tutorial on Progressive Robot

How To Process Images in Node.js with Sharp

Digital image processing is a method of using a computer to analyze and manipulate images. This tutorial covers using the Node.js library sharp to read an image and extract its metadata, resize, change and compress its format, crop, grayscale, rotate, and blur the image. As well as compositing two images into one, and adding text on an image.

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FreeBSD 12 — mkvtoolnix — security advisory — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — mkvtoolnix — security advisory — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: mkvtoolnix — code execution via specially crafted files Upstream summary: Moritz Bunkus reports: most of the bugs fixed on 2016-09-06 and 2016-09-07 for issue #1780 are potentially exploitable. The scenario […]

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How to Mount SMB/CIFS Shares on RHEL 10 — step-by-step RHEL 10 tutorial on Progressive Robot

How to Mount SMB/CIFS Shares on RHEL 10

Introduction How to Mount SMB/CIFS Shares on RHEL 10 on RHEL 10 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 and […]

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FreeBSD 12 — openjdk7-jre — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — openjdk7-jre — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: java — multiple vulnerabilities Related CVEs: CVE-2015-4734 CVE-2015-4803 CVE-2015-4805 CVE-2015-4806 CVE-2015-4810 CVE-2015-4835 CVE-2015-4840 CVE-2015-4842  +12 more Upstream summary: Oracle reports: This Critical Patch Update contains 25 new security fixes for […]

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Como Instalar o Servidor Web Apache no Ubuntu 18.04 — step-by-step Linux tutorial on Progressive Robot

Como Instalar o Servidor Web Apache no Ubuntu 18.04

O servidor HTTP Apache é o servidor Web mais amplamente usado no mundo. Ele fornece muitas características poderosas, incluindo módulos carregáveis dinamicamente, suporte robusto de mídia e uma integração extensa com outros softwares populares. Neste guia, vamos explicar como…

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