Linux

How To Use Apache as a Reverse Proxy with mod_proxy on Ubuntu 16.04 — step-by-step Linux tutorial on Progressive Robot

How To Use Apache as a Reverse Proxy with mod_proxy on Ubuntu 16.04

In this tutorial, you will set up Apache as a reverse proxy using the `mod_proxy` extension to redirect incoming connections to underlying application server(s) running on the same network. There are instructions on setting up a simple web app using the Flask framework to show how Apache interacts with the real application hidden behind it, but you can also follow this tutorial using your existing application server, if you have one.

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Arch Linux — zathura-pdf-mupdf — multiple vulnerabilities (10 CVEs) — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — zathura-pdf-mupdf — multiple vulnerabilities (10 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-201805-12 Related CVEs: CVE-2018-6544 CVE-2018-6192 CVE-2018-6187 CVE-2018-5686 CVE-2018-1000051 CVE-2017-17858 CVE-2017-15587 CVE-2017-14687  +2 more Upstream summary: Type: multiple issues. Status: Fixed. Affected: 0.3.3-2. Fixed in: 0.3.3-3. Group: AVG-691. Table of contents […]

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How To Spin Up a Hadoop Cluster with cloud servers — step-by-step Linux tutorial on Progressive Robot

How To Spin Up a Hadoop Cluster with cloud servers

This tutorial will cover setting up a Hadoop cluster on the cloud provider. The Hadoop software library is an Apache framework that lets you process large data sets in a distributed way across server clusters through leveraging basic programming models….

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SLES 15 — python3-cupshelpers — vulnerability — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — python3-cupshelpers — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 16 August 2019 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE security advisory (see also SUSE bugzilla) Related CVEs: CVE-2011-4405 Upstream summary: The cupshelpers scripts in system-config-printer in Ubuntu 11.04 and 11.10, as used by the automatic printer driver download service, uses an "insecure […]

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

Oracle Linux 8 — bind — vulnerability — patch and remediation guide (ELSA-2019-1714)

🟠 High   ⏱ 15–60 min  Last verified: 16 August 2019 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2019-1714 Related CVEs: CVE-2019-6471 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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Debian 9 — libvpx — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 9

Debian 9 — libvpx — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 16 August 2019 Affected versions: Debian 9 (stretch) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2017-13194 CVE-2019-9232 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & […]

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Arch Linux — firefox-developer-edition — vulnerability — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — firefox-developer-edition — vulnerability — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-201906-19 Related CVEs: CVE-2019-11707 Upstream summary: Type: arbitrary code execution. Status: Fixed. Affected: 68.0b10-1. Fixed in: 68.0b11-1. Group: AVG-995. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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openSUSE Tumbleweed — plasma5-desktop — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — plasma5-desktop — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2016:0303-1 (see also SUSE bugzilla) Related CVEs: CVE-2014-8651 Upstream summary: The KDE Clock KCM policykit helper in kde-workspace before 4.11.14 and plasma-desktop before 5.1.1 allows local users to gain privileges via a […]

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Alpine Linux edge — xerces-c — vulnerability — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — xerces-c — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 3.2.5-r0 📖 ~4 min read  •  Source: Alpine secdb entry — xerces-c 3.2.5-r0 Related CVEs: CVE-2018-1311 Upstream summary: Alpine community repository for vedge ships xerces-c 3.2.5-r0 which addresses CVE-2018-1311. Table of contents Symptom & Impact Environment […]

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