Linux

How to Configure sudo for Non-Root Users on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Configure sudo for Non-Root Users on Debian 10

Introduction Deploying configure sudo for non-root users 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 Before […]

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openSUSE Tumbleweed — mobidict — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — mobidict — 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 Related CVEs: CVE-2018-11724 Upstream summary: The mobi_pk1_decrypt function in encryption.c in Libmobi 0.3 allows remote attackers to cause a denial of service (heap-based buffer overflow) or possibly have unspecified other impact […]

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SLES 12 — libdb — vulnerability — patch and remediation guide — diagnosis and fix on SLES 12

SLES 12 — libdb — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 31 January 2020 Affected versions: SLES 12 📖 ~4 min read  •  Source: SUSE advisory SUSE-CU-2022:3135-1 (see also SUSE bugzilla) Related CVEs: CVE-2019-2708 Upstream summary: Vulnerability in the Data Store component of Oracle Berkeley DB. Supported versions that are affected are Prior to 6.138, prior to 6.2.38 […]

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Amazon Linux 2 — libexif — multiple vulnerabilities (8 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2

Amazon Linux 2 — libexif — multiple vulnerabilities (8 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2-2021-1580 Related CVEs: CVE-2020-0452 CVE-2019-9278 CVE-2020-0093 CVE-2020-0182 CVE-2020-12767 CVE-2020-13113 CVE-2020-13114 CVE-2020-13112 Upstream summary: A flaw was found in libexif. A possible out of bounds write, due ot an integer overflow, […]

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How To Install WordPress with Apache on FreeBSD 10.1 — step-by-step Linux tutorial on Progressive Robot

How To Install WordPress with Apache on FreeBSD 10.1

WordPress is a popular open source content management system (CMS) that can be used to easily set up a blog. It is a very flexible system, through its plugin and template support, that allows users to extend its functionality to meet their specific needs; WordPress can be customized to support anything from a basic blog to a fully-featured eCommerce site.

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How To Install Puppet In Standalone Mode on CentOS 7 — step-by-step Linux tutorial on Progressive Robot

How To Install Puppet In Standalone Mode on CentOS 7

A simple, beginner-friendly Puppet installation on a single CentOS 7 node. This tutorial teaches you why and how to use Puppet, introduces automatic server configuration concepts, and gets you started with a standalone Puppet installation. Get started with automatic server management, deployment, and maintenance.

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Oracle Linux 8 — squid:4 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — squid:4 — vulnerability — patch and remediation guide (ELSA-2019-2593)

🟠 High   ⏱ 15–60 min  Last verified: 31 January 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2019-2593 Related CVEs: CVE-2019-12527 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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Arch Linux — libvorbis — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — libvorbis — multiple vulnerabilities (4 CVEs) — 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-201803-12 Related CVEs: CVE-2018-5146 CVE-2017-14633 CVE-2017-14632 CVE-2017-11333 Upstream summary: Type: multiple issues. Status: Fixed. Affected: 1.3.5-1. Fixed in: 1.3.6-1. Group: AVG-367. Table of contents Symptom & Impact Environment & Reproduction […]

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How to Configure Network Interface Settings with nmcli on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Configure Network Interface Settings with nmcli on RHEL 7

How to Configure Network Interface Settings with nmcli on RHEL 7 Network configuration on RHEL 7 is managed by the NetworkManager service, and the primary command-line interface for NetworkManager is nmcli. Unlike directly editing /etc/sysconfig/network-scripts/ files — which still works but is error-prone — nmcli provides a structured, validated way to create, modify, and activate […]

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How to Configure SaltStack on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Configure SaltStack on Debian 10

Introduction Deploying configure saltstack 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 Debian 10 Buster […]

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