Linux

Arch Linux — xorg-server — multiple vulnerabilities (11 CVEs) — patch and remediation guide

• June 19, 2020
• Linux
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-201810-15 Related CVEs: CVE-2018-14665 CVE-2017-12183 CVE-2017-12178 CVE-2017-12177 CVE-2017-12176 CVE-2017-10972 CVE-2017-10971 CVE-2020-25712  +3 more Upstream summary: Type: privilege escalation. Status: Fixed. Affected: 1.20.2-1. Fixed in: 1.20.3-1. Group: AVG-788. Table of contents […]

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Como construir um Slackbot em Python no Ubuntu 20.04

• June 19, 2020
• Linux
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O autor selecionou a Tech Education Fund para receber uma doação como parte do programa Write for DOnations. O Slack é uma plataforma de comunicação projetada para a…

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How to Add and Delete Users on Ubuntu 18.04

• June 19, 2020
• Linux
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Learning how to manage users effectively is an essential skill for any Linux system administrator. In this guide, we will discuss how to add and delete users and assign sudo privileges on an Ubuntu 18.04 server.

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Alpine Linux edge — bareos — multiple vulnerabilities (2 CVEs) — patch and remediation guide

• June 18, 2020
• Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 19.2.8-r0 📖 ~4 min read  •  Source: Alpine secdb entry — bareos 19.2.8-r0 Related CVEs: CVE-2020-4042 CVE-2020-11061 Upstream summary: Alpine community repository for vedge ships bareos 19.2.8-r0 which addresses CVE-2020-4042. Table of contents Symptom & Impact […]

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How To Install Nginx on Ubuntu 20.04 [Quickstart]

• June 18, 2020
• Linux
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Nginx is one of the most popular web servers in the world and is responsible for hosting some of the largest and highest-traffic sites on the internet. In this guide, we’ll explain how to install Nginx on your Ubuntu 20.04 server.

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Ubuntu 20.04 — fastd — vulnerability — patch and remediation guide

• June 18, 2020
• Linux
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🟢 Low   ⏱ 5–15 min  Last verified: 18 June 2020 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4610-1 Related CVEs: CVE-2020-27638 Upstream summary: It was discovered that fastd did not properly handle receive buffers under certain circumstances. A remote attacker could possibly use this issue to cause […]

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Gentoo Linux — dev-util/rebar-bin — vulnerability — patch and remediation guide

• June 18, 2020
• Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202405-30 Related CVEs: CVE-2020-13802 Upstream summary: Rebar3 is vulnerable to OS command injection via the URL parameter of a dependency specification. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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How To Install Linux, Nginx, MariaDB, PHP (LEMP stack) on Debian 10

• June 18, 2020
• Linux
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The LEMP software stack is a group of software that can be used to serve dynamic web pages and web applications. This is an acronym that describes a Linux operating system, with an Nginx web server. The backend data is stored in the MariaDB/MySQL database and the dynamic processing is handled by PHP.

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How to Configure iSCSI Target and Initiator on Debian 10

• June 18, 2020
• Linux
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Introduction This guide explains how to Configure iSCSI Target and Initiator on Debian 10 on Debian 10 Buster. Debian Buster uses systemd for service management, nftables as the underlying packet filter (with ufw or iptables front-ends still available), and AppArmor for mandatory access control. Every command is designed for a minimal Debian 10 install with […]

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How To Back Up Large Directories with Unison on Ubuntu 16.04

• June 18, 2020
• Linux
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Unison is an open-source file synchronization tool. In this tutorial, you will install and configure Unison on a pair of servers and use it backup up a directory. You will also configure Unison to use SSH as the secure communication protocol and create a cron job.

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