March 2021 - Page 50 of 69

How to Set Up Samba File Sharing on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Set Up Samba File Sharing on Oracle Linux 8

Introduction Oracle Linux 8 ships with a stable, security-hardened base that makes deploying set up samba file sharing on oracle linux 8 both straightforward and auditable. This tutorial covers the complete procedure for how to Set Up Samba File Sharing on Oracle Linux 8, including dnf module streams where applicable, systemd unit management, and the […]

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How To Use Traceroute and MTR to Diagnose Network Issues — step-by-step DevOps tutorial on Progressive Robot

How To Use Traceroute and MTR to Diagnose Network Issues

In this guide, we will discuss how to use traceroute and mtr to diagnose network issues. These tools and utilities will provide a good overview of what stage of the network is causing problems. You can tell if an issue falls within your realm of influence or whether you need to contact the owners or maintainers of alternate networks.

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Ubuntu 16.04 — file-roller — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — file-roller — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4927-1 Related CVEs: CVE-2020-36314 CVE-2020-11736 CVE-2019-16680 CVE-2016-7162 https://launchpad.net/bugs/1171236 Upstream summary: It was discovered that File Roller incorrectly handled symlinks. An attacker could possibly use this issue to expose sensitive information. […]

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How To Style HTML Elements with Borders, Shadows, and Outlines in CSS — step-by-step DevOps tutorial on Progressive Robot

How To Style HTML Elements with Borders, Shadows, and Outlines in CSS

Working with shadows, borders, and outlines is a key component of web development, and can provide visual definition around HTML elements and text items. In this tutorial, you will create a legality notice for a fictional space tourism company. Throughout the demo you will create visually rich containers by using five main CSS properties: border, border-radius, box-shadow, text-shadow, and outline.

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How to Set Up IPv6 on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Set Up IPv6 on FreeBSD 12

Introduction FreeBSD 12 is a UNIX-derived operating system renowned for its network stack performance, ZFS integration, and Jail isolation primitives. Setting up set up ipv6 on freebsd 12 on FreeBSD 12 follows the rc.conf/service(8) paradigm rather than systemd, which means enabling a service and configuring its startup options are done differently from any Linux distribution. […]

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Ubuntu 16.04 — libimage-exiftool-perl — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — libimage-exiftool-perl — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4987-2 Related CVEs: CVE-2021-22204 Upstream summary: USN-4987-1 fixed a vulnerability in ExifTool. This update provides the corresponding update for Ubuntu 16.04 ESM. Original advisory details: It was discovered that ExifTool […]

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Ubuntu 20.04にNode.jsをインストールする方法 — step-by-step Linux tutorial on Progressive Robot

Ubuntu 20.04にNode.jsをインストールする方法

このガイドでは、Ubuntu 20.04サーバーにNode.jsをインストールする3種類の方法を示します。 ひとつは、Ubuntuのデフォルトのソフトウェアリポジトリからaptを使用してnodejsパッケージをインストールする方法、次に、代替PPAソフトウェアリポジトリからaptを使用して指定したバージョンのnodejsパッケージをインストールする方法、最後に、Nodeバージョンマネージャーをインストールし、これを使って複数のバージョンのnodejsをインストール・管理する方法について説明します。

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