December 2020 - Page 57 of 69

How To Install Nginx on Ubuntu 16.04 — step-by-step Linux tutorial on Progressive Robot

How To Install Nginx on Ubuntu 16.04

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. It is more resource-friendly than Apache in most cases and can be used as a web server or a reverse proxy. In this guide,…

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Ubuntu 16.04 — ppp — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — ppp — multiple vulnerabilities (3 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-4451-1 Related CVEs: CVE-2020-15704 CVE-2020-8597 CVE-2018-11574 Upstream summary: Thomas Chauchefoin working with Trend Micro´s Zero Day Initiative, discovered that ppp incorrectly handled module loading. A local attacker could use this […]

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How to Install Woodpecker CI on RHEL 10 — step-by-step RHEL 10 tutorial on Progressive Robot

How to Install Woodpecker CI on RHEL 10

Introduction Setting up install woodpecker ci on a RHEL 10 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Install Woodpecker CI on RHEL 10, with all the commands you need, the SELinux and firewalld considerations to keep in mind, and how to validate the […]

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How To Install Jenkins on Ubuntu 16.04 — step-by-step Linux tutorial on Progressive Robot

How To Install Jenkins on Ubuntu 16.04

Jenkins is an open source automation server intended to automate repetitive technical tasks involved in the continuous integration and delivery of software. Jenkins is Java-based and can be installed from Ubuntu packages or by downloading and running its Web application ARchive…

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How To Install Java with Apt on Ubuntu 18.04 — step-by-step Linux tutorial on Progressive Robot

How To Install Java with Apt on Ubuntu 18.04

In this guide, you will install various versions of the Java Runtime Environment (JRE) and the Java Developer Kit (JDK) using `apt` . You’ll install OpenJDK as well as official packages from Oracle. You’ll then select the version you wish to use for your projects. When you’re finished, you’ll be able to use the JDK to develop software or use the Java Runtime to run software.

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How to Fix a 500 Internal Server Error on a WordPress Site — step-by-step Web Servers tutorial on Progressive Robot

How to Fix a 500 Internal Server Error on a WordPress Site

The 500 Internal Server Error code can be an ambiguous one when maintaining a WordPress installation, and issues in PHP or nginx could likely be the culprit. If you are receiving a 500 error on your WordPress installation, this tutorial will share solutions to help you to identify, solve, and test the 500 error to get your WordPress site running smoothly.

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SLES 15 — perl-DBI — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — perl-DBI — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2020:14510-1 (see also SUSE bugzilla) Related CVEs: CVE-2019-20919 CVE-2020-14392 CVE-2020-14393 CVE-2014-10401 CVE-2014-10402 Upstream summary: An issue was discovered in the DBI module before 1.643 for Perl. The hv_fetch() documentation requires checking for […]

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Lidando com a função Panics em Go — step-by-step Programming tutorial on Progressive Robot

Lidando com a função Panics em Go

Os erros que um programa encontra se enquadram em duas grandes categorias: a dos erros que o programador previu e a dos que ele não previu. A interface de error – que abordamos nos dois artigos anteriores sobre [Como lidar com…

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