March 2020 - Page 37 of 69

How to use sink() function in R — step-by-step DevOps tutorial on Progressive Robot

How to use sink() function in R

URL: https://www.progressiverobot.com/sink-function-in-r/ You can use sink() function in R to drive the data to the external connections. Hello folks, today we will be looking into the applications of the sink() function in R. We are going to try to make connections in multiple formats such as text and [csv file types](/community/tutorials/r-read-csv-file-into-data-frame). Using the sink() function, […]

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How to Set Up Two-Factor Authentication with Google Authenticator on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Set Up Two-Factor Authentication with Google Authenticator on Debian 10

Introduction How to Set Up Two-Factor Authentication with Google Authenticator on Debian 10 is a fundamental operation for any administrator maintaining a Debian 10 Buster server. Debian 10 Buster ships with the Linux 6.12 kernel, updated toolchains, and a fully refreshed package archive — meaning version numbers, configuration file paths, and some dependency chains differ […]

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FreeBSD 12 — py37-beaker — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — py37-beaker — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: py-beaker — arbitrary code execution vulnerability Related CVEs: CVE-2013-7489 Upstream summary: matheusbrat reports: The Beaker library through 1.12.1 for Python is affected by deserialization of untrusted data, which could lead […]

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Reading the CSV file into Data frames in R — step-by-step DevOps tutorial on Progressive Robot

Reading the CSV file into Data frames in R

URL: https://www.progressiverobot.com/r-read-csv-file-into-data-frame/ With the help of specific functions offered by R, reading the CSV files into data frames is much easier. What is a CSV file? CSV is expanded as Comma, Separated, Values. In this file, the values stored are separated by a comma. This process of storing the data is much easier. Why CSV […]

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Ubuntu 16.04 — junit4 — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — junit4 — 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-4731-1 Related CVEs: CVE-2020-15250 Upstream summary: It was discovered that JUnit 4 contains a local information disclosure vulnerability. An attacker could possibly use this issue to obtain sensitive information. Table […]

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

Oracle Linux 8 — firefox — vulnerability — patch and remediation guide (ELSA-2020-3557)

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-3557 Related CVEs: CVE-2020-15664 CVE-2020-12422 CVE-2020-15653 CVE-2020-15656 CVE-2020-15654 CVE-2020-12425 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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How to Set Up a LAMP Stack on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Set Up a LAMP Stack on RHEL 8

A LAMP stack — Linux, Apache, MariaDB, and PHP — is one of the most widely deployed web server configurations in enterprise environments. RHEL 8 ships with the tools needed to install and configure each component using dnf and its module system. This tutorial walks you through installing and securing a fully functional LAMP stack […]

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How To Use GPG to Encrypt and Sign Messages — step-by-step Security tutorial on Progressive Robot

How To Use GPG to Encrypt and Sign Messages

GPG, or GNU Privacy Guard, is a public key cryptography implementation. This allows for the secure transmission of information between parties and can be used to verify that the origin of a message is genuine. In this guide, we will discuss how GPG works and how to…

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

Oracle Linux 8 — thunderbird — vulnerability — patch and remediation guide (ELSA-2019-3237)

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2019-3237 Related CVEs: CVE-2019-11758 CVE-2019-11757 CVE-2019-11759 CVE-2019-11761 CVE-2019-11762 CVE-2019-11763 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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