2020 - Page 278 of 735

Common Problems 113601

Windows Server 2012 R2 — Volume Shadow Copy service provider timeout — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 13 August 2020 Affected versions: Windows Server 2012 R2 📖 ~1 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution — Primary Fix Solution — Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention & Hardening Related […]

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Understanding init in Go — step-by-step Programming tutorial on Progressive Robot

Understanding init in Go

In Go, the predefined init() function sets off a piece of code to run before any other part of your package. This code will execute as soon as the package is imported, and can be used when you need your application to initialize in a specific state. In this tutorial, you’ll learn how init() is used for the setup and initialization of specific package variables, one time computations, and the registration of a package for use with another package.

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Understanding Data Types in Go — step-by-step Programming tutorial on Progressive Robot

Understanding Data Types in Go

Data types specify the kinds of values that particular variables will store when you are writing a program. The data type also determines what operations can be performed on the data. In this article, we will go over the important data types native to the Go programming language. Understanding some basic data types will enable you to write clearer code that performs efficiently.

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Amazon Linux 2 — librepo — vulnerability — patch and remediation guide — diagnosis and fix on Amazon Linux 2

Amazon Linux 2 — librepo — vulnerability — 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 ALAS2-2020-1568 Related CVEs: CVE-2020-14352 Upstream summary: A flaw was found in librepo. A directory traversal vulnerability was found where it failed to sanitize paths in remote repository metadata. An attacker […]

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How to Take ZFS Snapshots on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Take ZFS Snapshots 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 take zfs snapshots 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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Scaling Ruby on Rails: Setting Up A Dedicated MySQL Server (part 2) — step-by-step Databases tutorial on Progressive Robot

Scaling Ruby on Rails: Setting Up A Dedicated MySQL Server (part 2)

In this second part of our Scaling-Rails the cloud provider article series, we are going to see how to create a droplet to host the database layer, for application servers to connect-to and work-with. Our aim here is to minimize the chances of letting a Single Point of Failure (SPoF) emerge as a possible culprit of downtime (or loss), by distinctively delegating one single task per server.

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How To Install Apache Kafka on Debian 10 — step-by-step Linux tutorial on Progressive Robot

How To Install Apache Kafka on Debian 10

Apache Kafka is a popular distributed message broker designed to efficiently handle large volumes of real-time data. In this tutorial, you will install and configure Apache Kafka 2.1.1 securely on a Debian 10 server, then test your setup by producing and consuming a Hello World message. You will then optionally install KafkaT to monitor Kafka and set up a Kafka multi-node cluster.

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

Oracle Linux 8 — libvncserver — vulnerability — patch and remediation guide (ELSA-2020-3385)

🟠 High   ⏱ 15–60 min  Last verified: 13 August 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-3385 Related CVEs: CVE-2017-18922 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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