August 2020 - Page 42 of 69

How to Install PHP 7.4 with PHP-FPM on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Install PHP 7.4 with PHP-FPM on Debian 10

Introduction How to Install PHP 7.4 with PHP-FPM 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 from Debian […]

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How To Configure vsftpd to Use SSL/TLS on a CentOS VPS — step-by-step Linux tutorial on Progressive Robot

How To Configure vsftpd to Use SSL/TLS on a CentOS VPS

FTP was a popular file sharing mechanism for network connected computers in the past. However, its usage has fallen out of favor due to inherent security flaws. In this guide, we will discuss how to use SSL/TLS to improve the security of your FTP sessions if you must continue to use this protocol.

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How To Build Progressive Web Apps with Angular — step-by-step Javascript tutorial on Progressive Robot

How To Build Progressive Web Apps with Angular

Progressive web apps are web applications built with technologies that make them behave like native apps. A benefit of progressive web apps is the ability to work smoothly when network coverage is unreliable. In this article, you’ll build a progressive web app with Angular and deploy it with Firebase.

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Debian 10 — libopenmpt — vulnerability — patch and remediation guide — diagnosis and fix on Debian 10

Debian 10 — libopenmpt — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Debian 10 (buster) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-14380 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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Connection Pooling in Java — step-by-step Programming tutorial on Progressive Robot

Connection Pooling in Java

Connection pooling means a pool of Connection Objects. Connection pooling is based on an object pool design pattern. Object pooling design pattern is used when the cost (time & resources like CPU, Network, and IO) of creating new objects is higher. As per the Object pooling design pattern, the application creates an object in advance […]

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How to Manage Services with systemd on RHEL 10 — step-by-step RHEL 10 tutorial on Progressive Robot

How to Manage Services with systemd on RHEL 10

Introduction Setting up manage services with systemd on a RHEL 10 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Manage Services with systemd on RHEL 10, with all the commands you need, the SELinux and firewalld considerations to keep in mind, and how to […]

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Common Problems 121194

Debian 10: High CPU load caused by runaway cron task

🟡 Medium   ⏱ 5–30 min  Last verified: 20 May 2026 Affected versions: Debian 10 📖 ~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 Errors & […]

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Common Problems 118928

Could Not Get Lock /var/lib/dpkg/lock on Ubuntu 14.04

🟡 Medium   ⏱ 5–30 min  Last verified: 19 May 2026 📖 ~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 Errors & Cross-Refs References & Further […]

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