2020 - Page 319 of 735

Common Problems 118510

Ubuntu 16.04 shutdown hangs for several minutes

🟡 Medium   ⏱ 5–30 min  Last verified: 23 July 2020 📖 ~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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Common Problems 117460

Ubuntu 20.04 LTS LVM Volume Does Not Extend

🟡 Medium   ⏱ 5–30 min  Last verified: 23 July 2020 📖 ~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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Understanding Systemd Units and Unit Files — step-by-step Linux tutorial on Progressive Robot

Understanding Systemd Units and Unit Files

Increasingly, Linux distributions are adopting or planning to adopt the systemd init system. This powerful suite of software can manage many aspects of your server, from services to mounted devices and system states. In systemd, a unit refers to any resource that the…

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How to Configure Network Bonding on SLES 15 — step-by-step SUSE Linux Enterprise 15 tutorial on Progressive Robot

How to Configure Network Bonding on SLES 15

Introduction This tutorial covers How to Configure Network Bonding on SLES 15 on SLES 15. SLES 15 (SUSE Linux Enterprise Server 16) is SUSE’s enterprise-grade Linux distribution. It uses the zypper package manager, AppArmor for mandatory access control, and systemctl for service management. Prerequisites Ensure your SLES 15 system is up to date: zypper refresh […]

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openSUSE Tumbleweed — nethack — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — nethack — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2025:14898-1 (see also SUSE bugzilla) Related CVEs: CVE-2020-5253 Upstream summary: NetHack before version 3.6.0 allowed malicious use of escaping of characters in the configuration file (usually .nethackrc) which could be exploited. This […]

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ReLu Function in Python — step-by-step Python tutorial on Progressive Robot

ReLu Function in Python

URL: https://www.progressiverobot.com/relu-function-in-python/ Relu or Rectified Linear Activation Function is the most common choice of activation function in the world of [deep learning](/community/tutorials/introduction-to-machine-learning). Relu provides state of the art results and is computationally very efficient at the same time. The basic concept of Relu activation function is as follows: Return 0 if the input is negative otherwise […]

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Maven Build Lifecycle, Phases, and Goals — step-by-step DevOps tutorial on Progressive Robot

Maven Build Lifecycle, Phases, and Goals

URL: https://www.progressiverobot.com/maven-build-lifecycle-phases-goals/ What is Maven Build Lifecycle? When we build a Maven project, it executes a set of clearly defined tasks based on the project pom.xml configuration and the command-line options. This standard set of tasks creates the maven build lifecycle. The benefit of a clearly defined lifestyle is that we have to remember only […]

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Debian 10 — gst-libav1.0 — vulnerability — patch and remediation guide — diagnosis and fix on Debian 10

Debian 10 — gst-libav1.0 — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 23 July 2020 Affected versions: Debian 10 (buster) 📖 ~4 min read  •  Source: Debian Security Tracker 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 […]

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