July 2019 - Page 45 of 69

Common Problems 118004

Ubuntu 18.04 touchpad gestures stopped working

🟡 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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FreeBSD 12 — iojs — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — iojs — 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: node, iojs, and v8 — denial of service Related CVEs: CVE-2015-5380 Upstream summary: node reports: This release of Node.js fixes a bug that triggers an out-of-band write in V8's utf-8 […]

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Common Problems 115036

RHEL 8 NFS Mount Permission Denied With SELinux Enforcing

🟡 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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Common Problems 113562

Windows Server 2012 R2 TempDB on System Volume Causing Server-Wide Disk Contention – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 19 May 2026 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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How to Install Kubernetes (kubeadm) on RHEL 10 — step-by-step RHEL 10 tutorial on Progressive Robot

How to Install Kubernetes (kubeadm) on RHEL 10

Introduction How to Install Kubernetes (kubeadm) on RHEL 10 on RHEL 10 provides administrators with a robust, enterprise-ready workflow that integrates cleanly with systemd, SELinux, firewalld, and the modern AppStream module system. In this tutorial we will walk through every step required, from package installation to verification, so that the resulting configuration is reproducible and […]

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FreeBSD 12 — php5-soap — multiple vulnerabilities (8 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — php5-soap — multiple vulnerabilities (8 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: php — multiple vulnerabilities Related CVEs: CVE-2015-6831 CVE-2015-6832 CVE-2015-6833 CVE-2015-6834 CVE-2015-6835 CVE-2015-6836 CVE-2015-6837 CVE-2015-6838 Upstream summary: PHP reports: Core: Fixed bug #70172 (Use After Free Vulnerability in unserialize()). Fixed bug […]

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How to Secure MySQL 9 on Ubuntu 26.04 — step-by-step Linux tutorial on Progressive Robot

How to Install pgAdmin 4 on Ubuntu 26.04

pgAdmin 4 is the most popular open-source administration and development tool for PostgreSQL. It provides a web-based interface for managing databases, writing queries, monitoring server activity, and managing schemas. This guide installs pgAdmin 4 in web mode on Ubuntu 26.04 LTS. Tested and valid on: Ubuntu 26.04 LTS Prerequisites Ubuntu 26.04 LTS with PostgreSQL 17 […]

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String vs StringBuffer vs StringBuilder — step-by-step Programming tutorial on Progressive Robot

String vs StringBuffer vs StringBuilder

URL: https://www.progressiverobot.com/string-vs-stringbuffer-vs-stringbuilder/ String is one of the most widely used classes in Java. StringBuffer and StringBuilder classes provide methods to manipulate strings. We will look into the difference between StringBuffer and StringBuilder. StringBuffer vs StringBuilder is a popular Java interview question. String vs StringBuffer vs StringBuilder The string is one of the most important topics […]

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Strategy Design Pattern in Java - Example Tutorial — step-by-step Programming tutorial on Progressive Robot

Strategy Design Pattern in Java – Example Tutorial

URL: https://www.progressiverobot.com/strategy-design-pattern-in-java-example-tutorial/ Strategy design pattern is one of the behavioral design pattern. Strategy pattern is used when we have multiple algorithm for a specific task and client decides the actual implementation to be used at runtime. Strategy Pattern ![strategy pattern, strategy design pattern](images/strategy-design-pattern-in-java-example-tutorial-section-1.png) Strategy pattern is also known as Policy Pattern. We define multiple algorithms […]

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FreeBSD 12 — snmptt — security advisory — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — snmptt — security advisory — 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: snmptt — malicious shell code Upstream summary: Snmptt reports: Fixed a security issue with EXEC / PREXEC / unknown_trap_exec that could allow malicious shell code to be executed. Fixed a […]

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