September 2020 - Page 42 of 66

Ubuntu 16.04 — sane-backends — multiple vulnerabilities (8 CVEs) — patch and remediation guide

• September 12, 2020
• Linux
• Comment off

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4470-1 Related CVEs: CVE-2017-6318 CVE-2020-12861 CVE-2020-12862 CVE-2020-12863 CVE-2020-12864 CVE-2020-12865 CVE-2020-12866 CVE-2020-12867 Upstream summary: Kritphong Mongkhonvanit discovered that sane-backends incorrectly handled certain packets. A remote attacker could possibly use this issue […]

Read more

How To Deploy Kafka on Docker and Kubernetes

• September 12, 2020
• Docker
• Comment off

In this tutorial, you’ll learn how to deploy Kafka using Docker Compose and deploy it on Kubernetes using Strimzi which integrates into Kubernetes and allows you to configure and maintain Kafka clusters using regular Kubernetes manifests without manual overhead.

Read more

How To Analyze Managed Redis Database Statistics Using the Elastic Stack on Ubuntu 18.04

• September 12, 2020
• Linux
• Comment off

Database monitoring is the continuous process of systematically tracking various metrics that show how the database is performing. In this tutorial, you’ll import database metrics, generated by the Redis INFO command, into Elasticsearch via Logstash. The imported data can later be analyzed and visualized in Kibana. By the end of the tutorial, you’ll have an automated system pulling in Redis statistics for later analysis.

Read more

Как добавить пространство подкачки на Ubuntu 18.04

• September 12, 2020
• Linux
• Comment off

Предыдущая версия данного обучающего руководства была написана Джастином Эллингвудом Один из наиболее простых способов предотвратить ошибки нехватки памяти в приложениях — добавить пространство подкачки на сервер. В…

Read more

GRPO in Reinforcement Learning Explained

• September 12, 2020
• AI And Machine Learning
• Comment off

Learn how Group Relative Policy Optimization improves reinforcement learning by aligning models with human preferences and enhancing reasoning.

Read more

An Introduction to HAProxy and Load Balancing Concepts

• September 12, 2020
• Tutorials
• Comment off

An introduction to basic load balancing concepts and terminology, using HAProxy, with some examples.

Read more

How to Set Up Uptime Kuma for Service Monitoring on RHEL 9

• September 12, 2020
• Linux
• Comment off

Uptime Kuma is a self-hosted monitoring tool that provides a clean web dashboard for tracking uptime across HTTP endpoints, TCP ports, DNS records, Docker containers, and more. On RHEL 9, you can run it directly with Node.js and PM2 for process management, or deploy it instantly via Docker. This tutorial walks through both approaches, firewall […]

Read more

The Difference Between Free and Open-Source Software

• September 12, 2020
• Linux
• Comment off

This article discusses the differences and the closely related histories of the free software and open-source software movements.

Read more

Debian 10: Nginx serves incomplete TLS certificate chain

• September 11, 2020
• Linux
• Comment off

🟠 High   ⏱ 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 & […]

Read more

Ubuntu 16.04 apt lock errors during updates

• September 11, 2020
• Linux
• Comment off

🟡 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 […]

Read more