In this tutorial, we will cover the installation of Nagios 4, a very popular open source monitoring system, on Ubuntu 14.04. We will cover some basic configuration, so you will be able to monitor host resources via the web interface.
🟢 Low ⏱ 5–15 min Last verified: 22 September 2021 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read • Source: Ubuntu Security Notice USN-6163-1 Related CVEs: CVE-2021-20307 CVE-2021-33293 Upstream summary: It was discovered that pano13 did not properly validate the prefix provided for PTcrop's output. An attacker could use this issue to cause […]
Learn how to set up and configure Consul Key-Value (KV) store using Docker. This step-by-step guide covers Docker installation, Consul container deployment, and KV operations for efficient distributed configuration management.
🟠 High ⏱ 15–60 min Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read • Source: Arch ASA ASA-201712-10 Related CVEs: CVE-2017-8823 CVE-2017-8822 CVE-2017-8820 CVE-2017-8819 CVE-2021-34550 CVE-2021-34549 CVE-2021-34548 CVE-2017-0377 +2 more Upstream summary: Type: multiple issues. Status: Fixed. Affected: 0.3.1.8-1. Fixed in: 0.3.1.9-1. Group: AVG-539. Table of contents […]
🟠 High ⏱ 15–60 min Last verified: 22 September 2021 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read • Source: Ubuntu Security Notice USN-5014-1 Related CVEs: CVE-2021-33909 CVE-2021-3609 https://launchpad.net/bugs/1924611 CVE-2021-29154 CVE-2021-3492 CVE-2021-3493 CVE-2020-27170 CVE-2020-27171 +12 more Upstream summary: It was discovered that the virtual file system implementation in the Linux kernel contained an […]
Learn how to use the Angular 4+ Meta service, to get, add, update, and remove various meta tags on a route.
Explore how RAG (Retrieval-Augmented Generation) and knowledge graphs tackle AI hallucinations. Understand their role in grounding AI responses with accurate, real-world information for more reliable outputs.
🟡 Medium ⏱ 10–30 min Last verified: 21 September 2021 Affected versions: Oracle Linux 8 📖 ~4 min read • Source: ELSA advisory ELSA-2023-2806 Related CVEs: CVE-2022-46344 CVE-2022-3551 CVE-2022-46342 CVE-2023-0494 CVE-2022-46341 CVE-2022-46343 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read • Source: AlmaLinux ALSA ALEA-2021:1861 Upstream summary: For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]
Introduction How to Configure Network Interface Aggregation on FreeBSD 13 is a core administration task for any FreeBSD 13 server operator. FreeBSD 13 ships with the 15.0-RELEASE kernel, ZFS as the default root filesystem, Capsicum capability sandboxing improvements, and an updated ports tree. Unlike Linux distributions, FreeBSD uses rc(8) for service management, pf for packet […]
