How To Create Nagios Plugins With Ruby On CentOS 6
After completing this tutorial, you’ll have created Nagios Plugins with Ruby on a CentOS 6 virtual server.
Ubuntu 16.04 — pound — multiple vulnerabilities (2 CVEs) — patch and remediation guide
🟢 Low ⏱ 5–15 min Last verified: 25 May 2026 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read • Source: Ubuntu Security Notice USN-4702-1 Related CVEs: CVE-2016-10711 CVE-2018-21245 Upstream summary: It was discovered that Pound incorrectly handled certain HTTP requests A remote attacker could use it to retrieve some sensitive information. (CVE-2016-10711, CVE-2018-21245) […]
How To Create Let’s Encrypt Wildcard Certificates with Certbot
In this tutorial you will create a Let’s Encrypt wildcard certificate. Wildcard certificates are SSL certificates that can secure any number of subdomains with a single certificate. You may want one of these if you need to support multiple subdomains without configuring them individually.
Masking Images in CSS Using the mask-image Property
A quick tutorial with examples on how to use image, gradient and SVG masks in CSS.
How to Set Up IIS Application Pools on Windows Server 2019
Introduction to IIS Application Pools on Windows Server 2019 Application Pools in IIS 10 on Windows Server 2019 are isolated worker process containers that host one or more web applications. Each application pool runs as a separate w3wp.exe process, meaning that a crash, memory leak, or security breach in one application cannot directly affect applications […]
¿Cómo instalar Nginx en Ubuntu 16.04?
Nginx es uno de los servidores web más populares del mundo y es responsable de alojar algunos de los sitios más grandes y de mayor tráfico en Internet. Es más fácil de usar que Apache en la mayoría de los casos y puede usarse como un servidor web o un proxy inverso. En esta…
Ubuntu 18.04 LTS initramfs Drop to BusyBox Shell
🟠 High ⏱ 5–30 min Last verified: 20 May 2026 Affected versions: 18.04 LTS 📖 ~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 & […]
IBM AIX 7.1 — CVE-2018-20732 — vulnerability — patch and remediation guide
🟡 Medium ⏱ 15–45 min Last verified: 25 May 2026 Affected versions: IBM AIX 7.1 📖 ~4 min read • Source: NVD CVE-2018-20732, IBM PSIRT advisory page CVE: CVE-2018-20732 NVD summary: SAS Web Infrastructure Platform before 9.4M6 allows remote attackers to execute arbitrary code via a Java deserialization variant. References: www.securityfocus.com/bid/106648 support.sas.com/kb/63/391.html […]
RHEL 8 kdump Fails To Capture vmcore After Kernel Panic – RHEL 8 Post 150
🟡 Medium ⏱ 5–30 min Last verified: 20 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 […]
FreeBSD 12 — fsplib — multiple vulnerabilities (2 CVEs) — 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: fsplib — multiple vulnerabilities Related CVEs: CVE-2007-3961 CVE-2007-3962 Upstream summary: A Secunia Advisory reports: fsplib can be exploited to compromise an application using the library. A boundary error exists in […]
