How To Create Nagios Plugins With PHP On Ubuntu 12.10
After completing this tutorial, you’ll have created Nagios Plugins with PHP on an Ubuntu 12.10 virtual server.
How To Analyze Managed PostgreSQL Database Statistics Using the Elastic Stack on Ubuntu 18.04
Database monitoring is the continuous process of systematically tracking various metrics that show how the database is performing. By observing the performance data, you can gain valuable insights and identify possible bottlenecks, as well as find additional ways of improving database performance. In this tutorial, you’ll import database metrics, generated by the PostgreSQL statistics collector, into Elasticsearch via Logstash.
openSUSE Tumbleweed — libwmf — multiple vulnerabilities (5 CVEs) — patch and remediation guide
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read • Source: SUSE advisory SUSE-SR:2006:019 (see also SUSE bugzilla) Related CVEs: CVE-2006-3376 CVE-2015-0848 CVE-2015-4588 CVE-2015-4695 CVE-2015-4696 Upstream summary: Integer overflow in player.c in libwmf 0.2.8.4, as used in multiple products including (1) wv, (2) abiword, (3) […]
Oracle Linux 8 — http-parser — vulnerability — patch and remediation guide (ELSA-2020-0708)
🟠 High ⏱ 15–60 min Last verified: 14 November 2019 Affected versions: Oracle Linux 8 📖 ~4 min read • Source: ELSA advisory ELSA-2020-0708 Related CVEs: CVE-2019-15605 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]
Ubuntu 16.04 LTS – systemd service enters restart loop – Fix & Prevention
🟠 High ⏱ 5–30 min Last verified: 13 November 2019 Affected versions: Ubuntu 16.04 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 […]
Installing phpMyAdmin on Ajenti V
phpMyAdmin is a free, web-facing control panel that can access and edit MySQL databases hosted on your server. It integrates with all existing and future databases on your Ajenti server automatically.
Amazon Linux 2 — evolution-ews — vulnerability — patch and remediation guide
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: Amazon Linux 2 📖 ~4 min read • Source: Amazon Linux advisory ALAS2-2020-1475 Related CVEs: CVE-2019-3890 Upstream summary: It was discovered evolution-ews before 3.31.3 does not check the validity of SSL certificates. An attacker could abuse this flaw to get confidential information […]
How to Configure Podman Compose on RHEL 7
How to Configure Podman Compose on RHEL 7 Podman Compose is a Python script that implements the Docker Compose file specification against the Podman container engine. It allows you to use your existing docker-compose.yml files with Podman, either with the rootless model for increased security or as root on systems where Docker is not installed. […]
How To Secure Apache with Let’s Encrypt on Ubuntu 18.04
Let’s Encrypt is a Certificate Authority (CA) that provides an easy way to obtain and install free TLS/SSL certificates, thereby enabling encrypted HTTPS on web servers. In this tutorial, you will use Certbot to obtain a free SSL certificate for Apache on Ubuntu 18.04 and set up your certificate to renew automatically.
How to Install Elasticsearch on RHEL 7
How to Install Elasticsearch on RHEL 7 Elasticsearch is a distributed, RESTful search and analytics engine built on Apache Lucene. It is widely used for full-text search, log aggregation, and real-time data analysis. This guide walks you through installing and configuring Elasticsearch on Red Hat Enterprise Linux 7, including repository setup, basic cluster configuration, JVM […]
