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Installing Nagios Core on Ubuntu: Monitoring Rock-Solid Infrastructure with NRPE and Custom Plugins

By admin September 9, 2026

Don't overlook Nagios Core if you need absolute stability. A detailed guide on installing Nagios on Ubuntu, configuring NRPE, and writing high-quality custom monitoring plugins.

Monitoring

Advanced PromQL: Don’t Let “Average Numbers” Mislead You

By admin September 9, 2026

Don't be fooled by averages. Learn how to use Histogram Quantiles and Subqueries in PromQL to measure P99 latency and optimize your monitoring system.

Centos

How to Install Zabbix 7 on CentOS Stream 9: Real-World Infrastructure Monitoring

By admin September 8, 2026

A detailed guide on installing Zabbix 7 on CentOS Stream 9. Optimize IT infrastructure monitoring with MariaDB, Nginx, SELinux configuration, and automatic alerts.

Monitoring

Docker Swarm Monitoring: ‘Diagnosing’ Replicas and Rolling Updates with Prometheus & cAdvisor

By admin September 6, 2026

A guide on setting up Prometheus and cAdvisor for Docker Swarm monitoring. Track replicas, node health, and rolling update status to ensure smooth operations.

Monitoring

Installing Pyrra: Managing SLOs and Alerts the Google SRE Way

By admin September 2, 2026

Learn how to install Pyrra for professional SLO management, automate Error Budget calculations, and set up SRE-standard Burn Rate Alerts.

Monitoring

Building a Custom Prometheus Exporter with Python: Comprehensive Internal API Monitoring

By admin August 31, 2026

Is your system down even though the dashboard is green? Learn how to build a Custom Prometheus Exporter with Python to professionally monitor internal APIs and business logic.

Monitoring

Kapacitor & InfluxDB: Professional Automation of Alerts and Time-series Data Processing

By admin August 28, 2026

Don't wait for your server to crash. Learn how to set up Kapacitor with InfluxDB to build automated CPU, RAM, and IoT alerting systems via Telegram/Slack.

Virtualization

Mastering Proxmox VE Notification Framework: Get Telegram & Email Alerts in a Flash

By admin August 28, 2026

A guide to configuring the Proxmox VE Notification Framework for Telegram and Email alerts. Monitor ZFS errors, backups, and VM issues instantly.

Docker

Docker Events API: Real-time Container Monitoring Instead of ‘Praying’ Every Night

By admin August 22, 2026

Container crashed without you knowing? Discover how to use the Docker Events API to build a real-time monitoring system with Telegram alerts in just a few lines of Python.

Monitoring

Mastering OpenAI/Claude Costs and Rate Limits with Prometheus & Grafana

By admin August 18, 2026

Don't let API bills surprise you. Here's a detailed guide on using Prometheus and Grafana to monitor OpenAI/Claude rate limits and costs in real-time.