Network monitoring is crucial for maintaining system security and performance, and this article introduces six free, open‑source tools—Zabbix, Prometheus, Cacti, Grafana, OpenNMS, and Nagios—detailing their core capabilities and why they are valuable for operations teams.
This article introduces six free open‑source network monitoring solutions—Zabbix, Prometheus, Cacti, Grafana, OpenNMS, and Nagios—explaining their key features, how they collect and visualize metrics, and why they are valuable for maintaining system stability and security.
This article introduces six free, open‑source network monitoring solutions—Zabbix, Prometheus, Cacti, Grafana, OpenNMS, and Nagios—detailing their key features and how they help operations teams ensure system stability and quickly resolve issues.
This tutorial walks through preparing a CentOS 7 virtual machine, configuring networking, setting up required packages, compiling and installing Nagios Core, adding the Nagios user and Apache integration, configuring the firewall, and finally installing and enabling Nagios plugins for full monitoring capabilities.
This article reviews the eight most popular network monitoring solutions in China for 2025, detailing each tool's key features, suitable scenarios, and advantages, and concludes with practical recommendations for choosing the right solution based on monitoring needs and budget constraints.
This article reviews several popular open‑source monitoring tools—Cacti, Nagios, Zabbix, Prometheus, Grafana, Nightingale, and Open‑Falcon—detailing their core features, data collection methods, visualization capabilities, and typical use cases for IT operations.
This article introduces five popular open‑source network monitoring solutions—Cacti, Nagios Core, Icinga 2, Zabbix, and Prometheus—explaining their main features, data collection methods, platform support, and typical use cases to help administrators choose the right tool for reliable system oversight.
This article introduces five popular open‑source network monitoring solutions—Cacti, Nagios Core, Icinga 2, Zabbix, and Prometheus—explaining their main features, supported platforms, data collection methods, and where to obtain them, helping administrators choose the right tool for reliable system oversight.
This article traces the development of open‑source monitoring solutions from early tools like Nagios and Cacti through modern platforms such as Prometheus and Nightingale, comparing their strengths, weaknesses, and typical use cases while also looking ahead to emerging observability trends in cloud‑native environments.
This article reviews five popular open‑source monitoring solutions—Cacti, Nagios, Zabbix, Prometheus, and Grafana—highlighting their core architectures, key features, strengths, and limitations to help IT professionals select the most suitable tool for their environment.
This article reviews and contrasts five popular open‑source monitoring solutions—Cacti, Nagios, Zabbix, Prometheus, and Grafana—highlighting their architectures, key features, strengths, and typical use‑cases to help IT teams select the right tool for their environment.
This article compares five widely used operations monitoring tools—Cacti, Nagios, Zabbix, Prometheus, and Grafana—detailing their architectures, key features, strengths, and limitations to help you select the most suitable solution for comprehensive IT service availability.
This article introduces eleven robust server monitoring solutions, explaining their key features and benefits to help IT professionals ensure server availability, performance, and rapid issue resolution across diverse environments.
This article explains why traditional server and service monitoring (e.g., Zabbix) may miss business outages, then walks through setting up Nagios on Debian to monitor web page URLs, API health checks, and related services, including configuration files, plugins, and a desktop alert tool, Nagstamon.
This article reviews common open‑source monitoring combinations, compares their strengths and weaknesses, and shares practical guidance on selecting collectors, storage back‑ends, and visualization tools such as Telegraf, InfluxDB, Prometheus, Grafana, and alertmanager for large‑scale data platform operations.
The article introduces common open‑source monitoring tools such as Zabbix and Nagios, explains why distributed systems need proactive health checks, compares features, and provides a detailed Zabbix monitoring workflow including data collection, storage, visualization, alerting, and specific metrics for servers, networks, JVM and MySQL.
The article explains how to automate the tedious process of adding multiple hosts to Cacti and Nagios by using shell‑wrapped PHP scripts and custom templates, provides download links, and shares practical tips to avoid common installation pitfalls.
This comprehensive tutorial walks you through installing and configuring Nagios on CentOS 6.8, covering system prerequisites, daemon, plugins, NRPE, web interface setup, client-side installations, configuration file management, and troubleshooting tips to achieve effective host and service monitoring.
This guide walks through setting up Nagios on CentOS 6.8 to send email notifications via SMTP, covering template, service, command, and contact configurations, testing the mail command, and summarizing Nagios' alert timing parameters.
This guide walks through installing pnp4nagios on CentOS 6.8, configuring required packages, compiling the software, testing the installation, understanding its bulk mode with npcd, and adjusting Nagios and pnp4nagios settings to enable dynamic performance graphs.
This article translates and expands a comparative analysis of Prometheus against Graphite, InfluxDB, OpenTSDB, Nagios, and Sensu, covering their applicability, data models, storage mechanisms, architecture, and strengths to help readers choose the most suitable time‑series database for monitoring needs.
This article details a telecom operator's journey to cloud‑native operations, outlining the challenges of scaling monitoring, the design of a five‑level visual monitoring framework, the integration of open‑source tools like Ganglia, Nagios and JVMTI, and concrete implementation steps and results.
This guide explains the remote monitoring principle of Nagios using NRPE, then walks through installing Nagios‑plugins and NRPE on both the monitored host and the Nagios server, configuring host and service definitions, and verifying communication through the web interface.
This article introduces three popular open‑source monitoring solutions—Nagios, Graphite, and Icinga—detailing their core features, architecture components, and typical use cases for server, network, and application performance monitoring.
The article details how Qunar’s operations team designed and implemented the Watcher monitoring platform—based on Graphite, Grafana, and Nagios—to achieve high availability, horizontal scalability, and rich visualization for over six million system metrics and two million business metrics.
Nagios is an enterprise‑grade, open‑source monitoring framework that tracks server, service, and network metrics such as CPU usage, memory, disk space, and network throughput, alerts via email or SMS on anomalies, and consists of a core, plugins, and extensions, though it lacks built‑in reporting and has configuration limitations.
This guide walks you through registering a WeChat public account, setting up a Node.js simulator for login and friend retrieval, installing Node.js, configuring Nagios commands and contacts, and finally enabling WeChat notifications for monitoring alerts.
