You have to know the 10 server monitoring tool
background
Monitoring Web server or Web host's health and normal operation is very important. If you want to make sure your site is available in your control, then you need to collect a variety of server performance data for analysis and adjustment. The following are the most commonly used server monitoring components of the solution collected.
Of Co-Pilot the Performance, ( https://pcp.io/ ) referred to as PCP, it is a system performance analysis framework. It collects and analyzes various performance indicators from multiple hosts. We can observe the trend indicators strike through it, to help you quickly identify anomalies where points. It provides API, to follow from which to develop custom monitoring and reporting solution.
Anturis ( https://anturis.com/ ) is a cloud-based SaaS platform, to monitor windows and linux servers, websites and IT infrastructure. Through a comprehensive list of program monitoring solutions, allowing administrators to quickly understand the overall host or server bottlenecks and risks.
SeaLion is a Linux server monitoring tool based on cloud. Also monitor all server metrics through a unified dashboard. It takes only minutes to set up, it has a real-time alarm function, so that if a problem occurs, you can quickly receive notifications and daily summaries and other data.
Icinga is a free open source monitoring system that can check the availability of server resources. It will record server problems and notifies you when downtime.
Munin is a network and system monitoring tools to help you analyze server resource trends. It is designed to be a plug and play solution. Without much extra work to collect critical information after installation. Commonly known as "watchdog"
Monit是一个用于管理和监控Unix系统的开源工具。Monit可以进行自动维护和维修。如果出现错误情况，Monit可以自动触发保护行为，例如;如果sendmail（linux的邮件代理程序）没有运行，Monit可以自动重新启动sendmail，或者如果apache使用了太多的资源(例如，如果正在进行DoS攻击)，Monit可以停止或重启apache并向您发送报警。Monit还可以监视进程特征，比如;进程使用的内存。
Nagios(https://www.nagios.org/)是一个功能强大的开源服务器/网络监控解决方案，可为服务器，交换机，应用程序和服务提供完整的监控和警报。它有一个插件API，因此您可以扩展其开箱即用的功能以实现更多自定义功能。
brainypdm(https://www.brainypdm.org/)是一个基于Web的数据管理和监控工具，可从Nagios收集性能数据。
SysUsage(http://sysusage.darold.net/)使用Sar（Sysstat）和其他系统命令监视您的系统活动。它有一个阈值通知系统，可以在服务器的功能接近极限时提醒您。
Zabbix(http://www.zabbix.com/)是一种非常常用的开源性能监控解决方案。它可以监控服务器，Web应用程序，数据库，网络设备等性能和可用性。
