eZ Server Monitor - Script for Monitoring Linux servers

•    PHP

eZ Server Monitor (eSM) is a script for monitoring Linux servers. It is available in Bash version and Web application. In its Web version, eSM is a PHP script which provides a web page containing information such as the operating system, the number of users connected to the server, the system load, CPU, memory RAM, available disk space, bandwidth usage, and especially the port monitoring services such as FTP, SMTP, Web, etc.

Checkmk - Best-in-class infrastructure & application monitoring

•    Python

Checkmk provides powerful monitoring of networks, servers, clouds, containers and applications. It Identifies more than 90% of devices and services via auto-discovery. Its distributed architecture supports hundreds of instances. Automate the configuration and operation with the Checkmk REST-API, Centrally manage your agents and automate agent updating with the Agent Bakery, Integrate data from a wide range of data sources and formats for metrics (JSON, XML, SNMP data, and more).

Easy Monitor

•    ASPNET

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Server Watch & Alert

Monitors servers and responds to failures. Currently supports HTTP GETs and e-mail alerts.

server-monitor-app - A PHP application to monitor the health of your servers

•    PHP

We all dream of servers that need no maintenance at all. But unfortunately in reality this is not the case. Disks can get full, processes can crash, the server can run out of memory... This commandline app keeps an eye on the health of all your servers. There are a few checks that come out of the box.

swmp - A responsive, eye-pleasing Linux server statistics dashboard.

•    CSS

A responsive, eye-pleasing Linux server statistics dashboard. The installer script has been tested with Debian, Linux Mint, Fedora, CentOS and Arch Linux. Please let me know of any issues with the installer.

sshsysmon - SSH System Monitoring -- Server monitoring over ssh for lazy people.

•    Python

SshSysMon is a system/server monitoring tool that executes all of its operations over SSH without the need for installing agents across machines. Its goal is to provide simple self-hosted monitoring and alerting for small numbers of lightweight servers without the traditional overhead of a monitoring system.