Open Source Linux Server Monitoring Tools
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Server Monitoring Tools for Linux
View 35 business solutionsBrowse free open source Server Monitoring tools and projects for Linux below. Use the toggles on the left to filter open source Server Monitoring tools by OS, license, language, programming language, and project status.
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Pandora Open
Open Source Monitoring System for performance and availability.
Pandora OPEN is a high-performance, 100% open-source monitoring ecosystem, born as the independent evolution of the Pandora FMS community branch after version 777. Licensed under GPLv2, it provides a modular and sovereign platform for supervising networks, servers, and applications without commercial dependencies. It features multi-platform agents, remote monitoring (SNMP, WMI, HTTP), GIS maps, and advanced visual dashboards. Entirely maintained by the community on GitHub, it ensures total transparency, technical flexibility, and absolute freedom for system administrators. -
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Nagios Open Source
Nagios Open Source network monitoring software - The Standard In ITM
Nagios network monitoring software is a powerful, enterprise-class host, server, application, and network monitoring tools. Designed to be fast, flexible, and rock-solid stable. Nagios runs on *NIX hosts and can monitor Windows, Linux/Unix/BSD, Netware, and network devices. -
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Tautulli
A Python based monitoring and tracking tool for Plex Media Server
Tautulli is a 3rd party application that you can run alongside your Plex Media Server to monitor activity and track various statistics. Most importantly, these statistics include what has been watched, who watched it, when and where they watched it, and how it was watched. The only thing missing is "why they watched it", but who am I to question your 42 plays of Frozen. All statistics are presented in a nice and clean interface with many tables and graphs, which makes it easy to brag about your server to everyone else. -
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Nvitop
An interactive NVIDIA-GPU process viewer and beyond
nvitop is an interactive NVIDIA device and process monitoring tool. It has a colorful and informative interface that continuously updates the status of the devices and processes. As a resource monitor, it includes many features and options, such as tree-view, environment variable viewing, process filtering, process metrics monitoring, etc. Beyond that, the package also ships a CUDA device selection tool nvisel for deep learning researchers. It also provides handy APIs that allow developers to write their own monitoring tools. -
Go From AI Idea to AI App FastAccess Gemini 3 and 200+ models. Build chatbots, agents, or custom models with built-in monitoring and scaling.
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Roxy-WI
Web interface for managing Haproxy, Nginx, Apache and Keepalived
For those who need a convenient interface for managing all services in one place. Roxy-WI was created for people who want to have a fault-tolerant infrastructure, but do not want to plunge deep into the details of setting up and creating a cluster based on HAProxy, NGINX, Apache, and Keepalived. Use Roxy-WI to build a high available cluster for a couple of clicks: install HAProxy, NGINX, Apache, Keepalived, and its exporters, and carry out the initial configuration for the services. Collect download statistics in one place. Choose one of the three available monitoring options or use them all. If there are any problems, you will be informed immediately. -
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sp_WhoIsActive
sp_whoisactive
sp_WhoIsActive is a comprehensive activity monitoring stored procedure that works for all versions of SQL Server from 2005 through 2022 and Azure SQL DB. sp_whoisactive is a SQL Server stored procedure for monitoring active queries and troubleshooting database performance issues. -
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Komari
A simple server monitor tool
Komari is a lightweight, self-hosted server monitoring solution designed to deliver simple and efficient infrastructure visibility with minimal resource overhead. The platform uses a lightweight agent to collect performance data from monitored nodes and presents the results through a clean web interface. Its architecture emphasizes ease of deployment and full data ownership, making it attractive for users who prefer private monitoring environments over managed services. Komari is designed to scale across servers of different sizes while maintaining low CPU and memory consumption. The dashboard provides real-time status views that allow administrators to quickly assess system health and uptime. Overall, Komari targets developers, homelab operators, and small infrastructure teams seeking a straightforward monitoring tool without the complexity of enterprise observability stacks. -
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MDServer Web
Simple Linux Panel
MDServer-Web is an open-source, web-based control panel for managing web servers and hosting environments. It supports popular web servers like Nginx and Apache, along with databases such as MySQL and Redis. The panel provides a user-friendly interface to manage websites, databases, SSL certificates, and more, making server administration accessible even to those with limited technical knowledge. -
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Ward
Server dashboard
Ward is a simple and minimalistic server monitoring tool. Ward supports an adaptive design system. Also, it supports a dark theme. It shows only principal information and can be used, if you want to see nice looking dashboard instead of looking on a bunch of numbers and graphs. Ward works nicely on all popular operating systems because it uses OSHI. -
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django-health-check
a pluggable app that runs a full check on the deployment
The primary intended use case is to monitor conditions via HTTP(S), with responses available in HTML and JSON formats. When you get back a response that includes one or more problems, you can then decide the appropriate course of action, which could include generating notifications and/or automating the replacement of a failing node with a new one. If you are monitoring health in a high-availability environment with a load balancer that returns responses from multiple nodes, please note that certain checks (e.g., disk and memory usage) will return responses specific to the node selected by the load balancer. -
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Model Context Protocol (MCP) Servers
Model Context Protocol Servers
The Model Context Protocol (MCP) is an open protocol that enables seamless integration between LLM applications and external data sources and tools. Whether you’re building an AI-powered IDE, enhancing a chat interface, or creating custom AI workflows, MCP provides a standardized way to connect LLMs with the context they need. -
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sktrap (script kiddies trap) is a tiny intrusion detection system. Installed on the monitor server, it runs tests via ssh on its clients. Cracks very visible (files,open ports). Built in reply to and very succesful in finding real-world break-ins.
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LDAP Directory Server Monitoring tool with focus on 389 DS / Red Hat / Sun / Oracle ODSEE and Open LDAP. IBM Tivoli and Novell eDirectory. Other Directory Services are also supprted.
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PyPingMon
A simple ping server monitor
PyPingMon is a server monitoring program written in Python. At the specified interval it uses a single ping command to check if a server is available. This is my first Python program. I chose this particular type of program because I wanted to write my own server monitor and this was a great way to learn how to code in Python. -
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sysmon
Sysmon prints short and uniform information about OS
This shell script prints short and uniform information about OS such as: CPU, RAM, OS name and version, kernel version, hostname, system load, current processes, network interfaces, total logged in users, hard disks, runlevel, etc. No root or any special superuser's rights are required. Runs under Linux, Android (Termux), Windows (Msys2 and Cygwin), FreeBSD, NetBSD, DragonFly BSD, OpenBSD and other Unix-like systems. -
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Emon
Remote server monitoring application
Emon is another remote server monitoring application, but this time you are able to start your monitoring in the terminal easily. You do not need to install any applications on the monitoring servers, because Emon uses SSH and /proc directory to get the monitoring data. All you need to do is just configure Emon in XML and create an SSH user. After configuration, you are ready to monitor ping, dns, ports, url, CPU, RAM, SWAP, disk, traffic and log files of multiple servers in the terminal. If something goes wrong, Emon will send email to the admin. Emon is able to send the statistics (dropouts and graphs) to the admin. -
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Nuked-klan is a web portal system dedicated for online gamers community, it provides wars management, teamates management, game server monitoring and many other features. The community is actually active, so your ideas are welcome.
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APCZ
UPS Information Gathering Tool
APCZ is a Linux BASH script that uses SSH to log into a server and parse information from apcupsd software running on it. It presents the most useful information in a graphical window with zenity. This project page is for the bundled releases, such as the Debian installer and the source archive. If you'd like to read the source code without downloading anything, or see changes that have happened since the last bundled release here, you can also find this project on my Gitlab at: https://gitlab.com/gerowen/apcz I sign some of my release files with my personal PGP key. You can find my public key at: https://marcusadams.me/keys.html If you've found this useful, donations are always appreciated. There are a few different ways you can donate: PayPal: https://paypal.me/gerowen Bitcoin (BTC): bc1q86c5j7wvf6cw78tf8x3szxy5gnxg4gj8mw4sy2 Monero (XMR): 42ho3m9tJsobZwQDsFTk92ENdWAYk2zL8Qp42m7pKmfWE7jzei7Fwrs87MMXUTCVifjZZiStt3E7c5tmYa9qNxAf3MbY7rD -
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Amentet Monitoring Service
CORBA Server Monitoring service
The Amenetet Monitoring Service monitors remote services which register with it, heart beats are used in both directions to monitor the health of remote services. Remote services maintain a lease with Amentet and renew that lease regularly. Amentet then pings back to the remote service to monitor its health. Remote Services can monitor multiple objects internally, when "pinged" by Amentet, if any of these objects has disappeared an exception is thrown back with the list of missing objects. Amentet will store events in a local Db which can be viewed using the Web interface and as events occur alerts will be raised which can be sent to SNMP Trap daemon and/or SMTP and/or SMS. The service uses Spring Security Framework for access control and can be configured to use any Authentication Authorization system supported by the Spring Security Framework. -
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Amon
Amon is a modern server monitoring platform
Amon is a monitoring tool that provides real-time insights into server performance, application logs, and system metrics. -
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Perl-based syslog watcher that matches certain login failures (SSH, FTP, POP3) and can dynamically block and email an alert, helping to monitor and manage hosting servers. NOTE: Although no recent updates, I'm still able/willing to update this code.
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CitControl
Servers Monitoring
As a network administrator, I have written this project to monitor the following activities in my servers with detailed log data, including : - Exchange server ( monitoring send and receive emails ) - web server ( my web site is UP ) - file server ( my shared files are accessible in my file server ) Also, I believe this project can be a strong reference for networking experts to create java programmes for working with MS-Mail, File and web servers. -
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Crow's nest is a web based Unix(-like) server monitoring tool using interpreted language scripts as it's tests.
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Datadog Agent
Datadog Agent Version 5
Datadog Agent is an open-source agent for collecting metrics, logs, and traces from servers, applications, and services, sending data to Datadog for analysis.
