Open Source Unix Shell Server Monitoring Tools

Pandora FMS is an enterprise-ready monitoring solution that provides unparalleled flexibility for IT to address both immediate and unforeseen operational issues, including infrastructure and IT processes. It uniquely enables business and IT to adapt to changing needs through a flexible and rapid approach to IT and business deployment. Pandora FMS consolidates all the needs of modern monitoring (ITOM, APM, BAM) and provides status and performance metrics from different operating systems, cloud, virtual infrastructure (VMware, Hyper-V, XEN), Docker containers, applications, storage and hardware devices such as firewalls, proxies, databases, web servers or routers. It's highly scalable (up to 2000 nodes with one single server), 100% web and with multi-tenant capabilities. It has a very flexible ACL system and several different graphical reports and user-defined control screens.

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.

LiMon (Linux Monitor) is a free/open/libre multiplataform real time Linux monitor written in C/C++, and other languages. Monitor of server's relevant aspects, such as services, temperature, CPU, memory and disk usage, etc.

rejoin your friends on lan and internet games with one click or join lan games from the internet. see server and player info

rsmonitor is a simple shell-script based server monitoring solution for unix-like servers. It uses ssh to connect to the monitored servers, and requires only standard tools to check the server status. Output is written to html and text files.

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.