OpenNMS might be a bit more popular than Device42. We know about 1 link to it since March 2021 and only 1 link to Device42. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
This, essentially, is how you will find every single environment, in my experience. The first thing I would do is use something like device42.com to discover my environment. They have a free trial, and the license cost for 1-100 servers is only $1500. That (or any similar tool) will give you a baseline of what you're working with in a centralized database. Using that, you can get a much better idea of what's going... Source: 12 months ago
Up until recently, I was at OpenNMS, an open source network monitoring project that was Doing It Right™ for a very long time, even with a commercial component. However, since being acquired, it has kind of lost its direction as it fumbled around trying to work on a new product, and I've watched it slowly sink into obscurity as it has failed to engage meaningfully with its community. It's still a great tool with a... - Source: dev.to / 22 days ago
DCImanager - DCImanager is a platform for managing physical equipment. Connect any physical equipment to a single platform. Use the platform to manage your servers, switches, PDU as well as physical and virtual networks.
The Dude - MikroTik is a Latvian company which was founded in 1996 to develop routers and wireless ISP systems. MikroTik now provides hardware and software for Internet connectivity in most of the countries around the world.
ManageEngine OpManager - Monitors routers, switches, firewalls, load-balancers, wireless LAN controllers, servers, VMs, printers, storage devices, and everything that has an IP and is connected to the network.
Pandora FMS - Pandora FMS: Opensource monitoring software
Cisco ACI - Application Centric Infrastructure (ACI) simplifies, optimizes, and accelerates the application deployment lifecycle in next-generation data centers and clouds.
cStatus - Monitor and scan a network.