Monit is a lightweight, performant, and seasoned solution that you can drop into old running servers or bake into new servers for full monitoring and proactive healing.
The powerful Cloudflare Tunnel provides secure and seamless access to servers and applications, making it a convenient alternative to VPN for any modern IT infrastructure.
The free version of FreeScout offers all the features of a powerful and flexible help desk environment and can be adapted to your requirements with commercial add-ons.
Cost management for clouds, containers, and hybrid environments tends to be neglected for reasons of complexity. The open source Koku software shows some useful approaches to this problem, although the current version still has some weaknesses.
The Internet Systems Consortium announced the end of life for the standard DHCP daemon in Fall 2022. Its designated successor Kea has been in development for years.