NetBox - NetBox is an open source web application designed to help manage and document computer networks. NetBox was developed specifically to address the needs of network and infrastructure engineers.
RackTables - Racktables is a nifty and robust solution for datacenter and server room asset management.
phpIPAM - phpipam is an open-source web IP address management application (IPAM).
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.
Storagepipe - Automating archiving older emails
vSphere Hypervisor - Get a free vSphere Hypervisor by VMware to consolidate your applications and virtualize your servers. Learn how to optimize your server’s performance