Scapy is a Python-based interactive packet manipulation program
SQL operating system instrumentation and monitoring framework
Nagios network monitoring software is enterprise server monitoring
FlowViewer is a web-based netflow data analysis tool.
Pinger alert
Advanced command-line ping tool
Active Directory browser and workstation diagnostics
The Serverless Framework's new infrastructure provisioning technology
Zenoss - Intelligent IT Operations Management
Easy TCP Network Tools. Can working as TCP server and/or TCP client
Snare Enterprise: bit.ly/Snare-Trial
A modern graphical SSH client
Manage network users' information with Active Directory
a set of bash scripts that make life easier for Ubuntu users/admins
Track your ARP/MAC table changes and so much more
Assists ICT staff to manage PCs/Servers and verify their health
Netflow visualisation and investigation tool
bash programmable completion for conntrack-tools (netfilter.org)
Nagios 4.1.1 with PNP4Nagios 0.6.25 and NagiosQL 3.20
Infrastructure Monitoring, Log File Analysis & Visualization