Network

Some of the tools for network management

Big Picture /Discovery

• OpenNMS http://www.opennms.org/
• Netdisco https://en.wikipedia.org/wiki/Netdisco http://netdisco.org/
• TclMon http://tclmon.sourceforge.net/screenshots.php https://en.wikipedia.org/wiki/TclMon

Network Details

• https://en.wikipedia.org/wiki/Wireshark
• https://lifehacker.com/how-to-tap-your-network-and-see-everything-that-happens-1649292940

Monitoring, Reporting, Automation

wp:Comparison of network monitoring systems

• monit http://mmonit.com/monit/ I've found monit to be very easy to use and extremely useful as a tool to monitor small things and tiny details as well as general services.
• Nagios https://en.wikipedia.org/wiki/Nagios

Distros

Infrastructure in a box

• wp:Zentyal