Scapy is a Python-based interactive packet manipulation program
Overlay networking tool with a focus on performance and simplicity
System monitoring dashboard for terminal
Firewall log analyzer
High capacity syslog data collection, filtering, and management.
Simulating bad network connections so you can build better systems
MitM pentesting opensource toolkit
Acquires external IP address from command line
KnockIt! is a port Knocking tool for MAC OSX
This tool locks down Linux and UNIX systems.