Categorygithub.com/packtpublishing/hands-on-networking-with-go-programmingchapter_4_distributed_applicationsportscandetector
# Functions
NewCappedCounter creates a counter for string values which has a maximum number of values it can contain.
Start a Listener.
# Structs
CappedCounter is a counter of how many times a key has been seen but caps the maximum number of keys it retains.
Scan is the source and target of the scan.