Пакет conntrack-tools: Информация

conntrack-tools  is  used to search, list, inspect and maintain the netfilter
connection tracking subsystem of the Linux kernel.
Using conntrack , you can dump a list of all (or a filtered selection  of)
currently  tracked  connections, delete connections from the state table,
and even add new ones.
In  addition,  you  can  also  monitor connection tracking events, e.g.
show an event message (one line) per newly established connection.