tldr/pages/linux/conntrack.md

conntrack

Interact with the Netfilter connection tracking system. Search, list, inspect, modify, and delete connection flows. More information: https://manned.org/conntrack.

• List all currently tracked connections:

conntrack --dump

• Display a real-time event log of connection changes:

conntrack --event

• Display a real-time event log of connection changes and associated timestamps:

conntrack --event -o timestamp

• Display a real-time event log of connection changes for a specific IP address:

conntrack --event --orig-src {{ip_address}}

• Delete all flows for a specific source IP address:

conntrack --delete --orig-src {{ip_address}}