Tool and Usage
A port knocking implementation to make network ports to become stealth or trigger events based on a port knocking sequence.
Knock implements the principle of port knocking. It does so by using libpcap to sniff network traffic on interfaces and then use that to see if it matches a predefined sequence of steps.
Tool review and remarks
The review and analysis of this project resulted in the following remarks for this security tool:
- + Project is mature (10+ years)
- - No updates for a while
Similar tools to Knock:
Pyknock is a tool to perform UDP port knocking with HMAC-PSK authentication. It can be used to harden systems and limit access to specific network ports.
The 0trace.py utility is a rewrite of 0trace (by another author) to perform reconnaissance and bypass network firewalls.