Tool and Usage
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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.
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Related tool information
This tool is categorized as a port knocking tool.