p0f is a versatile passive OS and application fingerprinter, and a tool for detecting NAT/connection sharing. It is useful for penetration testing, routine network monitoring, and forensics, and to aid abuse detection tools such as IDSes, spam filters, or honeypots. P0f is a tool that utilizes an array of sophisticated, purely passive traffic fingerprinting mechanisms to identify the players behind any incidental TCP/IP communications (often as little as a single normal SYN) without interfering in any way. Version 3 is a complete rewrite of the original codebase, incorporating a significant number of improvements to network-level fingerprinting, and introducing the ability to reason about application-level payloads (e.g., HTTP).Some of p0f's capabilities include:
- Highly scalable and extremely fast identification of the operating system and software on both endpoints of a vanilla TCP connection - especially in settings where NMap probes are blocked, too slow, unreliable, or would simply set off alarms.
- Measurement of system uptime and network hookup, distance (including topology behind NAT or packet filters), user language preferences, and so on.
- Automated detection of connection sharing / NAT, load balancing, and application-level proxying setups.
- Detection of clients and servers that forge declarative statements such as X-Mailer or User-Agent.
Download Here :: p0f-3.06b.tgz (for Linux)
Official Website :: http://lcamtuf.coredump.cx/p0f3/
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