p0f is a versatile passive OS fingerprinting and masquerade detection utility, to be used for evidence or information gathering on servers, firewalls, IDSes, and honeypots, for pen-testing, or jus... More
p0f is a versatile passive OS fingerprinting and masquerade detection utility, to be used for evidence or information gathering on servers, firewalls, IDSes, and honeypots, for pen-testing, or just for the fun of it. It is a complete rewrite of p0f version 1 that used to be maintained by William Stearns. [edit]Less
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