dsniff: dsniff (network auditing and penetration testing) dsniff: dsniff: dsniff is a collection of tools for network auditing and penetration dsniff: testing. dsniff: dsniff, filesnarf, mailsnarf, msgsnarf, urlsnarf, and webspy dsniff: passively monitor a network for interesting data. dsniff: arpspoof, dnsspoof, and macof facilitate the interception of network dsniff: traffic normally unavailable to an attacker. dsniff: sshmitm and webmitm implement active monkey-in-the-middle attacks dsniff: against redirected SSH and HTTPS sessions by exploiting weak bindings dsniff: in ad-hoc PKI.