Dsnif

Spoofing and Mitm toolset https://www.monkey.org/~dugsong/dsniff/

#sudo dsniff -i eth0 //packet capture mode. This will also display any user:pass that it sees in plain text

//can listen to a large amount of protocols http,ftp,telnet,snmp,socks,imap,ldap,pop,nfs,citrix cia,postres, etc