Tech And KALi Linux For years, experts have warned about the risks of relying on weak passwords to restrict access to data, and this is still a problem. A rule of thumb for passwords is the longer, the better. In this guide I will use FTP as a target service and will show how to crack passwords in Kali Linux with Hydra. There are already several login hacker tools available, however none does either support more than one protocol to attack or support parallelized connects. We’ve previously covered password cracking using John the Ripper, Wireshark,NMAP and MiTM. Hydra can be used and compiled cleanly on Linux, Windows/Cygwin, Solaris, FreeBSD/OpenBSD, QNX (Blackberry 10) and OSX. Currently THC Hydra tool supports the following protocols: Asterisk, AFP, Cisco AAA, Cisco auth, Cisco enable, CVS, Firebird, FTP, HTTP-FORM-GET, HTTP-FORM-POST, HTTP-GET, HTTP-HEAD, HTTP-PROXY, HTTPS-FORM-GET, HTTPS-FORM-POST, HTTPS-GET, HTTPS-HEAD, HTTP-Proxy, ICQ, IMAP, IRC, LDAP, MS-SQL, M