Cracking Password Using John The Ripper

following is cracking password using john the ripper. John have 4 password cracking mode (wordlist mode, Singgle crack mode, incremental mode, externel mode). in here i will try to practice singgle crack mode and wordlist mode. i use file pasword.txt to save password to be cracked.

1. Singgle crack mode

root@bt:/pentest/passwords/john# john -si pasword.txt
Loaded 5 password hashes with 5 different salts (FreeBSD MD5 [32/32])
guesses: 0  time: 0:00:00:02 DONE (Tue Jan 31 09:15:30 2012)  c/s: 6229           trying: 999991900
root@bt:/pentest/passwords/john# john -show pasword.txt
0 password hashes cracked, 5 left

result show that password in pasword.txt cannot cracking.

2.wordlist crack mode

i use wordlist default from John the ripper.

root@bt:/pentest/passwords/john# john -w:password.lst  pasword.txt
Loaded 5 password hashes with 5 different salts (FreeBSD MD5 [32/32])
guesses: 0  time: 0:00:00:02 DONE (Tue Jan 31 09:36:01 2012)  c/s: 6392  trying: hallo
root@bt:/pentest/passwords/john# john -show pasword.txt
0 password hashes cracked, 5 left



result show that password in pasword.txt cannot cracking.