Tuesday, September 27, 2011

Installing John The ripper on Linux machine

John the ripper is undoubtedly one of the best password cracking tool. People have been experiencing some problems with installing it. So here we bring out a tutorial on how to install the famous password cracker on a Linux machine.

This is the method to install and use john the ripper in fedora/ubuntu (and many other linux as well)..

1) Download john the ripper software


2) Extract it and then copy the text from


3) Save the copy text in john folder with john.patch.

4) Open terminal and go to john folder

cd Desktop/john-

5) Now we have to patch our john software with following command

patch -Np1 -i john.patch

6) go to src folder

cd src

7) run this command

make linux-x86-sse2

8) cd .. and goto run folder cd run.

9) Run this commmand

./unshadow /etc/passwd /etc/shadow > filename

10) Finally run this command to crack password

./john filename

and here you have the ripper running.