破解/解密 Linux 系統帳號的密碼(明碼)

John the Ripper password cracker

wget http://www.openwall.com/john/j/john-1.8.0.tar.gz

tar zxvf john-1.8.0.tar.gz

cd john-1.8.0

cd src

make

make clean SYSTEM

make clean generic

cd ../run/

./john --test (不一定要執行)

./unshadow /etc/passwd /etc/shadow > passwd_shadow

./john --show passwd_shadow