# [EN] Johnny ###### tags: `Writeup` `Crypto` `English` > [name=FlyDragon] ## Step.1 Download passwd and shadow They are related to a linux account ## Step.2 Challenge name `Johnny` , which let you know this challenge can be solved with John the ripper ```bash $ unshadow passwd shadow > unshadow ``` ``` $ john --format=crypt unshadow ``` Get the password and account ``` Johnny:passw0rd:1001:1001::/home/Johnny:/bin/sh ``` ## Step.3 ``` $ nc lotuxctf.com 30005 ``` Login to get the flag {%hackmd M1bgOPoiQbmM0JRHWaYA1g %}