HOWTO : Install John on Ubuntu 16.04.3 LTS

John is a password cracker.

Step 1 :

sudo apt install git build-essential libssl-dev

Step 2 :

cd ~
mkdir infosec
cd infosec

git clone https://github.com/magnumripper/JohnTheRipper.git
cd JohnTheRipper/src
./configure
make clean
make

cd ../run
./john --help

Update and Upgrade

sudo apt update
sudo apt dist-upgrade

cd ~/infosec/JohnTheRipper
git pull origin master
cd src
./configure
make clean
make

That's all! See you.