Redis download and installtion
======> Download and Extract Source Code
cd /tmp
curl -O http://download.redis.io/redis-stable.tar.gz
tar xzvf redis-stable.tar.gz
cd redis-stable
======> Build and install Redis
make
make test
sudo make install
======> Cofigure Redis
sudo mkdir /etc/redis
sudo cp /tmp/redis-stable/redis.conf /etc/redis
sudo nano /etc/redis/redis.conf =======> change supervised directive to systemd( supervised no -> supervised systemd)