reference: https://www.digitalocean.com/community/tutorials/how-to-install-and-use-redis
$ sudo apt-get update
$ sudo apt-get install build-essential
$ sudo apt-get install tcl8.5
$ wget http://download.redis.io/redis-stable.tar.gz
$ tar xvzf redis-stable.tar.gz
$ cd redis-stable
$ make
$ make test
$ sudo make install
$ cd utils
$ sudo ./install_server.sh
$ sudo service redis_6379 start
$ sudo service redis_6379 stop