centos7에서 nodejs, npm, redis, myslq 인스톨하기, 서비스가동하기, 재부팅후 자동가동하기

npm, nodejs : https://linuxize.com/post/how-to-install-node-js-on-centos-7/

redis : https://linuxize.com/post/how-to-install-and-configure-redis-on-centos-7/

mysql : https://linuxize.com/post/install-mysql-on-centos-7/