sudo rpm -Uvh http://nginx.org/packages/centos/7/noarch/RPMS/nginx-release-centos-7-0.el7.ngx.noarch.rpm
sudo yum install -y nginx
启动：
sudo systemctl start nginx.service
开机启动：
sudo systemctl enable nginx.service
目录：/etc/nginx/nginx.conf
sudo rpm -Uvh http://nginx.org/packages/centos/7/noarch/RPMS/nginx-release-centos-7-0.el7.ngx.noarch.rpm
sudo yum install -y nginx
启动：
sudo systemctl start nginx.service
开机启动：
sudo systemctl enable nginx.service
目录：/etc/nginx/nginx.conf