一，创建文件夹
cd /usr/local
mkdir mongodb二，下载rpm文件
cd mongodb
wget https://repo.mongodb.org/yum/redhat/7/mongodb-org/7.0/x86_64/RPMS/mongodb-org-mongos-7.0.5-1.el7.x86_64.rpm
wget https://repo.mongodb.org/yum/redhat/7/mongodb-org/7.0/x86_64/RPMS/mongodb-org-server-7.0.5-1.el7.x86_64.rpm
wget https://downloads.mongodb.com/compass/mongodb-mongosh-2.1.5.x86_64.rpm三，安装
rpm -ivh mongodb-org-mongos-7.0.5-1.el7.x86_64.rpm
rpm -ivh mongodb-org-server-7.0.5-1.el7.x86_64.rpm
rpm -ivh mongodb-mongosh-2.1.5.x86_64.rpm四，启动服务
systemctl start mongod.service五，进入命令行
mongosh
六，开启账户和pass
show dbs;
use admin
#创建账户
db.createUser({user: 'root', pwd:'TdLLQd689', roles:[{role: 'root', db: 'admin'}]});#编辑配置文件
vi /etc/mongod.conf
#修改节点，保存退出
security:
# keyFile: /data1/mongodb/key/keyfile
authorization: enabled#重启服务
systemctl restart mongod.service#通过创建的用户登录数据库
mongosh mongodb://127.0.0.1:27017/admin -u root -p 'TdLLQd689'七，进阶优化，请参考