添加用户

$ mongo
# 添加用户
> use admin
switched to db admin
> db.createUser({user: "admin",pwd: "123456",roles: [ { role: "userAdminAnyDatabase", db: "admin" } ]});
# 添加超级用户
> db.createUser({user: "root",pwd: "123456",roles: [ { role: "root", db: "admin" } ]});
# 查看已有用户
> show users
# 删除单个用户
> db.system.users.remove({user:"XXXXXX"})
# 关闭服务
> db.shutdownServer()

# 本地连接 - 连接时验证
$ mongo -u username -p password
# 远程连接 - 连接时验证
$ mongo 127.0.0.1/admin -u username -p password
# 远程连接 - 连接后验证
$ mongo 127.0.0.1/admin
> use admin
switched to db admin
> db.auth("username", "password")
1
# 修改密码
use admin
db.changeUserPassword('用户','密码')