[MongoDB] Learning notes--user Management

1. Create a Super User

 Use Admindb.createuser (    {        user: "Adminusername",        pwd: "UserPassword",        roles:         [            {                roles: "Useradminanydatabase",                DB: "admin"            }        ]     })

There are two types of superuser role, useradmin or useradminanydatabase (more access to all databases than the previous one).

DB is the name of the specified database, and admin is the management database.

2. Log in with the newly created user

MONGO--host xxx-u adminusername-p userpassword--authenticationdatabase Admin

3. View the permissions of the current user

Db.runcommand (    {        usersinfo: "UserName",        showprivileges:true    })

4. Create a general user, also use CreateUser

Use DB01
Db.createuser (    {        user: "Oneuser",        pwd: "12345",        roles:  [            {role: "read", DB: "Db01"},            {role: "read", DB: "DB02"},            {role: "read", DB: "Db03 "}        ]    })

5. Create a superuser who is not restricted by access

 Use Admindb.createuser (    {        user: "Superuser",        pwd: "pwd",        roles:[ "Root" ]    })

6. Change the password

Use admin
Db.changeuserpassword ("username", "xxx")

7. View user Information

Db.runcommand ({usersinfo: "UserName"})

8. Change Password and user information

Db.runcommand (    {        updateUser: "username",        pwd: "xxx",        customdata:{title: "xxx"}    )

Note:

1. and user management related operations are basically to run under the Admin database, to use the admin first;

2. If under a single database, it can only operate on the permissions of the current database;

3. Db.adduser is an older version of the operation, and now the version can also continue to use, created by the user is a root role of the Super administrator.