MongoDB not authorized for query admin.system.users

Question

I am bit new to MongoDb and I am using MongoDb v.2.4.Here the problem is that when I run the mongod with --auth parameter, even after authenticating I am not able to perform

Answer 1

Firstly you should to run mongod on localhost without --auth and create user with necessary roles that you needed. In your case you should add userAdminAnyDatabase or userAdmin role. Than you could run mongod with --auth and authenticate by this user for have remote access to system.users collections.
You could read about it here.

Answer 2

Not for the OP, but for those of you landing here on an internet search for

Failed: error counting admin.system.users: not authorized on admin to execute command { count: "system.users", query: {}, $db: "admin" }

The answer, most likely, is that you need to specify the database name in the connection string. For example, in my case, I was doing a mongorestore, like so

mongorestore --uri=mongodb+srv://[username]:[password]@[mongo-server] --dir=[backup-file]

And what I needed to do was

mongorestore --uri=mongodb+srv://[username]:[password]@[mongo-server]/[database-name] --dir=[backup-file]

The same thing would apply to a mongodump. The point is that it tries to connect to the admin DB by default, and that might not be what you're trying to do.

Answer 3

> use admin
switched to db admin
> db.grantRolesToUser("your_admin_name" ,[ "root"])

This command will give you all privileges on any db as admin.

Answer 4

I think your admin user has not been configured as mongo says.

I have just answer a question in another thread with explanation step by step : Not authorized for query on admin.system.namespaces on mongodb

try it.