=====User Management=====
**Create**
<code>
use admin
db.getUsers()
db.createUser({ user: 'admin', pwd: 'xxx', roles: [ { role: 'root', db: 'admin' }] })
</code>
**Delete**
<code>
db.dropUser('admin')
</code>
**Dump**
<code>
mongodump --db=database --out=/tmp/dump
mongodump --verbose --authenticationDatabase=admin mongodb://user:passwd@127.0.0.1:27017/database --out=/tmp/backup/
</code>
**Restore**
<code>
mongorestore --db database --drop --verbose /tmp/dump/database/
mongorestore --drop --verbose --authenticationDatabase=admin mongodb://user:passwd@127.0.0.1:27017/database /tmp/dump/database/
</code>