db.createUser ({User: "ZHF", pwd: "123", Roles: [{Role: "userAdminAnyDatabase", DB: "ADMIN"}]})
db.auth ( "ZHF", "123")
DB. the auth ( "kpf2", "123")
db.system.users.remove ({User: "ZHF"})
db.grantRolesToUser ( "kpf2", [{Role: "userAdminAnyDatabase", DB: "ADMIN"}])
39.104.181.156 27017 the Telnet
the Telnet 39.104.203.221 2181
// database to a path
mongodump --port port number -u user name -p password -d database -o / usr / local / (backup to this path)
// database into Mongodb
mongorestore --port port number -u user name -p password -d database --dir / usr / local / file / (to import this file into the database)
mongodump -h 127.0.0.1 -o C: \ the users \ ADMIN \ Desktop \ mongodata
mongorestore --drop C:\Users\admin\Desktop\mongodata
\Users\admin\Desktop\mongodata
mongodump -h 127.0.0.1 -o C:\Users\Administrator\Desktop\mongodata
Mongorestore --drop D:\zhf\mongodata
mongodump --port 27017 -u cesiumlab -p 123 -d admin -o C:\Users\Administrator\Desktop\mongodata
mongodump -h 127.0.0.1 -u cesiumlab -p 123 --db xbjsdataserver -o C:\Users\Administrator\Desktop\mongodata
mongodump -h dbhost -d dbname -o dbdirectory