Enable or disable password-free access for an ApsaraDB for MongoDB instance

Prerequisites

• The instance is a replica set or sharded cluster instance.
• The database version of the instance is 4.0 (with the minor version of mongodb_20190408_3.0.11 or later). If the version is earlier than the required version, upgrade the instance. For more information, see Upgrade MongoDB versions and Upgrade the minor version of an ApsaraDB for MongoDB instance.
  Note You can view the database version and the minor version on the Basic Information page in the ApsaraDB for MongoDB console.
• The instance is in a VPC. If the network type is Classic Network, switch it to VPC. For more information, see Switch from Classic Network to VPC.

Procedure

1. Log on to the ApsaraDB for MongoDB console.
2. In the upper-left corner of the page, select the resource group and the region of the target instance.
3. In the left-side navigation pane, click Replica Set Instances or Sharded Cluster Instances based on the instance type.
4. Find the target instance and click its ID.
5. In the left-side navigation pane, click Database Connection.
6. In the upper-right corner of the Intranet Connection - VPC section, click Enable password-free access or Disable password-free access.
   • Enable password-free access.

     After password-free access is enabled, the ECS instance that shares the same VPC with the ApsaraDB for MongoDB instance can connect to a database of this ApsaraDB for MongoDB instance without a password. You can still use a database username and its password to connect to this database.

     Note If you want to connect to a database of an ApsaraDB for MongoDB instance without entering a password, add the IP address of your client to a whitelist of this instance. For more information, see Configure a whitelist for an ApsaraDB for MongoDB instance.
     The following command provides an example of a password-free connection by using the mongo shell:

     mongo --host dds-bpxxxxxxxx.mongodb.rds.aliyuncs.com:3717

   • Disable password-free access.
     Note After password-free access is disabled, the applications that have established connections with a database of this ApsaraDB for MongoDB instance are disconnected. You must change the database connection mode for your application before you disable password-free access.
     
7. In the message that appears, click OK.

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