Connecting to a Single Node Instance Using Mongo Shell (Public Network)

For details about how to install a MongoDB client, see How Can I Install a MongoDB Client?

The following describes how to upload the certificate to a Linux and Window ECS:

• In Linux, run the following command:
  scp<IDENTITY_FILE><REMOTE_USER>@<REMOTE_ADDRESS>:<REMOTE_DIR>

  

  • IDENTITY_FILE is the directory where the root certificate resides. The file access permission is 600.
  • REMOTE_USER is the ECS OS user.
  • REMOTE_ADDRESS is the ECS address.
  • REMOTE_DIR is the directory of the ECS to which the root certificate is uploaded.

• In Windows, upload the root certificate using a remote connection tool.

Method 1: Using a public network connection address

Example command:

./mongo <Public network connection address> --ssl --sslCAFile<FILE_PATH> --sslAllowInvalidHostnames

Parameter description:

• Public Network Connection Address: You can click the name of the instance to go to the Basic Information page. In the navigation pane on the left, choose Connections. On the displayed page, click the Public Connection tab. In the Address area, obtain the instance connection address from the Public Network Connection Address field.
  Figure 3 Obtaining the public network connection address
  

  The format of the public connection address is as follows. The database username rwuser and authentication database admin cannot be changed.

  mongodb://rwuser:<password>@192.168.xx.xx:8635/test?authSource=admin

  Pay attention to the following parameters in the public connection address:

  Table 1 Parameter information

  Parameter	Description
  rwuser	Database username
  <password>	Password for the database username. Replace it with the actual password. If the password contains at signs (@), exclamation marks (!), or percent signs (%), replace them with hexadecimal URL codes (ASCII) %40, %21, and %25 respectively. For example, if the password is ****@ %***!, the corresponding URL code is **** %40%25*** %21.
  192.168.xx.xx:8635	The EIP and port bound to the single node instance to be connected.
  test	The name of the test database. You can set this parameter based on your service requirements.
  authSource=admin	The authentication database of user rwuser must be admin. authSource=admin is fixed in the command.

• FILE_PATH is the path for storing the root certificate.
• --sslAllowInvalidHostnames: To ensure that the internal communication of the single nodes does not occupy resources such as the user IP address and bandwidth, the single node certificate is generated using the internal management IP address. --sslAllowInvalidHostnames is needed for the SSL connection through a public network.

Command example:

./mongo mongodb://rwuser:<password>@192.168.xx.xx:8635/test?authSource=admin --ssl --sslCAFile/tmp/ca.crt --sslAllowInvalidHostnames

Method 2: Using an EIP

Example command:

./mongo --host <DB_HOST> --port <DB_PORT> -u <DB_USER> -p --authenticationDatabaseadmin --ssl --sslCAFile<FILE_PATH> --sslAllowInvalidHostnames

Parameter description:

• DB_HOST is the EIP bound to the instance to be connected.

  On the Instances page, click the instance name. The Basic Information page is displayed. Choose Connections> Public Connection and obtain the EIP of the corresponding node.

• DB_PORT is the database port. The default port number is 8635.

  You can click the instance name to go to the Basic Information page. In the navigation pane on the left, choose Connections. On the displayed page, click the Public Connection tab and obtain the port from the Database Port field in the Basic Information area.

  Figure 4 Obtaining the port
  
• DB_USER is the database user. The default value is rwuser.
• FILE_PATH is the path for storing the root certificate.
• --sslAllowInvalidHostnames: To ensure that the internal communication of the single nodes does not occupy resources such as the user IP address and bandwidth, the single node certificate is generated using the internal management IP address. --sslAllowInvalidHostnames is needed for the SSL connection through a public network.

Command example:

./mongo --host 192.168.xx.xx --port 8635 -u rwuser -p --authenticationDatabase admin --ssl --sslCAFile /tmp/ca.crt --sslAllowInvalidHostnames

Enter the database password when prompted:

Enter password:

replica:PRIMARY>

Method 1: Using a public network connection address

Example command:

./mongo <Public network address>

Public Network Connection Address: You can click the name of the instance to go to the Basic Information page. In the navigation pane on the left, choose Connections. On the displayed page, click the Public Connection tab. In the Address area, obtain the instance connection address from the Public Network Connection Address field.

Figure 5 Obtaining the public network connection address

The format of the public connection address is as follows. The database username rwuser and authentication database admin cannot be changed.

mongodb://rwuser:<password>@192.168.xx.xx:8635/test?authSource=admin

Pay attention to the following parameters in the public connection address:

Command example:

./mongo mongodb://rwuser:<password>@192.168.xx.xx:8635/test?authSource=admin

Method 2: Using an EIP

Example command:

./mongo --host <DB_HOST> --port <DB_PORT> -u <DB_USER> -p --authenticationDatabase admin

Parameter description:

• DB_HOST is the EIP bound to the instance to be connected.

  On the Instances page, click the instance name. The Basic Information page is displayed. Choose Connections> Public Connection and obtain the EIP of the corresponding node.

• DB_PORT is the database port. The default port number is 8635.

  You can click the instance name to go to the Basic Information page. In the navigation pane on the left, choose Connections. On the displayed page, click the Public Connection tab and obtain the port from the Database Port field in the Basic Information area.

  Figure 6 Obtaining the port
  
• DB_USER is the database user. The default value is rwuser.

Command example:

./mongo --host 192.168.xx.xx --port 8635 -u rwuser -p --authenticationDatabase admin

Enter the database password when prompted:

Enter password:

replica:PRIMARY>