Help Center> Data Lake Factory> User Guide> Configuration and Management> Managing Host Connections
Updated on 2022-02-22 GMT+08:00
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Managing Host Connections

DLF can save the host connection information required for scripts and jobs. If the host connection information changes, you only need to edit it on the Host Connection Management page, but do not need to edit it in scripts or jobs one by one.

Creating a Host Connection

Ensure that the quantity of host connections is less than the maximum connection quota (20).

  1. Log in to the DLF console.
  2. In the navigation tree of the Data Development console, choose Configuration > Manage Host Connection.
  3. Click Create Host Connection. In the displayed dialog box, set the host connection parameters.

    Table 1 Host connection parameters

    Parameter

    Mandatory

    Description

    Host Connection Name

    Yes

    Name of the host connection. Must consist of 1 to 100 characters, contain only letters, digits, and underscores (_), and be unique.

    Host IP Address

    Yes

    IP address of the host. For details, see "Viewing Details About an ECS" in the Elastic Cloud Server User Guide.

    Port

    Yes

    Port number of the host.

    Username

    Yes

    Username of the host.

    Login Mode

    Yes

    Selects the login mode of the host.

    • Key pair
    • Password

    Key Pair

    Yes

    If Key Pair is the login mode of the host, the user needs to obtain the private key file, upload it to OBS, and select an OBS path.

    NOTE:

    The uploaded private key file must be in PEM format, and the uploaded private key file and the public key configured on the host must be in the same key pair.

    Key Pair Password

    No

    This parameter does not need to be configured if the key pair does not have password.

    Password

    Yes

    If the login mode of the host is to use a password, enter a login password.

    CDM Cluster

    Yes

    Name of the Cloud Data Migration (CDM) cluster.

    KMS Key

    Yes

    Key created on Key Management Service (KMS) and used for encrypting and decrypting user passwords and key pairs. You can select a created key from KMS.

    Host Connection Description

    No

    Descriptive information about the host connection.

  4. Click Test to test connectivity to the host. If the host can be connected, the host connection has been successfully created.
  5. Click OK.

Editing a Host Connection

After a host connection is created, you can modify host connection parameters as required.

  1. Log in to the DLF console.
  2. In the navigation tree of the Data Development console, choose Configuration > Manage Host Connection.
  3. In the Operation column of the host connection, click Edit. In the displayed dialog box, modify the host connection parameters as required.

    For security purposes, you need to enter the password of the host again when modifying the host connection parameters.

  4. Click Test to test connectivity to the host. If the host can be connected, the host connection has been successfully created.
  5. Click OK.

Deleting a Host Connection

If you do not need to use a host connection any more, perform the following operations to delete the host connection:

  1. Log in to the DLF console.
  2. In the navigation tree of the Data Development console, choose Configuration > Manage Host Connection.
  3. In the Operation column of the host connection, click Delete. The Delete Host Connection dialog box is displayed.
  4. Click OK.

    If you forcibly delete a host connection that is being associated with a script or job, ensure that services are not affected by going to the script or job development page and reassociating an available host connection with the script or job.