Configuring Kerberos Authentication in an Informatica Domain

Configuring Kerberos Authentication in an Informatica Domain

Step 3. Generate the Service Principal Name and Keytab Formats

Step 3. Generate the Service Principal Name and Keytab Formats

Use the Informatica Kerberos SPN Format Generator utility to generate the Service Principal Names (SPN) and keytab file name formats required to use Kerberos authentication.
The Kerberos SPN Format Generator utility generates a text file named SPNKeytabFormat.txt that shows the correct format for the SPN and keytab file names.
  1. On a machine that hosts an Informatica node, go to the following directory:
    <Informatica installation directory>\tools\Kerberos
  2. Run the SPNFormatGenerator.exe utility.
  3. Click
    Next
    .
  4. Select
    Node Level
    .
  5. Click
    Next
    .
  6. Enter the properties required to generate the SPN and keytab file formats.
    The following table describes the properties:
    Prompt
    Description
    Domain Name
    Name of the Informatica domain. The name must not exceed 128 characters and must be 7-bit ASCII. It cannot contain a space or any of the following characters: ` % * + ; " ? , < > \ /
    Node Name
    Name of the Informatica node.
    Node Host Name
    Fully qualified name or the IP address of the node host machine. The node host name cannot contain the underscore (_) character.
    Do not use
    localhost
    . The host name must explicitly identify the machine.
    Service Realm Name
    Name of the Kerberos realm as defined in the Kerberos configuration file. The realm name must be in uppercase.
  7. To generate the SPN format for an additional node, click
    +Node
    and specify the node name and host name.
    The following image shows the entries for multiple nodes in the InfaDomain domain in the SPN Format Generator utility:
  8. Click
    Next
    .
    The SPN Format Generator utility displays the path and file name of the file that contains the list of service principal and keytab file names.
  9. Click
    Done
    to exit the SPN Format Generator.
  10. Open the SPNKeytabFormat.txt file.
    The following example shows the contents of the SPNKeytabFormat.txt file generated based on the entries in the preceding image:
    ENTITY_NAME SPN KEY_TAB_NAME KEY_TAB_TYPE node01 isp/node01/InfaDomain/COMPANY.COM node01.keytab NODE_SPN node01 HTTP/US001DEV.company.com@COMPANY.COM webapp_http.keytab NODE_HTTP_SPN node02 isp/node02/InfaDomain/COMPANY.COM node02.keytab NODE_SPN node02 HTTP/US005DEV.company.com@COMPANY.COM webapp_http.keytab NODE_HTTP_SPN node03 isp/node03/InfaDomain/COMPANY.COM node03.keytab NODE_SPN node03 HTTP/US007DEV.company.com@COMPANY.COM webapp_http.keytab NODE_SPN

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