Installation for PowerCenter and Data Quality

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Running the SPN Format Generator

You can run the Informatica Kerberos SPN Format Generator to generate a file that shows the correct format for the SPNs and keytab file names required in the Informatica domain.

You can run the SPN Format Generator from the command line or from the Informatica installer. The SPN Format Generator generates a file with the names of the service principal and keytab files based on the parameters you provide.

Verify that the information you provide is correct. The SPN Format Generator does not validate the values you enter.

On the machine where you extracted the installation files, go to the following directory:

<Informatica installation files directory>/Server/Kerberos

On a shell command line, run the SPNFormatGenerator file.

Press

Enter

to continue.

In the

Service Principal Level

section, select the level at which to set the Kerberos service principals for the domain.

The following table describes the levels you can select:

Level	Description
Process Level	Configures the domain to use a unique service principal name (SPN) and keytab file for each node and each application service on a node. The number of SPNs and keytab files required for each node depends on the number of application service processes that run on the node. Use the process level option for domains that require a high level of security, such as productions domains.
Node Level	Configures the domain to share SPNs and keytab files on a node. This option requires one SPN and keytab file for the node and all application services that run on the node. It also requires a separate SPN and keytab file for all HTTP processes on the node. Use the node level option for domains that do not require a high level of security, such as test and development domains.

Enter the domain and node parameters required to generate the SPN format.

The following table describes the parameters you must specify:

Prompt	Description
Domain Name	Name of the domain. The name must not exceed 128 characters and must be 7-bit ASCII only. It cannot contain a space or any of the following characters: ` % * + ; " ? , < > \ /
Node name	Name of the Informatica node.
Node host name	Fully qualified host name or the IP address of the machine on which to create the node. 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 for the Informatica domain services. The realm name must be in uppercase.

If you set the service principal at node level, the prompt

Add Node?

appears. If you set the service principal at process level, the prompt

Add Service?

appears.

At the

Add Node?

prompt, enter 1 to generate the SPN format for an additional node. Then enter the node name and node host name.

To generate the SPN formats for multiple nodes, enter 1 at each

Add Node?

prompt and enter a node name and node host name.

At the

Add Service?

prompt, enter 1 to generate the SPN format for a service that will run on the preceding node. Then enter the service name.

To generate the SPN formats for multiple services, enter 1 at each

Add Service?

prompt and enter a service name.

Enter 2 to end the

Add Service?

Add Node?

prompts.

The SPN Format Generator displays the path and file name of the file that contains the list of service principal and keytab file names.

Press Enter to exit the SPN Format Generator.

The SPN Format Generator generates a text file that contains the SPN and keytab file names in the format required for the Informatica domain.

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Table of Contents

Installation for PowerCenter and Data Quality

Installation for PowerCenter and Data Quality

Running the SPN Format Generator

Running the SPN Format Generator