Linux DSN Configuration

This section describes how to set up ODBC connectivity and configure DSNs on several Linux distributions: Debian-based systems, like Ubuntu, and Red Hat Linux platforms, like Red Hat Enterprise Linux (RHEL) and Fedora.

Minimum Linux Versions

Here are the minimum supported versions for Red Hat-based and Debian-based systems:


OS	Min. Version
Ubuntu	18.04
Debian	10
RHEL	8
Fedora	28
SUSE	15

Installing the Driver Dependencies

Run the following commands as root or with sudo to install the necessary dependencies:

Debian/Ubuntu:

apt-get install libc6 libstdc++6 zlib1g libgcc1

RHEL/Fedora:
```
yum install glibc libstdc++ zlib libgcc
```

Installing the Driver

You can use standard package management systems to install the driver.

On Debian-based systems, like Ubuntu, run the following command with root or sudo:

dpkg -i /path/to/driver/setup/SFMarketingCloudODBCDriverforUnix.deb

On systems that support the RPM package format, run the following command with root or sudo:

rpm -ivh /path/to/driver/SFMarketingCloudODBCDriverforUnix.rpm

Licensing the Driver

Run the following commands to license the driver. To activate a trial, omit the <key> input.

cd /opt/cdata/cdata-odbc-driver-for-sfmarketingcloud/bin/
sudo ./install-license.sh <key>

Connecting through the Driver Manager

The driver manager loads the driver and passes function calls from the application to the driver. You need to register the driver with the driver manager and you define DSNs in the driver manager's configuration files.

The driver installation registers the driver with the unixODBC driver manager and creates a system DSN. The unixODBC driver manager can be used from Python and from many other applications. Your application may embed another driver manager.

Creating the DSN

See Using unixODBC to install unixODBC and configure DSNs. See Using the DataDirect Driver Manager to create a DSN to connect to OBIEE, Informatica, and SAS.

Connecting to Salesforce Marketing Cloud

For both REST and SOAP APIs, you have the option to refine data access using the following properties:

Instance: The instance of the Salesforce Marketing Cloud API used. The default Instance is s7 of the Web Services API; however, you can use this property to specify a different instance.
Subdomain: If the instance is greater than s10, you must also specify the subdomain.

REST API

To connect, set Schema to REST.

The Salesforce Marketing Cloud REST API uses the OAuth authentication standard. To authenticate using OAuth, you must create a custom OAuth application to obtain values for the OAuthClientId and OAuthClientSecret connection properties. See Creating a Custom OAuth App for more information.

SOAP API

To connect, set Schema to SOAP.

The Salesforce Marketing Cloud SOAP API can connect using OAuth, but also supports a legacy use of login credentials.

Note: Data extension objects in Salesforce Marketing Cloud are only accessible through the SOAP API.

Authenticating to Salesforce Marketing Cloud

User Accounts (OAuth)

Set the AuthScheme to OAUTH. Also, in all OAuth flows, set AccountId to the specific MID of the target business unit. NOTE: This is not available for legacy packages. The following OAuth sections assume that you have set both these connection properties.

Desktop Apps

Follow the steps below to authenticate with the credentials for a custom OAuth application. See Creating a Custom OAuth App for information about custom OAuth applications. Get an OAuth Access Token

After setting the following, you are ready to connect:

OAuthClientId: The Client Id in your application settings.
OAuthClientSecret: The Client Secret in your application settings.
CallbackURL: The Redirect URL in your application settings.

When you connect the driver opens the OAuth endpoint in your default browser. Log in and grant permissions to the application. To connect to data, set the OAuthAccessToken connection property to the access token returned by the stored procedure. When the access token expires after ExpiresIn seconds, call GetOAuthAccessToken again to obtain a new access token.

Headless Machines

To configure the driver to use OAuth with a user account on a headless machine, you need to authenticate on another device that has an internet browser.

Choose one of two options:
- Option 1: Obtain the OAuthVerifier value as described in "Obtain and Exchange a Verifier Code" below.
- Option 2: Install the driver on a machine with an Internet browser and transfer the OAuth authentication values after you authenticate through the usual browser-based flow, as described in "Transfer OAuth Settings" below.
Then configure the driver to automatically refresh the access token on the headless machine.

Option 1: Obtain and Exchange a Verifier Code

To obtain a verifier code, you must authenticate at the OAuth authorization URL.

Follow the steps below to authenticate from the machine with an Internet browser and obtain the OAuthVerifier connection property.

Choose one of these options:
- If you are using the Embedded OAuth Application click Salesforce Marketing Cloud OAuth endpoint to open the endpoint in your browser.
- If you are using a custom OAuth application, create the Authorization URL by setting the following properties:
  - InitiateOAuth: Set to OFF.
  - OAuthClientId: Set to the client Id assigned when you registered your application.
  - OAuthClientSecret: Set to the client secret assigned when you registered your application.
  Then call the rpgrestsp-getoauthauthorizationurl stored procedure with the appropriate CallbackURL. Open the URL returned by the stored procedure in a browser.
Log in and grant permissions to the driver. You are then redirected to the callback URL, which contains the verifier code.
Save the value of the verifier code. Later you will set this in the OAuthVerifier connection property.

Next, you need to exchange the OAuth verifier code for OAuth refresh and access tokens. Set the following properties:

On the headless machine, set the following connection properties to obtain the OAuth authentication values:

InitiateOAuth: REFRESH.
OAuthVerifier: The verifier code.
OAuthClientId: (custom applications only) The Client Id in your custom OAuth application settings.
OAuthClientSecret: (custom applications only) The Client Secret in the custom OAuth application settings.
OAuthSettingsLocation: The location of the settings file where OAuth values are saved when you set InitiateOAuth to GETANDREFRESH or REFRESH. Alternatively, you can hold this location in memory by specifying a value starting with 'memory://'. When this connection property is set, the data persists across connections.

After the OAuth settings file is generated, you need to re-set the following properties to connect:

InitiateOAuth: REFRESH.
OAuthClientId: (custom applications only) The client Id assigned when you registered your application.
OAuthClientSecret: (custom applications only) The client secret assigned when you registered your application.
OAuthSettingsLocation: The location containing the encrypted OAuth authentication values. Make sure this location gives read and write permissions to the driver to enable the automatic refreshing of the access token.

Option 2: Transfer OAuth Settings

Prior to connecting on a headless machine, you need to create and install a connection with the driver on a device that supports an Internet browser. Set the connection properties as described in "Desktop Applications" above.

After completing the instructions in "Desktop Applications", the resulting authentication values are encrypted and written to the location specified by OAuthSettingsLocation. The default filename is OAuthSettings.txt.

Once you have successfully tested the connection, copy the OAuth settings file to your headless machine.

On the headless machine, set the following connection properties:

OAuthClientId: (custom applications only) The client Id assigned when you registered your application.
OAuthClientSecret: (custom applications only) The client secret assigned when you registered your application.
OAuthSettingsLocation: The location of your OAuth settings file. Make sure this location gives read and write permissions to the driver to enable the automatic refreshing of the access token.

Server-to-Server (OAuthClient)

When creating an application in Salesforce Marketing Cloud, you can select server-to-server authentication. In this case, the application's permissions are configured directly in the Salesforce Marketing Cloud UI. As such, there is no user context and hence no browser-based login or permission grants. For this scheme, you must create your own credentials.

Specify the following properties to enable server-to-server OAuth authentication for your application:

AuthScheme: OAuthClient.
InitiateOAuth: GETANDREFRESH.
OAuthClientId: The client Id.
OAuthClientSecret: The client secret.
Subdomain: Specify the Salesforce Marketing Cloud API subdomain.

User/Password Accounts (Basic)

The Salesforce Marketing Cloud SOAP API can connect using either your login credentials or OAuth authentication. Note that this authentication scheme is not available for REST API-based applications.

To connect to data using login credentials authentication, set the following:

AuthScheme: Basic.
User: The Salesforce Marketing Cloud user account.
Password: The password used to authenticate the user.
UseLegacyAuthentication: True.

Refreshing OAuth Values

The driver can refresh the temporary OAuth access tokens obtained during the browser-based OAuth authentication exchange. By default, the driver saves the encrypted tokens in the odbc.ini file corresponding to the DSN. Access to this odbc.ini file can be restricted in the case of System DSNs.

To enable the automatic token exchange, you can give the driver write access to the system odbc.ini. Or, you can set the OAuthSettingsLocation connection property to an alternate file path, to which the driver would have read and write access.

    OAuthSettingsLocation=/tmp/oauthsettings.txt

Installing Dependencies for OAuth Authentication

The OAuth authentication standard requires the authenticating user to interact with Salesforce Marketing Cloud, using a web-browser. If the first OAuth interaction is to be done on the same machine the driver is installed on, for example, a desktop application, the driver needs access to the xdg-open program, which opens the default browser.

To satisfy this dependency, install the corresponding package with your package manager:


Debian/Ubuntu Package	RHEL/Fedora Package	File
xdg-utils	xdg-utils	xdg-open

Set the Driver Encoding

The ODBC drivers need to specify which encoding to use with the ODBC Driver Manager. By default, the CData ODBC Drivers for Unix are configured to use UTF-16 which is compatible with unixODBC, but other Driver Managers may require alternative encoding.

Alternatively, if you are using the ODBC driver from an application that uses the ANSI ODBC API it may be necessary to set the ANSI code page. For example, to import Japanese characters in an ANSI application, you can specify the code page in the config file '/opt/cdata/cdata-odbc-driver-for-sfmarketingcloud/lib/cdata.odbc.sfmarketingcloud.ini':

[Driver]
AnsiCodePage = 932

ODBC Driver for Salesforce Marketing Cloud