To avoid requiring the password for each renewal, you can use a keytab file.
The ODBC driver does not renew credentials itself ensure that there is a cron job or script that periodically runs to renew the credentials before their expiration. When an application runs as a service, because Kerberos credentials expire by design, renew the credentials to ensure continued service availability. Run kinit, passing in a principal name and a location of a keytab file that contains the principal's key created by ktutil.Įnsure that the login to the system was done using the Kerberos PAM (Pluggable Authentication Module). Run kinit, passing in a principal name and password. You first need to configure Kerberos on the client and then ensure that the application can use the Kerberos credential of the default principal.Įnsure that you use kinit or PAM (Pluggable Authentication Module) to obtain and cache the TGT for the principal that the connection uses, via one of the following methods: Deploying a Linux or macOS ODBC Driver Application Designed to Run as a ServiceĪ system administrator can deploy an application to run as a service that uses Kerberos Authentication to connect to SQL Server.
ServerSPN and FailoverPartnerSPN are not supported. The -E option of sqlcmd and the -T option of bcp can also be used to specify integrated authentication see Connecting with sqlcmd and Connecting with bcp for more information.Įnsure that the client principal which is going to connect to SQL Server is already authenticated with the Kerberos KDC. When connecting with a DSN, you can also add Trusted_Connection=yes to the DSN entry in odbc.ini. For example: Driver='ODBC Driver 17 for SQL Server' Server=your_server Trusted_Connection=yes You can enable Kerberos integrated authentication by specifying Trusted_Connection=yes in the connection string of SQLDriverConnect or SQLConnect. Using Integrated Authentication to Connect to SQL Server from an ODBC Application See Using Azure Active Directory for more information. It supports the MIT Kerberos Key Distribution Center (KDC), and works with Generic Security Services Application Program Interface (GSSAPI) and Kerberos v5 libraries.Īs of version 17.6, the driver also supports integrated authentication with Azure Active Directory using a federated account, system library limitations notwithstanding. thank you.The Microsoft ODBC Driver for SQL Server on Linux and macOS supports connections that use Kerberos integrated authentication. I thought it would take a couple of minutes to make it work but I've wasted many hours. OS error 115, "Operation now in progress" Error 20002 (severity 9): Now i've been trying to test the connection with the following tsql -S sqlserver usr/lib/x86_64-linux-gnu/odbc/libtdsS.so CPTimeout = CPReuse = usr/lib/x86_64-linux-gnu/odbc/libtdsodbc.so Setup = Description = TDS driver (Sybase/MS SQL) Driver = Via FreeTDS Trace = No Servername = sqlserver Database = Market Driver = FreeTDS Description = ODBC connection
The windows connection string I was using was: connectionString='DRIVER= SERVER=IP DATABASE=Market UID=usr PWD=pswĪfter researching a lot I ended up with three connection files odbc.ini odbcinst.ini and nf and they look, respectively like this:
after having installed pyodbc, freetds and a bunch of other packages I still can't connect to the DB. I set up a ubuntu server and want to run this script in this server.
I had python code that I used to run in windows, and it access a MS SQL db on a windows server 2008. I just spent hours trying to acomplish a simple task.