Identify the Sybase instance name The specifics depend on the OS hosting your target Sybase instance. Unix Log in to the Sybase database server. su to the sybase owner. Execute the .profile associated with the sybase owner. Navigate to the root of the Sybase installation. cat the Sybase interfaces file. The Sybase instance name will be seen in the output. Windows Log in to your Sybase database server. Search for the sql.ini file, and open (but do not change!) it with a text editor. The Sybase instance name will be found there.