ASA Database Administration Guide
Connection and Communication Parameters
Network communications parameters
TCP/IP, NamedPipes
Server side only
YES, NO
YES
To disallow TDS connections to a database server, set TDS to NO. If you want to ensure that only encrypted connections are made to your server, these port options are the only way to disallow TDS connections.
The following command starts a database server using the TCP/IP protocol, but disallowing connections from Open Client or jConnect applications.
dbsrv9 -x tcpip(TDS=NO) ...