Security Guide > Using Secure Communications Encryption with TLS > TLS Client Configuration > Communicating with GCD
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Communicating with GCD
The clients can enable a TLS connection (default is disabled), disable server certificate verification (default is enabled). These options will be specified as part of connection string. The following table describes the TLS connection string keyword/value pairs for the JDBC driver and DotNet data provider. The keywords and values are case-insensitive (with the exception of path/file names on Linux).
Note:   If TLS is not enabled, the other TLS properties are not used and will not have any effect on connection.
Keyword
Type
Values (Default Bolded)
Description
TLS
Boolean
ON/OFF
Enable TLS communication (ON) or disable TLS communication (OFF).
TLS_ENFORCE_CERT
Boolean
ON/OFF
Controls whether the client TLS handshake process will enforce (ON) or ignore (OFF) TLS server certificate verification.
TLS_CONN_TIMEOUT
Integer
Whole number
15 (DotNet)
3 JDBC
Timeout in seconds to wait on a TLS connection attempt. Zero (0) for no timeout. Negative values are not supported.
TLS_CA_CERT_FILE
String
path/file name
The path and file name of a CA certificate on the client. If set, it overrides the use of default trust stores for locating CA certificate(s).
Last modified date: 01/27/2026