Specifies whether the provider uses NTLMv1 or NTLMv2 for authentication.

Data Type

bool

Default Value

false

Remarks

This property determines which version of the NTLM authentication protocol the connector uses when connecting.

When set to true, the connector attempts to connect using NTLMv1, an older and less secure version of the protocol.

When set to false, the connector uses NTLMv2, which is more secure and recommended for all environments.

This property is useful for compatibility with legacy systems that only support NTLMv1, though its use is discouraged in modern deployments.

Performance Considerations

Using NTLMv1 may expose connections to security vulnerabilities and is generally slower and less efficient than NTLMv2. NTLMv2 provides stronger authentication and improved performance. Only enable NTLMv1 when required for compatibility with older servers.