Attribute

HostNameInCertificate (HNIC)

Purpose

A host name for certificate validation when TLS/SSL encryption is enabled (EncryptionMethod=1) and validation is enabled (ValidateServerCertificate=1). This option provides additional security against man-in-the-middle (MITM) attacks by ensuring that the server the driver is connecting to is the server that was requested.

Valid Values

host_name | #SERVERNAME#

where:

host_name
is the host name specified in the certificate. Consult your TLS/SSL administrator for the correct value.

Behavior

If set to a host name, the driver compares the specified host name to the DNSName value of the SubjectAlternativeName in the certificate. If the certificate does not have a SubjectAlternativeName, the driver compares the host name with the Common Name (CN) part of the certificate. If the values do not match, the connection fails and the driver throws an exception.

If set to #SERVERNAME#, the driver compares the server name that is specified in the connection URL or data source of the connection to the DNSName value of the SubjectAlternativeName in the certificate. If the certificate does not have a SubjectAlternativeName, the driver compares the host name to the CN part of the certificate’s Subject name. If the values do not match, the connection fails and the driver throws an exception. If multiple CN parts are present, the driver validates the host name against each CN part. If any one validation succeeds, a connection is established.

Default

No default value

GUI Tab

Security tab