Security enhancements

Db2 11.5.6 provides enhanced security when establishing Transport Layer Securiity (TLS, formerly SSL) connections.

Attention: This mod pack release is currently available for the following Db2 products:
Table 1 displays a list of security enhancements in Db2 11.5.6:
Table 1. Security enhancements in 11.5.6
Enhancement Description
Hostname validation for TLS connections Db2 11.5.6 clients can verify the hostname that appears in a Db2 instance's TLS certificate against the server to which they are configured to connect. Using hostname validation, Db2 clients have an added layer of security when negotiating secure connections to Db2 instances during a TLS handshake.

For more information, see Hostname validation for Db2 11.5.6 clients