Error Code 0x19

Definition of TGT/TGS Issue Error Codes codes.

0x19 KDC_ERR_PREAUTH_REQUIRED Additional pre-authentication required. This error often occurs in UNIX interoperability scenarios. MIT-Kerberos clients do not request pre-authentication when they send a KRB_AS_REQ message. If pre-authentication is required (the default), Windows systems will send this error. Most MIT-Kerberos clients will respond to this error by giving the pre-authentication, in which case the error can be ignored, but some clients might not respond in this way.

This code may be used in the following events / insertation strings: