The userid on Db2® AUTHID and COMAUTHID parameters

When you install a DB2CONN resource that specifies the AUTHID, SIGNID, or COMAUTHID attribute, or when you install a DB2ENTRY resource that specifies AUTHID, or when you modify one of these attributes, CICS® checks that the user ID performing the operation is authorized as a surrogate user of AUTHID, COMAUTHID, or SIGNID. This checking also applies to the CICS region user ID during group list install on a CICS cold or initial start.

For more information about these attributes, see DB2CONN resources and DB2ENTRY resources.

The XUSER system initialization parameter is also used to control access to the AUTHTYPE and COMAUTHTYPE attributes, but the security control for these parameters is managed through the facility general resource class. For more information, see Security in a CICS Db2 environment.