Signon failures accessing IDMS via TCPIP

Products

• IDMS

Issue/Introduction

Unexpected signon failures are occurring when attempting to access IDMS via a TCPIP line. The identified userid looks like a TCPIP lterm name.

IDMS DC999999 V54 T78 ICH408I USER(TCP0001 ) GROUP(        ) NAME(???                 )
IDMS DC999999 V54 T78 IRR012I  VERIFICATION FAILED. USER PROFILE NOT FOUND.
IDMS DC396010 V54 T78 Security violation for user:                    and task: IDMSJSRV

Environment

Release: All supported releases.

Cause

DFLTSGN=YES has been specified in the TYPE=INITIAL #SECRTT call in the RHDCSRTT assembly, and no DFLTUID was provided so it defaults to (VTAMNODE,PTERMID,LTERMID).

DFLTSGN was added to IDMS long before TCPIP was added. Its intended purpose was to allow a signon with a default userid to be performed when console commands were being issued.

However, it also results in such signons when accessing IDMS with TCPIP.

Resolution

Use optional bit 328 to restrict DFLTSGN functionality to the console line.