Trying to authenticate a user in Zowe with a client certificate but keep receiving this error from OMVS SECTRACE Security Trace from R_Usermap :
2023/135 16:39:51.27 CAS2205I REQUEST=R_Usermap ,EXIT=PRE ,RC=N/A
2023/135 16:39:51.30 CAS2206I USER=ZOWEUSR,UID=222 ,GROUP=ZOWEDMIN,GID=
2023/135 16:39:51.30 CAS2206I Function=Kerbname/cert to User ID,Option=0 ,MF
2023/135 16:39:51.30 CAS2206I Certificate=YES,Appluserid=
2023/135 16:39:51.30 CAS2205I REQUEST=R_Usermap ,EXIT=POST,RC=8/8:8
2023/135 16:39:51.30 CAS2205I REQUEST=CHECK_ACCESS ,EXIT=PRE ,RC=N/A
Release : 16.0
ACF2 apar LU08072 addresses the problem with R_Usermap RC=8/8:8.
APAR PROBLEM DESCRIPTION:
The R_usermap callable service can map a Linux ID to a mainframe userid or a mainframe userid to a Linux ID. This is no longer working.
Note that the CERTMAP mapping error is not limited to Linux.