To stop the Certificate Validator (without restarting it) under MVS when you are running it as a started task, enter the following console command:
===> F SSHCERTD,STOP
OR:
===> P SSHCERTD
To stop the Certificate Validator in ISPF, enter the Tectia SSH Assistant option 4.2.2 TCRTP (Stop the Certificate server).
You should see the following console message:
SSZ0003I Command STOP accepted