When trying to login to WorkspaceOne, you observe the following error:
VMware Identity Manager 3.3.7
Upon further review, the /usr/local/horizon/conf/idm-cacerts file in the vIDM appliance had been renamed:
Move the file back to the original name:
mv /usr/local/horizon/conf/idm-cacerts.backup /usr/local/horizon/conf/idm-cacerts
Set the correct owner permissions to the file:
chown horizon:www /usr/local/horizon/conf/idm-cacerts
Finally, restart horizon-workspace:
/etc/init.d/horizon-workspace restart