What Operating Systems may the External Indexer be installed on?
解决办法
From the Safeguard for Privileged Sessions 6.6.1 Administration Guide, "The external indexer can be installed on the following 64-bit operating systems: Red Hat Enterprise Linux Server 6.7, Red Hat Enterprise Linux Server 7, and CentOS 7. The installer is a self-contained package that includes every required dependency of the indexer."