An installation of Aspera Enterprise Server or Connect Server may fail on CentOS 6.x or Red Hat Enterprise Linux 6.x due to dependencies on perl modules. The perl-CGI module is not installed by default with Perl 5.10 on CentOS/RHEL 6.x. If this happens please follow the steps below to correct the issue with your Linux host.
yum install perl-CGI
Now Enterprise Server can be installed per the Installation section of the Admin Guide:
rpm -Uvh aspera-entsrv-x.x.x.xxxxx-linux-64.rpm