Unable to install DNSSEC in Plesk > Extensions > Extensions Catalog:
Installation of extension has failed
Execution of /usr/local/psa/tmp/moduleHpTWJJ/plib/scripts/pre-install.php failed with exit code 1 and the output:
DEBUG [extension/dnssec] [5a3f086e8f000] Starting: '/usr/local/psa/admin/bin/dnsmng' '--features'
DEBUG [extension/dnssec] [5a3f086e8f000] Finished in 0.03304s, Error code: 0
DNSSEC not supported on this operation system.
Server OS is CentOS 6:
# cat /etc/issue
CentOS release 6.9 (Final)
DNSSEC system requirements are not met: it can be installed on the following operating systems only: Debian 8, Ubuntu 14.04, Ubuntu 16.04, CentOS 7, RedHat Enterprise Linux 7, CloudLinux 7, Virtuozzo Linux 7.
Migrate to a server with operating system that supports DNSSEC.