I applied the latest CentOS updates, as usual. It included a kernel update, so I rebooted the system: $ sudo yum update -y $ sudo reboot After reboot, ipactl showed that FreeIPA was not running: $ sudo ipactl status Directory Service: STOPPED Directory Service must be running in order to obtain status of other services … Continue reading ipa-server-upgrade: IPv6 stack is enabled in the kernel but there is no interface that has ::1 address assigned