[Freeipa-users] New IPA server

I am building out a new IPA server environment and I am getting the following error: [user@freeipa001 ~]$ sudo ipa-server-install --setup-dns --setup-kra --setup-adtrust --auto-reverse --ssh-trust-dns --auto-forwarders --allow-zone-overlap IPv6 stack has to be enabled in the kernel and some interface has to have ::1 address assigned. Typically this is 'lo' interface. If you do not wish to use IPv6 globally, disable it on the specific interfaces in sysctl.conf except 'lo' interface. The ipa-server-install command failed. See /var/log/ipaserver-install.log for more information [user@freeipa001 ~]$ [root@freeipa001 ~]# sudo sysctl -w net.ipv6.conf.lo.disable_ipv6=0 sysctl: cannot stat /proc/sys/net/ipv6/conf/lo/disable_ipv6: No such file or directory [root@freeipa001 ~]# I am using the latest CentOS 8