error: 'allow-update' is not allowed in 'slave' zone

Hello, I configured Bind 9.18.12 as slave DDNS with dynamic updates from DHCP (ISC DHCP 4.4) running on the same server (Ubuntu 22.04 server) When I run "named-checkconf named.conf", I get the following error "named.conf:2018: option 'allow-update' is not allowed in 'slave' zone 'zonename.com

Re: dnssec-key 'unknown algorithm RSASHA512'

Hello, Bind version - 9.18.12 -->This is the command I used for generating dnssec-keygen keys - root@dhcpt: /etc/bind# dnssec-keygen -a ECDSAP256SHA256 -n ZONE example.com Kexample.com.+013+43215.key Kexample.com.+013+43215.private root@dhcpt:/etc/bind# cat Kexample.com.+013+43215.private Privat