How to configure DNSSEC?

Hello,

I would like to ask how to configure DNSSEC or where to get a key?

https://www.centlinux.com/2019/09/configure-dnssec-bind-dns-server-centos-7.html

when i Sign the zone using dnssec-signzone command i got this error: dnssec-signzone: fatal: failed to find an SOA at the zone apex: NXRRSET.

Log in to the Cloudflare dashboard.
Ensure the website for the DS record you need is selected.
Click the DNS app.
Scroll down to the DNSSEC panel.
Click Enable DNSSEC. ...
Next, click to expand the DS Record dropdown in the DNSSEC panel.

for more information visit us

Is this still the preferred way to configure DNSSEC on CWP 7?
https://www.centlinux.com/2019/09/configure-dnssec-bind-dns-server-centos-7.html

try this :
https://www.mysterydata.com/how-to-add-dnssec-records-in-bind-named-linux-cwp-hestiacp-ubuntu-centos/

try this :
https://www.mysterydata.com/how-to-add-dnssec-records-in-bind-named-linux-cwp-hestiacp-ubuntu-centos/

Thanks it works!