I manage a server without a cpanel, I installed Webmin on it. And under Bind settings I have these zones:
"Root zone"
"0"
"0000::1"
"127.0.0.1"
"mydomain.com"
"localhost"
"localhost.localdomain"
I am wondering if is safe to remove these zones and only leave "root zone" and "mydomain.com". I am not sure why they are there but on another server I only have these two left and seems to work ok.