how do I setup a slave DNS service in ispconfig? ( I attached a link below that explains it for cpanel but not for ispconfig) the example below is for cpanel. I want to know how to do it for ISPConfig? https://linode.com/docs/websites/cms/set-up-dns-services-on-cpanel/
Now I read the topic, which asks a different question. I think ask Linode how their name servers can receive zone transfers from your server. Then add Linode name server IP numbers in ISPConfig panel to Allow transfrer.