Hi, once again I have a question. Is it possible to restrict DNS queries within ISPConfig? As far as I know, it is possible to do that with allow-query { "XXXXXXXX"; }; within the zone options (/etc/bind/named.conf.local). But if I would do it manualy, isp would overwrite it the next time I update the zone by adding subdomains etc.. Thanks in advance.
You can restrict access globally in named.conf.options file. Restricting a single zone is not possible without being overwritten.