show service dns forwarding options
 
# vagy
 
mca-ctrl -t dump-cfg

set service dns forwarding options host-record=server,192.168.0.10

delete service dns forwarding options host-record=server,192.168.0.10

config.gateway.json

{
  "service": {
    "dns": {
      "forwarding": {
        "options": [
          "ptr-record=1.155.168.192.in-addr.arpa,SecurityGateway",
          "host-record=unifi,192.168.155.50",
          "host-record=server,192.168.0.10"
        ]
      }
    }
  }
}