add dns support

config/config_template.toml

@@ -1,12 +1,31 @@
 [server]
-addr = "127.0.0.1"
+public_addr = "my_domain.com"
+listening_addr = "127.0.0.1"
 port = 8080
+
 [docker]
 connection = "unix_default"
 string = "http://my-custom-docker-server:2735"
 timeout = 60
 network_name = "customnetwork"
 network_addr = "172.20.0.0/24"
+
 [mrproxy]
 connection = "tcp"
 string = "127.0.0.1:25564"
+[zone]
+root_domain = "root.domain.example"
+
+[[dns_server]]
+connection_str = "tcp://127.0.0.1:53"
+
+[dns_server.key]
+name = "key 0 name"
+value = "key 0 in base64"
+
+[[dns_server]]
+connection_str = "udp://192.168.1.1:53"
+
+[dns_server.key]
+name = "key 1 name"
+value = "key 1 in base64"