@startuml

title 动态DNS

actor 访客 as User

package "服务端（公网）" as dns_server_{
     component [服务端私有网络A]{
         [mysql:(172.1.1.4:3306)] as dns_server_remote_local_
         [clickhouse:(172.1.1.5:3306)]
     }
    component [服务端私有网络B]{
      [mysql:(172.1.2.4:3306)]
      [clickhouse:(172.1.2.5:3306)]
    }

}

package "客户端（私有网络）" as dns_remote_local_{

     component [客户端私有网络A]{
         [mysql:(162.1.1.4:3306)] as dns_client_remote_local_
         [clickhouse:(162.1.1.5:3306)]
     }
    component [客户端私有网络B]{
      [mysql:(162.1.2.4:3306)]
      [clickhouse:(162.1.2.5:3306)]
    }
}


package "客户端（用户本地）" as dns_local_ {

}



note "用户本地网络" as local_net_
note "服务端网络" as server_net_
note "客户端私有网络" as remote_net_

'(User) .... local_condition_
'local_condition_ ... (target)

[User] ...right...> dns_local_: DNS连接到本地
dns_local_ ...right...> local_net_: 访问本地网络（本地DNS）
dns_local_ ...up...> dns_server_remote_local_: 远程DNS解析

dns_server_ ...up...> server_net_: server本地的网络
dns_server_ ...down...> dns_remote_local_: 访问的地址在远程的客户端中
dns_remote_local_ ...down...> dns_client_remote_local_: 远程客户端所在的私有网络
dns_remote_local_ ...down...> remote_net_: 远程客户端中的其他网络





@enduml