//服务器ip:
//string S_Ip = Request.ServerVariables.Get("Local_Addr").ToString();
//服务器主机名:
//string S_Name = Request.ServerVariables.Get("Server_Name").ToString();
//客户端ip:
//string C_Ip = Request.ServerVariables.Get("Remote_Addr").ToString();
//客户端主机名:
//string C_Name = Request.ServerVariables.Get("Remote_Host").ToString();