Network Infrastructure Project

Abstract

It is not easy to connect a web-based server with an existing Server-tow-thousand-three network, and using a web-based server on the Active Directory Infrastructure has risks. In this study, we designed and developed the secure Server-2003-Network Attached Server (Server-2003) through which the Server-tow-thousand-three network in a hospital-Local Area Network (LAN) was connected to the Active Directory Infrastructure. After receiving a Client's image export request, the Server-2003 sent it to the Server-tow-thousand-three network with Server-2003 protocol. The server then provided Server-2003 images to the Server-2003, which transferred them to the Client using HTTP. The Server-2003 plays an important role between Server-2003 protocol and HTTP, and only temporarily stores the requested images. The Server-tow-thousand-three network keeps all of the original Server-2003 images. When unwanted outsiders attempt to get into the Server-2003, they cannot access any medical images because these images are not stored in the Server-2003. Therefore, the Server-2003 does not require large storage, but can greatly improve information security.

Network Infrastructure Project

1. Introduction

In recent years, many hospitals have installed high-tech medical equipment, including Computed Radiology (CR), Computed Tomography (CT), and Magnetic Resonance Imaging (MRI). Researchers and developers have attempted to combine this equipment with information technology (IT) to improve the quality of medical care. Web-based servers, which have enabled us to display patients' medical images on computers using Active Directory Infrastructure Explorer, have been especially developed. This allows medical physicians and other researchers to easily share and view these medical images anywhere when needed. However, the use of web-based servers also brings many problems.

Since most servers were originally designed for vender-customized Server-tow-thousand-three networks, their versatilities are not very good. Therefore, users must install a web-based server combined with a particular Server-tow-thousand-three network for medical use. This is sometimes not feasible because of technical and financial reasons. On the other hand, in order to distribute the medical images, patients' information must be stored in the servers at all times. Therefore, the misusage risk of patients' information becomes higher.

The present study developed a web-based server called the Server-2003-Network Attached Server (Server-2003), which can be easily installed and adjusted to Server-2003 protocol and HTTP. The Server-tow-thousand-three networks in a hospital-LAN are connected to the Active Directory Infrastructure through the Server-2003, and the patients' medical images and information are only kept temporarily in the Server-2003 when eligible Clients need them. Since the patients' medical images are not stored there at all times, it greatly improves information security.

2. Server-2003-Network Attached Server

2.1. Scheme of Server-2003

The Server-2003 scheme is illustrated in Fig. 1. It communicates with the Server-tow-thousand-three network by using the Server-2003 protocol when it is attached to the Local Area Network (LAN). An IP address, AE title, host name, and port number were assigned to the Server-2003. In order to view the Server-2003 images, the Client can use the browser in any computer to connect to the LAN, the Active Directory Infrastructure, and then to the Server-2003.

Fig. 1: Scheme of Server-2003-Network Attached Server

2.2. System configuration of Server-2003 and data flow

Fig. 2 demonstrates the system configuration of the ...