Segawa Katsunori, Nakano Tatsuya, Saito Yoshiro
Division of Medicinal Safety Science, National Institute of Health Sciences, 1-18-1 Kamiyoga, Setagaya-ku, Tokyo 158-8501, Japan.
Kokuritsu Iyakuhin Shokuhin Eisei Kenkyusho Hokoku. 2012(130):75-7.
Updated version of National Institute of Health Sciences Computer Network System (NIHS-NET) is described. In order to reduce its electric power consumption, the main server system was newly built using the virtual machine technology. The service that each machine provided in the previous network system should be maintained as much as possible. Thus, the individual server was constructed for each service, because a virtual server often show decrement in its performance as compared with a physical server. As a result, though the number of virtual servers was increased and the network communication became complicated among the servers, the conventional service was able to be maintained, and security level was able to be rather improved, along with saving electrical powers. The updated NIHS-NET bears multiple security countermeasures. To maximal use of these measures, awareness for the network security by all users is expected.
介绍了国立卫生科学研究所计算机网络系统（NIHS-NET）的更新版本。为了降低其电力消耗，使用虚拟机技术新建了主服务器系统。应尽可能维持先前网络系统中每台机器所提供的服务。因此，针对每项服务构建了独立的服务器，因为与物理服务器相比，虚拟服务器的性能往往会下降。结果，尽管虚拟服务器的数量增加了，服务器之间的网络通信变得复杂，但传统服务得以维持，并且在节省电力的同时，安全级别也得到了相当程度的提高。更新后的NIHS-NET具备多种安全对策。为了最大程度地利用这些措施，期望所有用户提高网络安全意识。
