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    • 58. 发明专利
    • Communications device and network connection management program
    • 通信设备和网络连接管理程序
    • JP2009044230A
    • 2009-02-26
    • JP2007204349
    • 2007-08-06
    • Toshiba Corp株式会社東芝
    • TAJIMA TAKESHI
    • H04L12/66G06F13/00H04L12/70
    • H04L63/1441H04L63/0227
    • PROBLEM TO BE SOLVED: To provide a communications device of which a security level is improved by eliminating the risk of connection to an unsecured network, and to provide a network connection management program. SOLUTION: A computer 1 includes a port closing means which closes all ports except a port required for acquisition of the address of an external device which is the other party of communication via networks; an address acquisition means which uses the port required for acquisition of the address of the external device to acquire the address of the external device; a discrimination means for discriminating whether the networks are appropriate, by using the address acquired by the address acquisition means after closing the ports; and a network connection management means which performs a control such that the ports for use in connection to networks being discriminated to be appropriate by the discrimination means are opened, and the connections to the networks discriminated as being not appropriate by the discrimination means are disconnected. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供一种通过消除与不安全网络的连接的风险来提高安全级别并提供网络连接管理程序的通信设备。 解决方案:计算机1包括端口关闭装置,其关闭除了通过网络获取通信对方的外部设备的地址所需的端口之外的所有端口; 地址获取装置,其使用获取外部设备的地址所需的端口来获取外部设备的地址; 通过在关闭端口之后使用由地址获取装置获取的地址来鉴别网络是否合适的鉴别装置; 以及网络连接管理装置,其进行控制,使得与通过鉴别装置判断为适合的网络连接的端口被断开,并且与所述鉴别装置识别为不适合的所述网络的连接被断开。 版权所有(C)2009,JPO&INPIT