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热词
    • 1. 发明授权
    • DDNS server, a DDNS client terminal and a DDNS system, and a web server terminal, its network system and an access control method
    • DDNS服务器,DDNS客户端和DDNS系统,以及Web服务器终端,其网络系统和访问控制方法
    • US07529810B2
    • 2009-05-05
    • US10390238
    • 2003-03-17
    • Hironori GotoAkihiro NawataMichihiro Muta
    • Hironori GotoAkihiro NawataMichihiro Muta
    • G06F15/16
    • H04L29/12047H04L29/12009H04L29/12207H04L61/15H04L61/20
    • The present invention aims at providing a DDNS server, a DDNS client terminal and a DDNS system which maintains high security while using DHCP and allows an access to terminals having the same IP address as well as data updates. The DDNS server includes a terminal management table storing the domain name, global IP address and port number of a DDNS client terminal, characterized in that the terminal management section checks whether a same global IP address is present in the terminal management table when a request to overwrite a global IP address is made from a DDNS client terminal and, in case the same global IP address is absent, permits overwriting of the global IP address, and in case the same global IP address is present, checks the port number, and in case the same port number is detected, inhibits overwriting of the global IP address, and in case the port number is different, permits overwriting of the global IP address.
    • 本发明旨在提供一种DDNS服务器,DDNS客户终端和DDNS系统,其在使用DHCP时保持高安全性并允许对具有相同IP地址的终端以及数据更新的访问。 DDNS服务器包括存储DDNS客户终端的域名,全局IP地址和端口号的终端管理表,其特征在于终端管理部检查在终端管理表中是否存在相同的全局IP地址 覆盖全局IP地址是从DDNS客户终端进行的,如果不存在相同的全局IP地址,则允许覆盖全局IP地址,并且在存在相同的全局IP地址的情况下,检查端口号,并在 情况下检测到相同的端口号,禁止覆盖全局IP地址,并且在端口号不同的情况下,允许覆盖全局IP地址。