发明名称 |
Firewall based on domain names |
摘要 |
The invention is a firewall capable of blocking access to a website or other Internet node based on a domain name. A DNS request is monitored and a domain name is decoded from the DNS request. An IP address is received in a response to the DNS request. The IP address and domain name are associated with each other. The steps are executed non-intrusively with respect to traffic flow through the firewall. Afterward, a determination is made if the IP address is associated with a domain name for which access is restricted. If the domain name is a restricted domain name, access to content of the website is denied by blocking traffic flow on the basis of identifying the source IP address of data packets.
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申请公布号 |
US2008184357(A1) |
申请公布日期 |
2008.07.31 |
申请号 |
US20070657863 |
申请日期 |
2007.01.25 |
申请人 |
DRAKO DEAN M;LEVOW ZACHARY S;SHI FLEMING M |
发明人 |
DRAKO DEAN M.;LEVOW ZACHARY S.;SHI FLEMING M. |
分类号 |
G06F15/16 |
主分类号 |
G06F15/16 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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