| 基于URL的网页内容过滤器的设计与实现 |
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| 引用本文： | 周澔宇. 基于URL的网页内容过滤器的设计与实现[J]. 计算机工程, 2006, 32(7): 81-83 |
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| 作者姓名： | 周澔宇 |
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| 作者单位： | 上海交通大学软件学院,上海,200233 |
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| 摘 要： | 讨论了基于URL的网页内容过滤器的设计与实现。通过对Linux系统内核模块的分析，设计通过网络包截获、网络包过滤两个步骤进行过滤器的实现。在设计过程中，探讨并实现了URL阻挡树模型、七下层通信的技术（上下层大规模数据传输和内核主动发信号给进程的技术）和包的截获技术。
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| 关 键 词： | 网页内容过滤器 网络包截获 网络包过滤 阻挡树 |
| 文章编号： | 1000-3428（2006）07-0080-03 |
| 收稿时间： | 2005-05-05 |
| 修稿时间： | 2005-05-05 |
Design and Realization of Net Filter Based on URL |
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| ZHOU Haoyu. Design and Realization of Net Filter Based on URL[J]. Computer Engineering, 2006, 32(7): 81-83 |
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| Authors: | ZHOU Haoyu |
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| Affiliation: | School of Software, Shanghai Jiaotong University, Shanghai 200233 |
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| Abstract: | The design and realization of net filter are discussed.By analyzing the kernel of Linux system,the realization of filter is designed by these two steps: package captured and package filtered.In the process of design,the model of URL tree,the communication skill between different layers(the skill regarding the large scale data transmission between different layers and the active sending signals from kernel to process) and the skill of package captured. |
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| Keywords: | Net filter Package captured Package filtered URL tree |
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