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With the improvement of network bandwidth , the Internet , store countless files , part is stored on the FTP server . FTP protocol FTP search engine , it can greatly improve the FTP file search speed , accuracy , improve search efficiency . In this paper, a detailed analysis of the working mechanism of the FTP protocol , FTP search engine mechanism , analysis of the current state of progress of FTP search engine , setting the desired objectives and content . FTP search engine performance . According to the system design requirements , design a Web-based interface provides a flexible query . The system consists of four modules , the basic system data input and output interface , string matching algorithm , the central query server , and each module design ideas described . Then given in detail the various modules in the system design and implementation related data structures and file attribute filter function of the query results , which are rich in the functionality of the search engine , to some extent, improve the accuracy and precision of retrieval , to Prospects of a search engine 's performance . Finally, the research topic analysis outlook , pointed out that the search engine several major issues that need to be improved , such as the file is too large, need to be closed when the data is updated search engine, the system needs big issues such as consumption .
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