The Design And Implemention Of High Availability Engine Of URL Classfication

With the rapid development of Internet and more sophisticated technologies of computers, along with lower prices of network traffic and the enhanced value of network applications, many people are increasingly interested in the Internet, as a the result of the explosive growth of data networks, there has also been a large number of malicious messages and spam, it is very important to classify information and take appropriate these strategies, it not only reduce network costs of users and enterprises, but also allows users from the network malicious attacks.People usually access information through the URL to the network, so we can solve the problems of information classification incase of classified by the URL, and then they can appropriate treatment strategies according to classification of the network when the information through the network device. Therefore, classification and provide the URL query classification become a research hotspot.URL query classification is mainly classified by constructing a library, and then design a URL query server, which generally used in combination with network filtering equipment, when a user visits an URL through the device, which extracts the URL and queries to the server,after the query server queries by classification, it will return the classification results to the classification of filtration equipment, filtration equipment can take different policy actions through classification type of the URL. Because there will be a lot of network traffic through the filtering device every second, so there will be a lot of URL query request, the query server must be able to promptly deal with and respond to these queries, so we need to provide efficient and highly available services in order to achieve system’s requirements.Based on Linux Dual hot standby、database replication load balancing, the thesis designs and realizes a high availability of URL categorization query system, the main work are the following:First:Study and analyze the classification of network information,analysis the categorization query of URL,design the system architect-ure of high availability URL classification query system.Second:Study and analyze the characteristics of URL classification information to design and build a database to store information of the URL.Third:Design and implementation of URL classification query sy-stem management modules and function modules.Fourth:Set up and deploy the structure of the entire system,and test the system function and integration of related modules.