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- Title
Fast backup and recovery for web protection using trigger and block hash approach.
- Authors
Qian Hea; Ning Zhang; Jinshu Su; Yong Wang
- Abstract
A web protection system (WPS) has become more and more important as attacks on websites increase. One of the important components in a WPS is the backup and recovery facility which is used to restore web files in an event of an attack. How to facilitate the backup and recovery procedure efficiently is an important research topic. This paper specifies the requirements for a secure and efficient distributed WPS, and presents the design of a novel Fast Backup and Recovery System (F-BRS) based on the requirements. The redundant backup data model describes how to transmit and store the backup data efficiently under a sequence of data versions. The filter driver based trigger, local snapshot tree and block hash based transmission are three key technologies of F-BRS. The filter driver based trigger embedded in the protected web server to real-time monitor any changes in a web file. Should a change is identified, the legitimacy of the change is evaluated and a remote backup procedure is triggered accordingly. The local snapshot tree backs up and restores web files locally and fast. The key web pages secure accessing is realized on the snapshot tree. Considering automatic trigger and administrator manually commanded modes, the block hash based transmission selects these exactly modified data blocks to be compressed into a temp file, and then to transmit, which reduces the redundant backup data well. The experimental results show that F-BRS can be invoked in real time and backs up faster than the traditional method. Similarly, the affection of data compression is discussed in F-BRS.
- Subjects
WEBSITE security; CYBERTERRORISM; COUNTERTERRORISM; DATA recovery; DATA compression; INTERNET servers
- Publication
Computer Systems Science & Engineering, 2017, Vol 32, Issue 2, p137
- ISSN
0267-6192
- Publication type
Article