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dc.contributor.authorMohan, Ratish
dc.date.accessioned2015-08-24T22:01:14Z
dc.date.available2015-08-24T22:01:14Z
dc.date.issued2015
dc.identifier.citationMohan, Ratish. Optimising Firewall Performance in Dynamic Networks. Master thesis, University of Oslo, 2015
dc.identifier.urihttp://hdl.handle.net/10852/45131
dc.description.abstractMore and more devices connect to the internet, this means that a lot sensitive information will be stored in various networks. In order to secure this information and manage the large amount of inevitable network traffic that these devices create, an optimised firewall is needed. In order to meet this demand, the thesis proposes two algorithms for solving the problem. The first algorithm will minimise the rule matching time by using a simple condition for performing swapping that both preserves the firewall consistency, the firewall integrity and ensures a greedy reduction of the matching time. The solution is novel in itself and can be considered as a generalisation of the algorithm proposed by Fulp in the paper 'Optimization of network firewall policies using ordered sets and directed acyclical graphs'. The second algorithm will read the network traffic and provide network statistics to the first algorithm. The solution is a novel modification of the algorithm by Oommen and Rueda in the paper 'Stochastic learning-based weak estimation of multinomial random variables and its applications to pattern recognition in non-stationary environments'. It will be shown that both algorithms, through experiments, are able to satisfy the problem of optimising a firewall.eng
dc.language.isoeng
dc.subjectFirewall
dc.subjectIPtables
dc.subjectOptimisation
dc.subjectrule
dc.subjectre
dc.subjectordering
dc.subjectweak
dc.subjectestimator
dc.subjectperformance
dc.subjectnetwork
dc.subjectdynamic
dc.subjectnetwork
dc.titleOptimising Firewall Performance in Dynamic Networkseng
dc.typeMaster thesis
dc.date.updated2015-08-24T22:01:14Z
dc.creator.authorMohan, Ratish
dc.identifier.urnURN:NBN:no-49191
dc.type.documentMasteroppgave
dc.identifier.fulltextFulltext https://www.duo.uio.no/bitstream/handle/10852/45131/1/NSA5930_Master_Thesis_Ratish_Mohan.pdf


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