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Evaluation of zonemaster – a DNS verification tool
KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Biomedical Engineering and Health Systems, Health Informatics and Logistics.
KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Biomedical Engineering and Health Systems, Health Informatics and Logistics.
2019 (English)Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesisAlternative title
Utvärdering av zonemaster – verifieringsverktyg för DNS (Swedish)
Abstract [en]

The hierarchal distributed database, Domain Name System (DNS) provides name resolution for network applications, which is vital for the functionality of the Internet. An important part of the system design is to distribute the administration by delegation of domains. To maintain the availability of domains it is important that configuration is accurately per-formed. Zonemaster is a tool used for validating the quality of a DNS delegation by testing of misconfigurations. This thesis evaluates Zonemaster and how it relates to other DNS tools. The evaluation was conducted by identifying and designing configuration errors re-garding DNS delegation. These errors were tested by each tool. Their responses together with the extent of documentation regarding test specification was analyzed. The analyzed data was then divided into three categories: number of implemented tests, detected errors and if the test specification referred to a reliable source. The results showed that Zonemas-ter had all the tests implemented, detected and referred to 91,7% of them.

Abstract [sv]

Den hierarkiska distribuerade databasen, domännamnssystem (DNS) utför namnuppslag-ningar för nätverksapplikationer, vilket är en viktig del för Internets funktionalitet. Dess systemdesign möjliggör distribuerad administration genom delegering av domäner. För att behålla tillgängligheten av domäner är det viktigt att konfigurationen utförs korrekt. Zone-master är ett verktyg som används för att validera kvaliteten av en DNS-delegation genom att identifiera felkonfigureringar. Detta examensarbete utvärderar Zonemaster och dess re-lation till andra DNS-verktyg. Utvärderingen genomfördes genom att identifiera och ut-forma konfigurationsfel avseende DNS-delegering. Dessa fel testades av varje verktyg och deras svar, tillsammans med tillhörande testspecifikation analyserades. Analyserat data de-lades sedan in i tre kategorier: antal genomförda test, upptäckta fel och om testspecifikat-ionerna hänvisade till tillförlitliga källor. Resultaten visade att Zonemaster hade alla tester implementerade samt upptäckte och hänvisade till 91,7% av dem.

Place, publisher, year, edition, pages
2019. , p. 62
Series
TRITA-CBH-GRU ; 2019:028
Keywords [en]
DNS delegation, DNS configuration errors, Authoritative nameservers, DNS standards, DNS tool
Keywords [sv]
DNS delegering, DNS konfigurationsfel, Auktoritär namnserver, DNS standarder, DNS verktyg
National Category
Computer Engineering
Identifiers
URN: urn:nbn:se:kth:diva-252814OAI: oai:DiVA.org:kth-252814DiVA, id: diva2:1322207
Educational program
Bachelor of Science in Engineering - Computer Engineering
Supervisors
Examiners
Available from: 2019-06-10 Created: 2019-06-10 Last updated: 2019-06-10Bibliographically approved

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