PPT-DNS Domain Name Systems

Theory 1 How DNS works Theory 2 3 How DNS Works Theory Domain names Arranged in a tree Cut into zones Each served by a nameserver 4 How DNS Works Theory Domain name space consists of a tree of domain names. DNS is the system that provides name to address mapping for the internet.. Name Space. The names assigned to machines must be unique because the addresses are unique. A name space that maps each address to a unique name can be organized in two ways: . Transfers & Domain Delegation. Title of the presentation: to change it, go to Insert/Footer. 2. What is a domain name transfer?. “A domain name transfer is the process of changing the designated registrar of a domain . DoS. Attacks. Hitesh . Ballani. , Paul Francis. 1. Outline. What is DNS?. What is the . P. roblem?. Solution. Evaluation. Conclusions. 2. Domain Name System. 3. Client. DNS Resolver. Root . Nameserver. Qurat-Ul-Ann Akbar, Northwestern U. . Marcel Flores, Northwestern U.. Aleksandar. Kuzmanovic, Northwestern U.. http://networks.cs.northwestern.edu. Internet Censorship is a prevalent problem . . Abhishek Madav(86378148). . Suhas Tikoo(22363556). . Urjit Khadilkar(24449837). Motivation. We plan to device . a heterogeneous service . that would monitor the resolution of the user’s . Yeo Deng . Jie. (DJ). July 2016. Every device, application, user, end point, relies on DNS. DNS. The importance of DNS. DNS is a . core networking service. DNS is exploited for malicious activity. IoT. IP Address Management service. DNS (Domain Name System). Authoritative DNS: publishing zones. Recursive DNS: resolving queries. DHCP (Dynamic Host Configuration Protocol). Keeping track of IP allocations. Jun Ho Huh. Research Scientist. Cybersecurity Lab. . Saurabh Verma, . Ali Hamieh, Jun Huh Ho, Siva Raj Rajagopalan, Maciej Korczynski, Nina Fefferman.. . 1. Motivation . money talks!. . 2. It’s becoming very serious!. CS 526 . Omar Chowdhury. 12/9/2015. Topic: RBAC. 1. Reading for This Lecture. Optional:. First attack by . Schuba. and . Spafford. - . http://www.openbsd.org/advisories/sni_12_resolverid.txt. An Illustrated Guide to the . WIPO Internet Domain Name Processes . (“WIPO 1” and “WIPO 2”). GIs and Country Names . at the 2nd level in . existing gTLDs . and in . ccTLDs. GIs and Country Names . at . the Top and 2nd . levels . DNS. Mechanism for IP <> hostname resolution. Globally distributed database. Hierarchical structure. Comprised of three components. A “name space”. Servers making that name space available. Directory Technical Guide June 9 , 202 1 Notices Customers are responsible for making their own independent assessment of the information in this document. This document: (a) is for informational pu Host addresses: . e.g., 169.229.131.109. a number used by protocols. conforms to network structure (. the “where”. ). Host names: . e.g., . instr.eecs.berkeley.edu. mnemonic name usable by humans. By: Dr. T V Gopal, Professor, DCSE, CEG Campus, Anna University, Chennai. e-mail: gopal@annauniv.edu; gopal.tadepalli@gmail.com. Based on my experience in teaching “Network Programming” . [with Focus on UNIX & JAVA] & Research in “Distributed Operating Systems”.