PPT-1 DNS and the Web

EE122 Fall 2011 Scott Shenker http insteecsberkeleyedu ee122 Materials with thanks to Jennifer Rexford Ion Stoica Vern Paxson and other colleagues at Princeton and UC Berkeley. 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. Vijay Tinnanur & Jonathan Tuliani. Azure Networking. BRK3473. Agenda . Context. DNS . services in Azure. Introducing Azure DNS . Azure DNS Deep Dive. Demo . Context. Why DNS ?. Where is . www.contoso.com. Threats. Efficient IP Company Overview. Americas Headquarters - West Chester, Pennsylvania. European Headquarters - Paris, France. First Commercial . R. elease 1998. Branded EfficientIP In 2004 – Innovative DDI Software Company. domainfest.asia. . 20 Sep 2016 Hong Kong richard.lamb@icann.org. What’s all this I hear about the Internet of Things?. (A recent visit to CES in Las Vegas). BS or Not BS?. Does it matter?. Where do “WE” fit in?. . 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 . 1. Fundamental Problems of . Network Security. Internet was designed without security in mind. Initial design focused more on how to make it work, than on how to prevent abuses. Initial environment mostly consisted of research institutions---assumption on the benign behaviors of users. 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. Sylvia Ratnasamy. http://inst.eecs.berkeley.edu/~ee122. /. Material thanks to Ion . Stoica. , Scott . Shenker. , Jennifer Rexford, Nick . McKeown. , and many other colleagues. Announcements. Project 3 out on Wednesday, Oct 30. 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!. 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”. Making Windows DNS Server Cloud Ready. ~Kumar Ashutosh, Microsoft. Windows DNS Server. Widely deployed in enterprises . Fair presence in the DNS resolver . space. Standards compliant and interoperable. Geoff Huston. APNIC. The Internet’s routing system works by rumour. “I tell you what I know, and you tell your mates, and your mates tell their mates, and …”. But what if I tell you a lie? . Or someone maliciously alters what I’m trying to tell you?. EE122 Discussion. 10/19/2011. DNS. Mapping between names (e.g., www.cnn.com) and addresses (e.g., 157.166.255.18). Hierarchy of DNS servers. Root servers. Top-level domain (TLD) servers. Authoritative DNS servers. Huston. APNIC. February 2014. The E. volution of Evil. It used to be that . they sent . evil packets to . their . chosen . victim. but this exposed the attacker, and limited the damage they could cause.