PPT-Routing Security and DNS Services

Geoff Huston APNIC The Internets 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 Im trying to tell you. EE122 Fall 2011. Scott Shenker. http://. inst.eecs.berkeley.edu. /~ee122/. Materials with thanks to Jennifer Rexford, Ion . Stoica. , Vern . Paxson. and other colleagues at Princeton and UC Berkeley. CS 3516 – Computer Networks. Protocol. What does a network protocol do?. Protocol. What does a network protocol do?. 1) define format. 2) order of . msgs. sent and received among network entities. Magda El Zarki. Prof. of CS. Univ. of CA, Irvine. Email: . elzarki@uci.edu. http: . www.ics.uci.edu. /~. magda. Network Address . Translation - NAT. 3. Private Network. Private IP . network is an IP network that is not directly connected to the Internet. 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. Greg . Rattray. Chief Internet Security Advisor. The Internet as an Ecosystem. Built as experiment; now part of everyday life. Assumed benign, cooperative users. Now involves a wide variety of systems,. 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!. . 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 . Addressing routing scalability issues. NSF Ignite Project . 1. Routing protocol challenges . All Routing . P. rotocols face. S. calability issues – dependency on network size. Flooding on information changes. 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. . some basic vulnerabilities. Dan Boneh. CS 155. Backbone. ISP. ISP. Internet Infrastructure. Local and . interdomain. routing. TCP/IP for . routing. . and messaging. BGP for routing announcements. Routing Distance Vector (DV) Routing Sets up minimum distance routes to all nodes in a network Routing tables created at each node with following fields: The core algorithm is based on ‘ Bellman Ford shortest path algorithm 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 . 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. 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.