PPT-1 Improved DNS Server Selection for Multi-Homed Nodes

draftsavolainenmifdnsserverselection04 Teemu Savolainen Nokia Junya Kato NTT MIF WG meeting IETF79 11Nov2010 Related MIF milestone 1 DNS server selection solution a specification for describing a way for a network to communicate to nodes information required to perform advanced DNS server selection at name resolution request granularity in scenarios involving multiple namespaces The specification shall describe the information to be delivered for nodes and the protocol to be used for delivery. 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. 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: . . 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 . APNIC. https://. xkcd.com. /1361/. Why?. Because everything you do on the net starts with a call to the DNS. If we could see your stream of queries in real time we could assemble a detailed profile of you and interests and activities. APNIC. https://. xkcd.com. /1361/. Why?. Because everything you do on the net starts with a call to the DNS. If we could see your stream of queries in real time we could assemble a detailed profile of you and interests and activities. Shenker. and John . Jannotti. Rodrigo Fonseca. Administrivia. Thursday: . TCP Milestone II. HW3 Out. Midterm back early next week. This week: application layer (DNS, Web). We know how to open TCP connections to a server/port:. draft-psarkar. -rtgwg-multihomed-prefix-lfa-00. Pushpasis. . Sarkar. . psarkar. @. juniper.net. Shraddha. . Hegde. . shraddha. @. juniper.net. Hannes. Gredler . hannes@juniper.net. Chris Bowers . 1 Abstract — Internet infrastructure. In recent times there have been numerous attacks on DNS, the Kaminsky attack being one of the more insidious ones . Current solutions to the problem involve Causes of Vulnerabilities. Configuration errors. Architecture mistakes. Vulnerable software implementations. Protocol weaknesses. Failure to use the security extensions in the protocol. DNS Architecture Mistakes. 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. DNS Hierarchy. Resolution. Readings. Tannenbaum and van Steen:4.1. Coulouris: 9.1-9.4. Hostnames. IP Addresses are great for computers. IP address includes information used for routing.. IP addresses are difficult for humans to remember.. 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. . Network . Programming: . UDP,. . TCP. Th. is. . deck. . of. . slides. are heavily based on CPSC 433/533 at Yale University, by courtesy of Dr. Y. Richard Yang. . Qiao. . Xiang. ,. . Congming. Highlights. Ignacio Reguero . Naredo and Lorena Lobato Pardavila. CHEP 2016. . Octo. ber 10-14 . 2016. 1. CHEP 2016 October 10-14 2016 DNS Load Balancing in the CERN Cloud Highlights. DNS Load Balancing is Cost Effective.