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News filtered through Compsci 82

News filtered through Compsci 82. BPG Security Hole at DefCon What is BGP? Border Gateway Protocol Should we care? About what? Malicious or Accident? Pakistan and Youtube. News Sources. http://slashdot.org/ http://www.nytimes.com http://allthingsd.com/ http://www.theregister.co.uk/.

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News filtered through Compsci 82

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  1. News filtered through Compsci 82 • BPG Security Hole at DefCon • What is BGP? • Border Gateway Protocol • Should we care? • About what? • Malicious or Accident? • Pakistan and Youtube

  2. News Sources • http://slashdot.org/ • http://www.nytimes.com • http://allthingsd.com/ • http://www.theregister.co.uk/

  3. Internet Addresses and Routing Thinkgeek.com

  4. Internet Protocol RFC 791, 1981 http://www.ietf.org/rfc/rfc791.txt The internet protocol is specifically limited in scope to provide the functions necessary to deliver a package of bits (an internet datagram) from a source to a destination over an interconnected system of networks. There are no mechanisms to augment end-to-end data reliability, flow control, sequencing, or other services commonly found in host-to-host protocols. The internet protocol can capitalize on the services of its supporting networks to provide various types and qualities of service.

  5. Internet Protocol RFC 791, 1981 http://www.ietf.org/rfc/rfc791.txt A distinction is made between names, addresses, and routes [4]. A name indicates what we seek. An address indicates where it is. A route indicates how to get there. The internet protocol deals primarily with addresses.

  6. Names, numbers, routes • www.nus.edu.sg • www.duke.edu • www.stanford.edu • www.google.cn • www.tsinghu.edu.cn • How do we find IP for each name? • How does Internet? • www.traceroute.org • visualroute.visualware.com • How does a packet know where to go?

  7. DNS Flaw, July 2008 • Kaminsky finds DNS flaw • Announces in July • Meeting in Redmond • Flaws in BIND • Open Source • Common DNS • OpenDNS • Announce, no details • Fix yes! Kaminsky Explains the Issues (wired)

  8. Pakistan shuts down Youtube • www.renesys.com • What is BGP, What is an Autonomous System? • AS • Border Gateway Protocol • Transitive Trust Model of Internet Routing • What is trust? What is Routing? • Who created BGP? • How long for the world/Youtube to notice? • How long to fix, how?

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