'Root dns server' presentation slideshows

Internet structure: network of networks

a packet passes through many networks!. Tier 3 ISP. local ISP. local ISP. local ISP. local ISP. local ISP. local ISP. local ISP. local ISP. NAP. Tier-2 ISP. Tier-2 ISP. Tier-2 ISP. Tier-2 ISP. Tier-2 ISP. Internet structure: network of networks. Tier 1 ISP. Tier 1 ISP.

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Computer Networking Lent Term M/W/F 11:00-12:00 LT1 in Gates Building Handout 4 (Topic 6)

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DNS and the Web

DNS and the Web. 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. Announcements. Midterm on Monday Closed book

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Translating Addresses Reading: Section 4.1 and 9.1

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Translating Addresses Reading: Section 4.1 and 9.1

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Translating Addresses Reading: Section 4.1 and 9.1

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DNS

DNS. DNS services Hostname to IP address translation Host aliasing Canonical and alias names Mail server aliasing Load distribution Replicated Web servers: set of IP addresses for one canonical name. DNS: Domain Name System. Root DNS Servers`. org DNS servers. edu DNS servers.

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DNS

DNS. DNS services Hostname to IP address translation Host aliasing Canonical and alias names Mail server aliasing Load distribution Replicated Web servers: set of IP addresses for one canonical name. DNS: Domain Name System. Root DNS Servers`. org DNS servers. edu DNS servers.

375 views • 25 slides

DNS

DNS. DNS services Hostname to IP address translation Host aliasing Canonical and alias names Mail server aliasing Load distribution Replicated Web servers: set of IP addresses for one canonical name. DNS: Domain Name System. Root DNS Servers`. org DNS servers. edu DNS servers.

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Domain Names

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Review: Which protocol is used to move email messages around in the Internet?

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Chapter 2 Application Layer

Chapter 2 Application Layer. 2.5 DNS. Computer Networking: A Top Down Approach 6 th edition Jim Kurose, Keith Ross Addison-Wesley March 2012. Chapter 2: outline. 2.1 principles of network applications app architectures app requirements 2.2 Web and HTTP 2.3 FTP 2.4 electronic mail

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CS 471/571

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Topics: DNS system Gathering machine information

Topics: DNS system Gathering machine information How to find out the machines ip address, name, OS, version, etc. Name/Address conversion: The mapping between hostnames and IP addresses is done by the domain name system (DNS) domain name system:

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Chapter 25 DNS (Domain Name System)

Chapter 25 DNS (Domain Name System). DNS. ??? ??? ???? ???? IP ??? ???? ??? ( ?? ??? ) ??. Domain name ? ??? ??. Domain name ? ??? ??? ?? ?????. Top-lever domain. Top-lever domain names. Domain Name Servers. Client ? root server ? com DNS server ? ??? ??? .

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The Application Layer Domain Name System

The Application Layer Domain Name System. Chapter 7. Why?. Computers are identified by a numerical IP address and provided services by a port number Humans like readable, meaningful text, easy to remember www.cs.ru.nl, jan@science.ru.nl, etc. Need for conversion between names and addresses

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