Name_Service - Name Service What is it? Why do we need it?...

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Name Service What is it? Why do we need it? -- by Dijiang Huang
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Domain name vs IP address IP Addresses Machine Friendly 149.169.226.239 Domain Names User Friendly Hierarchical Canonical name: en4028086.eas.asu.edu Alias: dj.eas.asu.edu
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IP Addresses Classful IP Addresses Flat Address Space Address offers no information about location CIDR Combination of flat and hierarchical space CIDR blocks assigned as flat address space CIDR subblocks are within geography of CIDR block owner.
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Name Domains Functional domains .com, .edu, .gov, .net, .tv, .etc Geographic domains .fr, .uk, .us, etc. .ks, .mo, .nb, .ca, etc.
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Host Names Namespace is defined much like UNIX filespace root usr etc bin lib sbin crond gpm atd
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Host Namespace root edu net com ua asu fulton W.P law Hierarchical etc etc
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Definition A distributed database that manages the assignment of domain names to IP addresses. Components
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Name_Service - Name Service What is it? Why do we need it?...

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