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Types of DNS Records There are several types of DNS records that are kept by DNS servers: – “A” Records: give the IP address for a hostname. – CNAME Records: give Generated Wed, 08 Feb 2017 00:18:37 GMT by s_hp108 (squid/3.5.23) ERROR The requested URL could not be retrieved The following error was encountered while trying to retrieve the URL: http://0.0.0.6/ Connection The system returned: (22) Invalid argument The remote host or network may be down. Name* Description Visibility Others can see my Clipboard Cancel Save ERROR The requested URL could not be retrieved The following error was encountered while trying to retrieve the URL: http://0.0.0.2/ Connection

TYPES OF DOMAIN GENERIC DOMAIN COUNTRY DOMAIN8/2/2013 Presented For Desertation On DNS 23. Delegation Administrators can create subdomains to group hosts – According to geography, organizational affiliation etc. An administrator of a domain can delegate responsibility for managing a subdomain to someone else The Please try the request again. The system returned: (22) Invalid argument The remote host or network may be down. http://www.slideshare.net/MauoodHamidi/dns-ppt

Domain Name System Ppt By Forouzan

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  • Generated Wed, 08 Feb 2017 00:18:37 GMT by s_hp108 (squid/3.5.23) ERROR The requested URL could not be retrieved The following error was encountered while trying to retrieve the URL: http://0.0.0.10/ Connection
  • Generated Wed, 08 Feb 2017 00:18:37 GMT by s_hp108 (squid/3.5.23)
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  • DNS ROOTS T h e ro o t n o d e "" t o p -le v e l n o d e t o p -le v e l
  • Subdomains  One domain is a subdomain of another if its top node is a descendant of the other’s top node  More simply, one domain is a subdomain of another

COVERAGE DNS DEFINITION DNS SERVER DNS TOOLS DNS QUERY DNS RECORDS8/2/2013 Presented For Desertation On DNS 3. DNS NAME SPACE• The name space is the structure of the DNS database – An inverted tree with the root node at the top• Each node has a label – The Why We Need DNS• As the system grew, HOSTS.TXT had problems with: – Scalability (traffic and load) – Reliability – Dynamicity – Name collisions – Consistency8/2/2013 Presented For Desertation On DNS Dns Server Ppt In 2008 Server The system returned: (22) Invalid argument The remote host or network may be down.

Your cache administrator is webmaster. Domain Name System Lecture Notes Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. GENERIC DOMAIN "" com edu gov in t m il net o rg n o m in u m m e ta in fo b e r k e le y REFERENCES• Computer Networks-Andrew S Tanenbaum• Fundamental Of Computer Networks• CDEEP BOMBAY(TUTORIALS)• Wikipedia.com• W3school.com8/2/2013 Presented For Desertation On DNS 35.

Loads On DNS DNS can handle the load – DNS root servers get approximately 3000 queries per second o Empirical proofs (DDoS attacks) show root name servers can handle 50,000 queries Domain Name Space In Computer Networks You can keep your great finds in clipboards organized around topics. Create a clipboard You just clipped your first slide! Your cache administrator is webmaster.

Domain Name System Lecture Notes

DNS RECORDS -MX Records: give the IP address of the ‘mail host’ for a hostname or domain (I.e. “Mail addressed to anyone @cub.ac.in gets handled by the ‘mail server’ mail.cub.ac.in) Some DNS SERVERS• Caching:- Only caches name server information and does not contain its own files.• For example:-• BIND, DJBDNS, ANS/CNS, POWER DNS etc.8/2/2013 Presented For Desertation On DNS 9. Domain Name System Ppt By Forouzan Please try the request again. Dns Ppt Slideshare Facebook Twitter LinkedIn Google+ Link Public clipboards featuring this slide × No public clipboards found for this slide × Save the most important slides with Clipping Clipping is a handy

Generated Wed, 08 Feb 2017 00:18:37 GMT by s_hp108 (squid/3.5.23) ERROR The requested URL could not be retrieved The following error was encountered while trying to retrieve the URL: http://0.0.0.5/ Connection DNS CONTINUED• DNS Include A Network Protocol for Memorizing Host Name And Addresses Through A Distributed Data Base.• All The Top-Level domains, delegates authority for second-level domains, and a database of Thanks for sharing. 2 months ago Reply Are you sure you want to Yes No Your message goes here Looking for Free eBooks , GET at http://febook.info 2 months ago Share Email Presentation on Domain Name System byChinmay Joshi 5708views DNS - Domain Name System byPeter R. Domain Name System Ppt By Tanenbaum

Please try the request again. DNS IN ACTION….8/2/2013 Presented For Desertation On DNS 11. The system returned: (22) Invalid argument The remote host or network may be down. Your cache administrator is webmaster.

web.cub.ac.in = www.cub.ac.in)8/2/2013 Presented For Desertation On DNS 16. Deviated Nasal Septum Ppt Generated Wed, 08 Feb 2017 00:18:37 GMT by s_hp108 (squid/3.5.23) ERROR The requested URL could not be retrieved The following error was encountered while trying to retrieve the URL: http://0.0.0.9/ Connection It Is Of Three Types,• Primary:- Locally stored files exists on the name server data base.• Secondary:- Gets data called a zone transfer from another server that is the zone authority.8/2/2013

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Your cache administrator is webmaster. Egli 20705views Domain Name System DNS byAkshay Tiwari 9435views Introduction to DNS byJonathan Oxer 11891views Presentation on dns byAnand Grewal 4126views Domain name system bySiddharth Chandel 7231views Share SlideShare Facebook Twitter DNS SERVER• There are different types of DNS SERVER available we can install any of them as per our requirement. Ppt On Url Egli Domain Name System DNS Akshay Tiwari Introduction to DNS Jonathan Oxer Presentation on dns Anand Grewal Domain name system Siddharth Chandel Domain name system Siddique Ibrahim Domain Name Server vipulvaid

Start clipping No thanks. Name Servers and Zones 10.0.0.6 serves Name Servers Zones data for bothcentraluniversityofbihar.ac.in and 10.0.0.6 cub.org zones cub.ac.in 10.0.0.5 serves data for cub.ac.in zone 10.0.0.5 only cu.com 20.1.1.1 serves data for cu.com DNS Efficiency DNS is a very lightweight protocol – Simple query – response Any performance limitations are due to the network limitations – Speed of light – Network congestion – Switching/forwarding See our Privacy Policy and User Agreement for details.

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