1. INTRANET & DNS Submitted To:- Ms. AmandeepKaur Submitted By:- NitikaSingla ShivaniSingla 1

2. What is intranet? Why we use it? Technology behind it…. Advantages Disadvantages Intranet Vs Internet Intranet Vs Extranet 2 Table of contents:-

3. What is DNS? Services provide by DNS Elements Advantages Video 3 Cont……

5. Why Intranets? Improved internal communication Improved access to information Improved productivity Promote user participation Improved management

6. One or more inter-connected TCP/IP networks Internet connectivity with firewall protection Servers: Web, E-Mail, Proxy, DNS Browsers, plug-ins, authoring tools Databases, search engines Website administration tools Technology behind Intranets

7. Example… Integration Shared Data Intranet Internet Firewall PCs Servers

8. Advantages Platform Independent Ease of publishing Easier to setup Ease of use Maintenance is very easy Cost effective Information retrieval is timely manner.

9. Disadvantages Security Concerns Intranet may cause information overload

10. Intranet VS Internet Internet External websites E-Commerce Insecure TCP/IP Limited management Intranet Internal websites Commutation & Information access Secure TCP/IP Managed

11. 11 INTRANET

12. Internet,Intranet & Extranet The relationship between access to intranets, extranets and the Internet

13. DNS is a distributed hierarchical naming system for computers, services, or any resource connected to the Internet or a private network. The entry in database file is DNS resourse record. 13 What is DNS?

14. Mapping from names to addresses(server to client) Mechanism to store and retrieve information in a global data store. 14 DNS Provides:

15. 15 DNS Elements Resolver:- The client-side of the DNS is called a DNS resolver Server:- Where sender send the request for query.

16. 16 DNS Operations

17. It's More Reliable. It's Faster. It's Smarter It's Safer. 17 Advantages

18. Conclusion

19. THANKU…..

20. 20 Any Questions?  …….