October 2013 Archive


1169
DNS -The Internets Directory Service
DNS -The Internets Directory Service

We human beings can be recognized in many ways. For instance, we can be recognized by the names that appear on our birth certificates. We can be recognized by our social security numbers. We can be recognized by our driver's license numbers. Though each of these identifiers

Tags canonical hostname, hierarchical structure, dns servers, routers, internet applications, end system
2202
Overview of How DNS Works
Overview of How DNS Works

We now present a high-level overview of how DNS works. Our discussion will focus on the hostname-to-IP-address translation service. Assume that some application (such as a Web browser or a mail reader) running in a user's host needs to translate a hostname to an IP address. The application will invoke the client side of DNS, specifying the hostname that needs to be translated. (On many UNIX-based

Tags centralized database, iterative queries, distributed database, dns server, recursive queries
1823
DNS Records and Messages
DNS Records and Messages

The DNS servers that collectively implement the DNS distributed database store resource records (RRs), including RRs that provide hostname-to-IP address mappings. Each DNS reply message carries one or more resource records. In this and the following subsection, we

Tags resource records, dns servers, hostname, dns messages, mail server, nslookup program
1217
Inserting Records into the DNS Database
Inserting Records into the DNS Database

The discussion in the last article focused on how records are retrieved from the DNS database. You might be wondering how records get into the database in the first place. Let's see how this is done in the context of a particular example. Assume you have just created an exciting

Tags dns database, registrar, dns server, ip address, ip datagrams
2028
Peer-to-Peer Applications
Peer-to-Peer Applications

The applications explained in this section so far - including the Web, e-mail, and DNS - all employ client-server architectures with significant reliance on always-on infrastructure servers. Recall from Network Application Architectures that with a P2P architecture, there is minimal (or

Tags peers, service provider, download rate, distribution time, internet core
Page 1 of 1 Previous 1 Next

Copy Right

The contents available on this website are copyrighted by TechPlus unless otherwise indicated. All rights are reserved by TechPlus, and content may not be reproduced, published, or transferred in any form or by any means, except with the prior written permission of TechPlus.