How aliases are used in DNS, Computer Engineering

Assignment Help:

How aliases are used in DNS? Explain.

CNAME entries are analogous to a symbolic link in a file system- the entry gives an alias for other DNS entry. Corporation of expertsmind has two computers named as hobbes.expertsmind.com and calvin. expertsmind.com. Assume that expertsmind choose to run a web server and needs to follow the convention of using the name www for the computer which runs the organization's Web server. Though, the organizations could select to rename one of their computers, a much easier solution exists: the organization can create a CNAME entry for www.expertsmind.com which points to hobbes. At any time a resolver sends a request for www. expertsmind.com , the server returns the address of computer hobbes.

The utilization of aliases is particularly convenient since it permits an organization to modify the computer used for a special service without changing the addresses or names of the computers. For illustration expertsmind Corporation can move its web service from computer hobbes to computer calvin through moving the server and changing the CNAME record into the DNS server- the two computers retain their original IP addresses and names.


Related Discussions:- How aliases are used in DNS

Invariant of the class, What are the conditions that have to be met for a c...

What are the conditions that have to be met for a condition to be an invariant of the class? Ans) ? The condition should hold at the end of each constructor. ? The conditi

How many flip-flops are required to construct mod 30 counter, How many flip...

How many flip-flops are required to construct mod 30 counter ? Ans. Mod - 30 counter +/- requires 5 Flip-Flop as 30 5 . Mod - N counter counts overall ' N ' number of state

Eme, state function and path function

state function and path function

Show the fundamental process of instruction execution, Q. Show the fundamen...

Q. Show the fundamental process of instruction execution? The fundamental process of instruction execution is:  1. Instruction is fetched from memory to CPU registers (calle

Measure of speed in page or line printer, Q. Measure of speed in Page or li...

Q. Measure of speed in Page or line Printer? Measure of speed relies on whether the printer is a Page Printer or Line. Printer: Let's understand these:  Line Printer:

Define memory management system, Define memory management system? The p...

Define memory management system? The part of the computer system that supervises the flow of information among auxiliary memory and main memory is known as memory management sy

Explain the e-cheques verses credit cards in brief, Explain the E-cheques v...

Explain the E-cheques verses Credit Cards in brief. E-cheques: E-cheques are utilized for business dealing into e-commerce. Transactions of such cheques take place onto Inter

Explain busy hour calling rate in telephone traffic, With reference to tele...

With reference to telephone traffic, explain the terms BHCR. BHCR: Busy hour calling rate is explained as the average number of calls originated through a subscriber througho

Multi-layer artificial neural networks, Multi-Layer Artificial Neural Netwo...

Multi-Layer Artificial Neural Networks - Artificial intelligence: Now we can look at more sophisticated ANNs, which are known multi-layer artificial neural networks because the

Explain about magnetic disk, Q. Explain about Magnetic Disk? A disk is ...

Q. Explain about Magnetic Disk? A disk is circular platter constructed of nonmagnetic material known as substrate, coated with a magnetisable material. This is used for storing

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd