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Showing posts with the label DNS and it's Services in Computer Network

Graphic design python turtle 🐢

By Kajal Vishwakarma -
from turtle import * import colorsys bgcolor('black') pensize(0) tracer(50) h=0 for i in range(300): c=colorsys.hsv_to_rgb(h,1,1) h+=0.9 color(c) forward(300) left(100) fd(i) goto(0,0) down() rt(90) begin_fill() circle(0) end_fill() rt(10) for j in range(5): rt(30) done() Please follow my blog and subscribe my channel for more videos and newly updates 👍👍👍👍👍 import turtle as t import colorsys t.bgcolor('black') t.tracer(100) h=0.4 def draw(ang,n): t.circle(5+n,60) t.left(ang) t.circle(5+n,60) for i in range(200): c=colorsys.hsv_to_rgb(h,1,1) h+=0.005 t.color(c) t.pensize(2) draw(90,i*2) draw(120,i*2.5) draw()
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DNS and it's Services

By Kajal Vishwakarma -
What is DNS? The essence of DNS is the invention of a hierarchical, domain-based naming scheme and a distributed database system for implementing the naming scheme. The primary use of DNS is for mapping host names and email destination to IP addresses but can also be used for other purposes. The DNS is a distributed database. It is used by TCP/IP application. We use the term distributed because no single site on the internet knows all the information. Each site maintains its own database of information and runs a server program that other system across the internet can query. The DNS provides the protocols that allow client and server to communicate with each other. Services Provided by the DNS:- There are several services provided by DNS-  1) Host Aliasing:-  A host with a complicated hostname can have one or more aliss names. 2) Mail Serve Aliasing:- DNS can be involved by a mail application to obtain the hostname for a supplied alias hostname as well as the IP address of the host. 3
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