در این آموزش تصویری با اصول اولیه DNS آشنا می شوید. DNS از کلمات Domain Name System اقتباس و یک پروتکل شناخته شده در عرصه شبکه های کامپیوتری خصوصا” اینترنت است . از پروتکل فوق به منظور ترجمه اسامی کامپیوترهای میزبان و Domain به آدرس های IP استفاده می گردد. زمانی که شما آدرس را در مرورگر خود تایپ می نمائید ، نام به یک آدرس IP و بر اساس یک درخواست خاص ( query ) که از جانب کامپیوتر شما صادر می شود ، ترجمه می گردد .

این دوره آموزشی محصول موسسه Udemy است.

سرفصل های این دوره:

  • ویژگی های کلیدی SOM از DNS
  • اجزای DNS
  • نام فضا، کلاینت و سرور: DNS
  • سلسله مراتب دامنه
  • قالب بسته
  • تعیین نام میزبان
  • سطح دامنه بالای اینترنت
  • نقش DNS سرور
  • تفاوت بین سرورهای معتبر
  • ابزار availablie
  • DNS در عمل
  • امنیت DNS
  • DNSSEC و IPv6
  • و ….

عنوان دوره: Udemy DNS basics – Understand setup and manage your own domains

مدت دوره: 1 ساعت

نویسنده: Jimmy Larsson


توضیحات:

https://www.udemy.com/learn-dns/
Udemy DNS basics - Understand setup and manage your own domains

Jimmy Larsson
1 hour
Beginner Level

Course last updated 2016-03-15, see update log below!
Now more than 1100 enrolled users and average rating of 4.7 (out of 5)!
In this course You will learn anything about DNS - Domain Name System. Topic include:
The different components of DNS and how they cooperate.
How the domain hierarchy is structured in different levels.
What different types of information is stored in DNS.
How a DNS query and response works.
How the information is stored in zone files.
Recursive queries, the role of a local resolver.
How to use the tool dig for testing and troubleshooting DNS in various ways..
We will start with the basics and build ourself up to advanced sections. Starting with the domain hierarchy, how the protocol works and continue into dig, zone transfers and best practices for DNS setup with bind.
Remember! 30 days money-back guarantee with no questions asked. I want you to be satisfied with my course. No Happy - No Pay!
Also, please take advantage of the free previews to see way you will get.
After finishing this course you will feel confident and have full knowledge of all aspects of DNS! You will feel confident in how to setup, manage and troubleshoot DNS.
Updates:
2016-01-19 Added text lecture about DNSSec and IPv6
2016-01-19 Added a lecture that shows a bind installation in action
2016-01-24 Added lecture about zone delegations in bind
2016-02-01 Added lecture about DNS spoofing
2016-02-03 Added bonus lecture at the end of the course.
2016-03-15 Added text lecture about top level domains.
What are the requirements?
Basic knowledge of IP and networking in general is good.
What am I going to get from this course?
Over 20 lectures and 1 hour of content!
setup your own DNS servers.
understand how the DNS protocol works.
What is the target audience?
IT professionals

Section 1: Introduction and overview
Lecture 1
Welcome!
01:28
Lecture 2
Introduction
02:20
I will explain the background of the protocol. How it is used and som key characteristics of DNS.
Lecture 3
DNS components
01:32
DNS is divided in three components: The name space, clients and servers. I explain how they relate to each otuer.
Section 2: Bits and pieces
Lecture 4
Domain hierarchy
04:25
Everything about the domains. From the root zone to TLD:s, second and third level domains and so on.
Lecture 5
Clarifications on the terms "zone", "domain" and zone file
Article
Lecture 6
Record types
03:08
DNS consists of many record types. Some more common than others. I explain most of them.
Lecture 7
Packet format
03:51
To understand how DNS communicates it is good to know the simplicity of the protocol.
Lecture 8
The resolution process
05:27
What happens when your computer needs to resolve a hostname? In this lecture I walk You thru the process.
Lecture 9
Internet Top Level Domains
Article
Lecture 10
DNS server roles
02:39
I explain the difference between authoritative and resolving DNS servers.
Lecture 11
Root servers
Article
Extra information and background about the root servers.
Section 3: About availablie tools
Lecture 12
Tools
01:57
I describe some of the most common tools availabe when working with DNS.
Lecture 13
dig usage
04:45
In this lecture we dig into dig (pun intended!). How to use dig, various options.
Lecture 14
dig trace fun
Article
A bonus lecture on what you can do with dig.
Section 4: DNS in practice
Lecture 15
Zone file walkthrough
06:21
We will go through the structure of a live zone file to understund how it is built.
Lecture 16
Bind walkthrough
11:51
In this lecture I will show you a setup of one of my zones in a dual bind-configuration. The lecture includes how bind is configured, how updates are done and commonly mistakes that should be avoided.
Lecture 17
bind delegations
02:11
In this lecture I explain (after request from students) how delegations work and how to configure bind to delegate a sub-zone.
Section 5: DNS Security
Lecture 18
DNSSec and IPv6 - two topics mentioned just briefly
Article
Lecture 19
DNS Spoofing
08:45
We take a look at how DNS spoofing works. What are the challenges for the attacker? How can we make it harder for them? What solutions are there?
Section 6: Wrap up
Lecture 20
Bonus lecture: About me and my courses
Article
This bonus lecture contains some information about me, links to my sites as well as discounted coupon links to my other courses.