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DNS (Domain Name System) Full Course Basics to Advanced – How a DNS Server Works

Discover the core of the internet with our “Mastering DNS” course, meticulously crafted to provide you with a thorough understanding of the Domain Name System (DNS). This course caters to …IT professionals, network engineers, and beginners eager to delve deep into how DNS operates. You’ll embark on a journey through the essentials of DNS, exploring its history, domains, delegation, zones, and name servers. Gain practical knowledge on managing DNS resource records such as A, AAAA, MX, and more, equipping you to configure and troubleshoot network settings with confidence. Our expert-led tutorials cover both fundamental and advanced DNS topics, including dynamic updates, sender policy frameworks, and essential query tools like nslookup and dig. As you progress, you’ll enhance not only your technical skills but also your career opportunities in IT and network management. Ideal for those looking to expand their technical acumen, this course offers insights from industry experts sure to make you proficient in DNS. Join today and elevate your understanding of one of the internet’s most vital systems, paving the way for a successful tech career!



*Chapters and Timestamps:*

00:00 – What You Should Expect From This Video
01:08 – A Brief History Of The Domain Name System

*2. How Does DNS Work?*
05:19 – What Is The Domain Name System?
09:08 – Domains, Delegation And Zones
12:14 – The Internet Namespace
16:31 – Internationalized Domain Names
18:38 – Name Servers, Zones And Authority
20:04 – Resolvers
21:53 – Resolution And Recursion
26:15 – Queries And Responses
29:02 – Caching
31:25 – Server Selection And Retransmission

*3. Name Servers*
33:15 – Authoritative, Recursive And Caching Name Servers
35:30 – Primaries And Secondaries
38:39 – Forwarding And Forwarders
41:12 – Makes And Models – BIND, The Windows DNS Server, And More

*4. Resource Records*
43:28 – Resource Records
46:52 – DNS Record break
47:07 – The A Record
48:16 – The AAAA Record
49:30 – The PTR Record
52:54 – The CNAME Record
54:38 – The MX Record
56:51 – The SRV Record
59:36 – The TXT Record
01:00:34 – Infrastructure Records
01:08:18 – Wildcards
01:10:37 – RRset Order
01:12:01 – Tracing Resolution With dig

*5. Stub Resolver Configuration And Operation*
01:16:59 – Timeouts And Retransmissions
01:21:12 – Default Domains And Search Lists

*6. Advanced Topics*
01:24:45 – Dynamic Update
01:30:42 – NOTIFY
01:33:43 – IXFR
01:34:51 – Sender Policy Framework

*7. Query Tools*
01:38:14 – nslookup
01:46:57 – DNS Record break
01:47:07 – dig

*8. Wrap-Up*
01:55:56 – Final Words



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