Ultimate DNS Warrior

DNS Protocol and BIND Server - Expert Level - Incudes latest protocol advancements: DOH/DOT/Cookies - Expert T.Shooting
What you'll learn
In depth working of the protocol as per the DNS RFCs
Components of the DNS System
DNS Namespace - Fully Qualified Domain Name (FQDN)
Hierarchical Administration - Registry/Registrar/Registrant
Zones and Resource Records
Concept of Delegation
Types of DNS Servers - Authoritative vs Resolvers
Iterative vs Recursive DNS Queries
The 13 Root DNS Servers
Forward vs Reverse Zones
Resource Record Format
Purpose, format, usage and rules for most common Resource Records such as SOA, NS, A, AAAA, PTR, CNAME, TXT, MX and SRV and CAA Records
Wildcard Records
DNS Packet Format
DNS response Status Codes
Deep Dive into the complete DNS resolution process
What are White Label or branded or Vanity Name Servers?
How Glue records break circular reference?
DNS Response Caching and TTL
How caching works at the End Client
How caching works at the Resolver
The perils of caching
What is BIND?
How dig +trace works?
Setting up a Recursive Resolver
Tuning the Resolver
Setting up a Caching Server and Forwarding Queries
Setting up Authoritative Master and Slave Name Servers
How Zone transfers work - AXFR vs IXFR, Notify mechanism, SOA record timers?
Complete walkthrough of buying a Domain and setting up Internet facing Branded Name Servers
Different DNS Architectures used in Corporate Networks
How to perform Sub Domain Delegation
Different DNS related Files and settings on Windows and Linux end clients
Deep Dive into Extension Mechanisms for DNS (EDNS)
Views or Split DNS
EDNS Client Subnet (ECS)
Name Server Identifier (NSID)
Dynamic DNS Updates (DDNS)
How to delegate reverse zones which don't fall on classful boundaries
Deep Dive into DNSSEC - DNSSEC records, zone signing, establishing chain of trust, DNSSEC flags, failure scenarios
How to implement DNSSEC on BIND, Key maintenance and troubleshooting
DNS Firewall (RPZ) using local and 3rd party rule providers
DDOS protection features on BIND - clients per query, fetches-per-zone, fetches-per-server, recursive-clients and tcp-clients, Response Rate Limiting (RRL)
DNS Response Filtering features on BIND - Blackhole, NXDOMAIN Redirection
New DNS security features - DNS Cookies
Whois, EPP Status codes and related Domain settings and issues
How to troubleshoot different variety of DNS resolution issues
How to troubleshoot BIND server under heavy load
How end client stub resolver softwares such as Systemd-resolved and Dnsmasq can be leveraged to enabled caching
Best practices and steps to follow when transferring domain registration/hosted zone
Requirements
Basic networking and linux knowledge
Access to a Linux server - cloud / eve-ng / gns3
Access to intermediate network devices such as routers / switches / firewalls
Description
This course includes:12.5 hours on-demand videoDownloadable commands and configurationsFull lifetime accessCertificate of CompletionWho is this course for:This course has been designed for all IT Professionals looking forward to learn the DNS protocol and how to install, configure, operate and troubleshoot a BIND DNS Server.The course covers the DNS protocol and BIND Server from scratch to expert level.Course Outcomes:Thorough understanding of the DNS protocol.Understand how DNS works within large production grade environmentsUse dig and other tools to troubleshoot a wide variety of DNS issuesGain confidence to troubleshoot complex DNS issuesInstall, configure, tweak and tune the BIND as a recursive caching resolverInstall, configure, tweak and tune the BIND as an Authoritative DNS ServerMaster the advanced side of DNS - EDNDS, ECS, Views, DDNS, DNSSEC, DNS Cookies, DNS Firewall and moreGain confidence to clear interviews with top tier organizations like Amazon, Google, Facebook etc.What sets this course apart from others:High quality production standardsRespect for time - every second of the course is used to deliver precise and practical informationGoes deep into the protocol following the RFCComprehensive coverage of almost all DNS related conceptsAll topics are explained with practical labsExplains not just the protocol but how it works in the context of a large production network - how different network devices interact with DNS trafficDeep dive into the protocol and real world implementationsFocus on troubleshooting rather than just configuration
Who this course is for
This course has been designed for all IT Professionals looking forward to learn the DNS protocol and how to install, configure, operate and troubleshoot a BIND DNS Server. The course covers the DNS protocol and BIND Server from scratch to expert level.
Homepage

https://www.udemy.com/course/ultimate-dns-warrior/

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