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This three-day hands on DNS training course studies both the UNIX BIND and the Microsoft (MS DNS) implementations. The course starts with the big picture of how DNS works, then client configuration. Primary and secondary servers are then configured, progressing to DDNS, subdomains and security issues. Hands on sessions follow all sections ensuring that troubleshooting techniques are used throughout the course. Students choose whether to use Windows or UNIX for the hands on sessions.

TCP/IP foundation for engineers

By the end of the course delegates will be able to:

Describe the architecture of DNS.
Explain how DNS works.
Install, configure, maintain and troubleshoot DNS

What is DNS?

Hostnames, Name resolution, host files, host file problems, What is DNS? The DNS namespace, TLDs, gTLDs, registering domains, Nameservers, how DNS works.

Hands on Testing DNS servers on the Internet.

DNS clients

Ways to use DNS, dynamic and static configuration, multiple nameservers, domain name, searchlist, resolution issues, testing the configuration.

Hands on Client configuration.

DNS server software

Implementations, Microsoft, BIND, daemons and services, installation, starting and stopping servers.

Hands on Setting up a DNS server.

DNS zone files

What is a zone, Zone file overview, Forward zones, Reverse zones, Resource records, A records, PTR, CNAME, Root hints, local zone file. BIND and Microsoft configuration.

Hands on Server configuration files.

NS and applications

MX records, Mail server load balancing, SPF, SRV records, VoIP and SRV, Microsoft and SRV, NAPTR.

Hands on Testing records with dig and nslookup.

DNS slaves and other servers

DNS server types, Server resilience, Slaves, Zone transfers, SOA records, Serial numbers, recommendations, polling based zone transfers, NOTIFY, AD integration, DNS caching, Negative caching, TTL, Caching only servers.

Hands on Masters, slaves and zone transfers.

The DNS protocol

The DNS stack, DNS port numbers, DNS queries, The DNS header, header section format, question format, other section format.

Hands on Troubleshooting DNS with Wireshark.

Dynamic DNS

DHCP, DDNS, IXFR, WINS integration.

Hands on Dynamic DNS.

Subdomains

Root servers, root server selection, Authority, delegation, NS records, subdomain with and without delegation, reverse delegation.

Hands on Delegation, setting up a subdomain server.

DNS security

Restricting queries, DNS and firewalls, Split DNS, forwarders, internal root servers, the use of proxy servers, DNSSEC, TSIG.

Hands on Hardening a DNS server.

DNS and IPv6

What is IPv6, IPv6 addressing, IPv6 DNS issues, AAAA, IPv6 reverse delegation.

Troubleshooting DNS

Problem solving, DNS troubleshooting, Zone file checking, Some common errors, Log files, tools, nslookup, dig, host, DNS design, performance, load balancing.

Hands on Putting it all together.

Summary

Useful books, Internet sites, RFCs.

Appendix: ENUM

What is ENUM, How ENUM works, NAPTR.

Definitive DNS for engineers Training Course in Norway

The Nordic country Norway, is in Northern Europe. Known for its stunning natural beauty, including fjords, mountains, and forests, Norway is also famous for its high standard of living and strong social welfare system. Norway's capital and largest city is Oslo. Tromsø, Bergen, Trondheim and Stavanger are the other tourist attracting cities of Norway.

Norway is a constitutional monarchy with King Harald V as the head of state. The country has a population of 5,425,270 as of January 2022. Norway is a relatively small country and has a relatively low population density, with much of its land area covered by forests, mountains, and fjords. Despite its small size, Norway is known for its rich cultural heritage, strong economy, and stunning natural beauty, which attracts millions of visitors every year. This Nordic country is also known for its winter sports, such as skiing and snowboarding, and is a popular destination for outdoor enthusiasts.

Norway has a long history of invention and is home to numerous more top-tier tech firms and research facilities, such as; Kongsberg Gruppen, Telenor, Atea, Evry and Gjensidige Forsikring.

Due to the country's high latitude, there are large seasonal variations in daylight. From late May to late July, the sun never completely descends beneath the horizon. Which attracts many tourists around the world to see the "Land of the Midnight Sun". Tourists mainly visit Sognefjord, Norway's Largest Fjord, Pulpit Rock, one of the most photographed sites in Norway and of course the capital; Oslo.

Oslo is considered the business center of Norway. It is the country's largest city and the capital of Norway. The city is home to many of Norway's largest and most important companies, as well as several international organizations and research institutions. Additionally, the city is a popular tourist destination, known for its scenic location on the Oslo Fjord, its many museums and cultural attractions, and its vibrant nightlife and dining scene. Some of the most popular museums in Oslo are The Norwegian Museum of Cultural History, The Nobel Peace Center, The National Museum of Art, Architecture, and Design, The Munch Museum and The Vigeland Museum.

Definitive DNS for engineers Training in Norway

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Definitive DNS for engineers Training in Norway

Prerequisites

What You Will Learn

Outline

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