On this course, you will learn about DNS concepts, configurations, operations and basic security aspects.
DNS is short for Domain Name System. It is part of the internet infrastructure and therefore necessary for web navigation, email distribution and other internet functions.
We will review the principles of the DNS protocol and domain names, and you will learn about the different concepts and tools used when working with DNS. We will end the day by discussing new email and web traffic protection technologies built onto DNS.
Thomas Steen Rasmussen works for internet provider BornFiber as Unix administrator/security manager/developer. He also runs his own one-man business – tyktech. He is involved in the DNS censorship service and similar internet activist projects.
Content of the course
We will start the day by looking back at how domain names emerged on the internet. We will review the various parties involved in registration of domain names, such as ICANN and DK Hostmaster. We will delve into the technology and protocols and explore elements such as authoritative and recursive name servers, and we will touch on DNS records, TTL, caching and tools.
After lunch, we will continue with a brief introduction to modern security mechanisms in DNS. We will look at DNS, TLS and other privacy aspects in DNS. We will review email security in the form of blocking lists (RBL), SPF, DKIM and DMARC, and we will talk about DNSSEC, which adds an extra layer of security to DNS. We will end the day by introducing DANE and CAA, both of which use DNSSEC's secure DNS infrastructure to improve the security of TLS connections (e.g. HTTPS.)
For those who are interested in delving deeper into these subjects, we will be running advanced courses over the following days.
This course is for network engineers, system administrators and anyone who wants to learn more about DNS. The first half of the course is very basic and is for DNS beginners and intermediate level users.
Date: Monday, 5 November 2018
Time: 9.00 am to 4.00 pm
Address: Ørestads Boulevard 108, 2300 Copenhagen S
Meals: Breakfast and lunch
Other: Remember your laptop. A smartphone or tablet will not be adequate. The type of operating system you have on your laptop is not important, but you must be able to install tools.
Send an email to firstname.lastname@example.org with the course title, your name and your company name.