Domain Name System (DNS) is the crucial and ubiquitous fabric of the Internet. While there are many parts to DNS, in this workshop, Swapneel Patnekar will dive deep into recursive resolvers. Most users on the Internet are unaware of recursive resolvers as the ISP architecture makes them obscured. In many cases, the ISP’s/users themsevles outsource their DNS to use 8.8.8.8 / 9.9.9.9 / 1.1.1.1 etc

The choice of the recursive resolver is made by the ISP or the network the device connects to. In this hands-on online workshop, Swapneel will teach participants to install and configure a recursive resolver which will also be configured with a local copy of the root zone (rfc 8806).

Workshop agenda:
1. Fundamentals of DNS
2. Shift of the recursive resolvers
3. DNS Resolver Centrality stats
3. Configure a recursive resolver on your system with QNAME minimisation, local copy of the root zone etc
4. Configure a recursive resolver for the entire network
5. Best practices

Who should attend?
1. Anyone running a network. In today’s world, everyone is running a network at home!
2. Anyone who cares about the decentralising the Internet.
3. Anyone interested in DNS.
4. Engineers, programmers, system administrators.

Requirements:
1. If you are using Windows Operating System, 64bit
2. Administrative rights: if the device belongs to the company, the installation requires administrative rights. If you have administrative rights, please consult with them first if you are allowed to install DNS software. Ideally, don’t attend this workshop with a company-owned laptop.

About the instructor: Swapneel is network engineer and researcher working on DNS, DNSSEC, BGP, Unix systems and security. As a technical trainer, he regularly conducts workshops on DNS, DNSSEC, Routing, Unix etc. He is also an APNIC Community Trainer and a RIPE Atlas Ambassador.
Swapneel is also the Managing Director of Shreshta IT Technologies Pvt. Ltd, a company based out of Belgaum, building & securing networks of micro,
small & medium enterprises & network operators in Tier-II and Tier-III cities.

Participation: This workshop is free to attend. RSVP to participate. Zoom link will be sent to registered participants before the workshop.
Comments and questions can be left for the instructor on the Comments page. We will address these before/during the workshop.

Contact details: If you have queries about the workshop, call 7676332020 or write to info@hasgeek.com

Hosted by

Rootconf is a forum for discussions about DevOps, infrastructure management, IT operations, systems engineering, SRE and security (from infrastructure defence perspective). more
Swapneel Patnekar

Swapneel Patnekar

@pswapneel

Take back control of your DNS - Run a recursive resolver on your system or in the network

Submitted Aug 21, 2020

Domain Name System (DNS) is the crucial & ubiquitous fabric of the Internet. Everything on the Internet uses the DNS.

While there are many parts to the DNS, in this workshop, I will dive deep into recursive resolvers. Most users on the Internet are unaware of recursive resolvers as the ISP architecture makes them obscured. In many cases, the ISP’s/users themsevles outsource their DNS to use 8.8.8.8 / 9.9.9.9 / 1.1.1.1 etc (Quad/Cloud DNS resolvers).

The choice of the recursive resolver is made by the ISP or the network the device connects to.

In this hands-on online workshop, I will teach participants to install and configure a recursive resolver which will also be configured with a local copy of the root zone (rfc 8806).

Outline

Why attend ?
1. Take back control of your DNS instead of outsourcing it to a third party
2. Decentralise the DNS Resolution - DNS Resolver centrality outlines the dependency on Open resolvers/Quad DNS providers
3. Majority of DNS queries sent to the root server system are junk queries. By running a local copy of the root zone (rfc8806), junk queries from your system/network to the upstream root servers are eliminated

Agenda -
1. Fundamentals of DNS
2. Shift of the recursive resolvers
3. DNS Resolver Centrality stats
3. Configure a recursive resolver on your system with QNAME minimisation, local copy of the root zone etc
4. Configure a recursive resolver for the entire network
5. Best practices

Who should attend?
1. Anyone running a network - In today’s world, everyone is running a network at home!
2. Anyone who cares about the decentralising the Internet
3. Anyone who is interested in DNS
4. Engineers, programmers, system administrators
5. All are welcome :-)

Requirements

Operating System -
1. If using Windows Operating System, 64bit
2. Administrative rights - If the device belongs to the company, the installation requires administrative rights. If you have administrative rights (it’s a strange world we live in now so anything is possible :-)), please consult with them first if you are allowed to install DNS software. My suggestion, don’t.

Speaker bio

Swapneel is network engineer & researcher working on DNS, DNSSEC, BGP, Unix systems and security.
As a technical trainer, he regularly conducts workshops on DNS, DNSSEC, Routing, Unix etc.
He is also an APNIC Community Trainer & a RIPE Atlas Ambassador.

In the recent past, he has delivered talks,

UKNOF Virtual July 2020 - Hyperlocal root & Localroot - Running a local copy of the DNS root zone
https://indico.uknof.org.uk/event/51/contributions/speakers

APNIC NFH June 2020 - Hyperlocal root & Localroot - Running a local copy of the DNS root zone
https://nfh.apnic.net/events/sea/#/day/1

null meetups May, June, July 2020 (Bhopal, Mumbai, Bangalore) - Using DNS as a layer of defense
https://null.community/profile/19522-swapneel-patnekar

He is also the Managing Director of Shreshta IT Technologies Pvt. Ltd,
a company based out of Belgaum, building & securing networks of micro,
small & medium enterprises & network operators in Tier-II and Tier-III
cities.

Links

Slides

https://runyourownresolver.in/

Comments

{{ gettext('Login to leave a comment') }}

{{ gettext('Post a comment…') }}
{{ gettext('New comment') }}
{{ formTitle }}

{{ errorMsg }}

{{ gettext('No comments posted yet') }}

Hosted by

Rootconf is a forum for discussions about DevOps, infrastructure management, IT operations, systems engineering, SRE and security (from infrastructure defence perspective). more