1. Defining Namespaces Challenges with Internet Namespaces Jonne Soininen
EE DNS Forum, Minsk 2017
12 October 2017

2. Internet has multiple namespaces
Internet Namespaces
Multiple name spaces exist
DNS based
Non-DNS based
Global
Private
Technically these are different
Different technology
Different scope
They do look very similar!
Internet has multiple namespaces 2

3. The DNS is a big part of the Internet namespace
Domain Name System
Global DNS Namespace
Global
Organized
Hierarchical
Globally unique
“.”
TLD X
TLD Y
TLD Z
The DNS is a big part of the Internet namespace 3

4. Special-Use Names are a different namespace from the DNS
Registry managed by the IETF
RFC2606, RFC6761
Used for special/technical use
Protocols different from the DNS
Not in DNS root
IETF is revising its process
Special-Use names problem statement: draft-ietf-dnsop-sutld-ps
Current special-use names:
Example, example.com, example.net, example.org
Invalid
Local
Localhost
Onion
test
Special-Use Names are a different namespace from the DNS 4

5. Private namespaces are common especially in company networks
Private DNS
Local DNS Namespace
Local within an organization
Uses the DNS protocol
Looks exactly like global DNS
CORP X Y Z
Private namespaces are common especially in company networks 5

6. Namespace issues Technical Collisions Resolution method ambiguity
Non-technical
End-user confusion
Ownership of namespaces
Overlapping allocations
Namespace management
DNS root: ICANN
Special use names: IETF
Private: The organization, vendor, etc. using the namespace
Security and Stability Advisory Committee statement
SSAC Advisory on the Stability of the Domain Namespace (SSAC090)
Corp
Home
Mail
Lan
Belkin 6

7. Cooperation is key for solving namespace challenges
Winning the Challenge
Coordination
Especially, between ICANN and IETF
Education
How to contain collisions
New names coming to the root
Technical
Potential new technologies
Policy
Not delegating strings when in risk
Cooperation is key for solving namespace challenges 7

8. ? & !
Jonne Soinien