Abstract
Reverse DNS (rDNS) is often used as a reliable data-source for
critical services, such as mail, security appliances or geolocation
services. Unlike forward DNS, rDNS remains understudied, especially from a deployment perspective. In this paper, we take steps
towards closing the gap, starting at regional Internet registries,
down to network operators in the lower hierarchy. To this end, we
use public and complementary data sources and find that around
40% of allocated IPv4 address space has well-configured rDNS entries. We highlight regional differences as rDNS deployment is
driven by mail and infrastructure providers in the developed world,
while national Internet registries and national ISPs are drivers in
the developing world. We study the use of classless delegation and
the prevalence of configuration errors breaking DNS resolution.
Finally, we observe that multi-regional organizations such as CDNs
and mail providers actively invest effort towards improving rDNS
deployment.
critical services, such as mail, security appliances or geolocation
services. Unlike forward DNS, rDNS remains understudied, especially from a deployment perspective. In this paper, we take steps
towards closing the gap, starting at regional Internet registries,
down to network operators in the lower hierarchy. To this end, we
use public and complementary data sources and find that around
40% of allocated IPv4 address space has well-configured rDNS entries. We highlight regional differences as rDNS deployment is
driven by mail and infrastructure providers in the developed world,
while national Internet registries and national ISPs are drivers in
the developing world. We study the use of classless delegation and
the prevalence of configuration errors breaking DNS resolution.
Finally, we observe that multi-regional organizations such as CDNs
and mail providers actively invest effort towards improving rDNS
deployment.
| Original language | English |
|---|---|
| Title of host publication | AINTEC '23 |
| Subtitle of host publication | Proceedings of the 18th Asian Internet Engineering Conference |
| Place of Publication | New York, NY, USA |
| Publisher | Association for Computing Machinery |
| Pages | 37-45 |
| Number of pages | 9 |
| ISBN (Print) | 979-8-4007-0939-5 |
| DOIs | |
| Publication status | Published - 12 Dec 2023 |
| Event | 18th Asian Internet Engineering Conference, AINTEC 2023 - Hanoi, Viet Nam Duration: 12 Dec 2023 → 14 Dec 2023 Conference number: 18 |
Conference
| Conference | 18th Asian Internet Engineering Conference, AINTEC 2023 |
|---|---|
| Abbreviated title | AINTEC 2023 |
| Country/Territory | Viet Nam |
| City | Hanoi |
| Period | 12/12/23 → 14/12/23 |
Keywords
- 2024 OA procedure
- PTR
- RIR
- rDNS
