services/dns/Providing Anycast DNS
DEPRECATED - Please have a look at Hierarchical DNS instead
You may want to participate in the anycast DNS cloud.
Configuration
Configuration requirements for all members of the anycast group are:
- maintain your own zones based on whois database (scripts included in monotone repository)
- allow recursion (including
.) - listen on a unicast IP too for testing/debugging reasons
- with bind, please use
minimal-responses yes;(goes intooptions/view)
It is really good to hang around in IRC to get things sorted out, if something doesn't work. Letting some people test your DNS behavior before joining the anycast-group is considered best practice - better safe than sorry.
- IP: 172.23.0.53
- Announciation Subnet: 172.23.0.53/32
Generating Zone Files
There are a few different scripts for generating zone files. They have been written in a few different languages. Please keep in mind that RFC 2317 is what keeps people from registering a /24 just to have RDNS, so scripts that support it have a positive effect on address space usage.
| Script | Language | Notes |
|---|---|---|
| rfc2317.rb | Ruby | |
| subnettr.py | Python 3 | Author: xuu, forward & reverse dns + RFC 2317 |
| zonegen.bind.php | PHP | |
| zonegen.bind.sh | Bash | |
| zonegen.rb | Ruby | |
| zonegen.rdns.bind.sh | Bash | |
| zonegen.rdns.tinydns.sh | Bash | |
| zonegen.rev.bind.sh | Bash | |
| zonegen.smallblockrdns.tinydns.sh | Bash | |
| zonegen.tinydns.sh | Bash | |
| zongen.v2.sh | Sh | Author: Martin89, forward & reverse dns + RFC 2317 |
Persons providing anycast DNS
| Person | Region | AS | Unicast Address | Comments |
|---|---|---|---|---|
| siska | SI | 76103 | a.resolvers.nic.dn42 (172.22.177.70) | |
| xuu | UT,US | 64737 | xuu.root.dn42 (172.22.141.132) | |
| xuu | ON,CA | 64737 | souris.root.dn42 (172.22.141.180) | |
| Nurtic-Vibe | EU | 4242420123 | ns1.grmml.dn42 (172.23.149.20) | |
| MWD | AU | 4242420002 | nsr1.mwd.dn42 (172.23.227.20) | |
| Fritz | ?? | 64712 | ?? (??) | Advertised over bgp |
| prauscher | DE | 64720 | prauscher.root.dn42 (172.22.120.1) | advertised in BGP |
| hax404 | DE | 76114 | chero.hax404.dn42 (172.23.136.65) | advertised in BGP |
| florianb | AT | 4242423955 | resolver.flo.dn42 (172.20.2.65) | advertisted in BGP |
IPv6 DNS
IP: fd42:d42:d42:53::1/64
Persons providing anycast DNS for IPv6
| Person | Region | AS | Unicast Address | Comments |
|---|---|---|---|---|
| xuu | UT,US | 64737 | xuu.root.dn42 (fdea:a15a:77b9:d42::53) | |
| xuu | ON,CA | 64737 | souris.root.dn42 (fdea:a15a:77b9:53::1) | |
| Nurtic-Vibe | EU | 4242420123 | ns1.grmml.dn42 (fd42:23:149:cccc::53) | |
| hax404 | DE | 76114 | chero.hax404.dn42 (fd58:eb75:347d:101::1) | |
| florianb | AT | 4242423955 | resolver.flo.dn42 (fd42:d42:d42:53::1) | advertisted in BGP |