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Anycast DNS
Description of service
This service provides an efficient and fault tolerant way of resolving 168.192.in-addr.arpa
and 0.b.3.f.4.6.b.6.0.0.d.f.ip6.arpa
zones across GLaNET.
- To use it, simply add forwarding zones, pointing to the following servers:
- Anycast DNS IPv4: 192.168.248.53.
- Anycast DNS IPv6:
fd00:6b64:f3b0:53::1
(advertisefd00:6b64:f3b0:53::/64
over BGP).
BIND9 configuration example (forwarder)
zone "168.192.in-addr.arpa" { type forward; forwarders { 192.168.248.53; fd00:6b64:f3b0:53::1; }; }; zone "0.b.3.f.4.6.b.6.0.0.d.f.ip6.arpa" { type forward; forwarders { 192.168.248.53; fd00:6b64:f3b0:53::1; }; };
- If you have a large network, you might want to run a local and private slave DNS server for these zones to increase performances.
BIND9 configuration example (slave)
zone "168.192.in-addr.arpa" { type slave; masters { 192.168.248.53; fd00:6b64:f3b0:53::1; }; file "/etc/bind/zones/db.192.168"; }; zone "0.b.3.f.4.6.b.6.0.0.d.f.ip6.arpa" { type slave; masters { 192.168.248.53; fd00:6b64:f3b0:53::1; }; file "/etc/bind/zones/db.fd00:6b64:f3b0"; };
Recursive DNS
We also aim to provide a recursive anycast DNS service within GLaNET. To use it, just configure the following addresses as your resolver:
- Anycast recursive DNS IPv4: 192.168.248.153.
- Anycast recursive DNS IPv6:
fd00:6b64:f3b0:153::1
(advertisefd00:6b64:f3b0:153::/64
over BGP).