hashicorp/consul — pull request #475 by lalyos (2014-11-16 14:20:23+00:00)
Title: Handle PTR requests to implement dns reverse lookup

Some environment needs reverse dns lookups.

For example when
- `node1.node.consul` resolves to `172.17.0.1` then
- `1.0.17.172.in-addr.arpa` expected to resolve `node1.node.consul`