DNS caching | Consul | HashiCorp DeveloperOne of the main interfaces to Consul is DNS. Using DNS is a simple way to integrate Consul into an existing infrastructure without any high-touch integration. By default, Consul serves all DNS results with a 0 TTL value. This prevents any caching. The advantage is that each DNS lookup is always re-evaluated, so the most timely information is served. However, this adds a latency hit for each lookup
