Domain Name Server
| Class | Options | No class docstring; 4/6 methods documented | 
| Function | makeService | Undocumented | 
| Function | _buildResolvers | Build DNS resolver instances in an order which leaves recursive resolving as a last resort. | 
Build DNS resolver instances in an order which leaves recursive resolving as a last resort.
| Parameters | config | Parsed command-line configuration (type: Optionsinstance) | 
| Returns | Two-item tuple of a list of cache resovers and a list of client resolvers | |