| Package | Description | 
|---|---|
| io.netty.bootstrap | The helper classes with fluent API which enable an easy implementation of
 typical client side and server side channel initialization. | 
| io.netty.resolver | Resolves an arbitrary string that represents the name of an endpoint into a  SocketAddress. | 
| io.netty.resolver.dns | An alternative to Java's built-in domain name lookup mechanism that resolves a domain name asynchronously,
 which supports the queries of an arbitrary DNS record type as well. | 
| Modifier and Type | Method and Description | 
|---|---|
| Bootstrap | Bootstrap. resolver(NameResolverGroup<?> resolver)Sets the  NameResolverwhich will resolve the address of the unresolved named address. | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | DefaultNameResolverGroup | 
| class  | NoopNameResolverGroup | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | DnsNameResolverGroupA  NameResolverGroupofDnsNameResolvers. | 
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