public class DNSJavaNameService
extends java.lang.Object
implements sun.net.spi.nameservice.NameService
This Name Service Provider uses dnsjava.
To use this provider, you must set the following system propery: sun.net.spi.nameservice.provider.1=dns,dnsjava
Modifier | Constructor and Description |
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protected |
DNSJavaNameService()
Creates a DNSJavaNameService instance.
|
Modifier and Type | Method and Description |
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java.lang.String |
getHostByAddr(byte[] addr)
Performs a reverse DNS lookup.
|
java.net.InetAddress[] |
lookupAllHostAddr(java.lang.String host)
Performs a forward DNS lookup for the host name.
|
protected DNSJavaNameService()
Uses the sun.net.spi.nameservice.nameservers, sun.net.spi.nameservice.domain, and java.net.preferIPv6Addresses properties for configuration.
public java.net.InetAddress[] lookupAllHostAddr(java.lang.String host) throws java.net.UnknownHostException
lookupAllHostAddr
in interface sun.net.spi.nameservice.NameService
host
- The host name to resolve.java.net.UnknownHostException
public java.lang.String getHostByAddr(byte[] addr) throws java.net.UnknownHostException
getHostByAddr
in interface sun.net.spi.nameservice.NameService
addr
- The ip address to lookup.java.net.UnknownHostException