org.xbill.DNS
Class ResolverConfig

java.lang.Object
  org.xbill.DNS.ResolverConfig

public class ResolverConfig
extends Object

A class that tries to locate name servers and the search path to be appended to unqualified names. The following are attempted, in order, until one succeeds.

• The properties 'dns.server' and 'dns.search' (comma delimited lists) are checked. The servers can either be IP addresses or hostnames (which are resolved using Java's built in DNS support).
• The sun.net.dns.ResolverConfiguration class is queried.
• On Unix, /etc/resolv.conf is parsed.
• On Windows, ipconfig/winipcfg is called and its output parsed. This may fail for non-English versions on Windows.
• "localhost" is used as the nameserver, and the search path is empty.

These routines will be called internally when creating Resolvers/Lookups without explicitly specifying server names, and can also be called directly if desired.

Author:

Brian Wellington, Yannick Meudal

Constructor Summary

ResolverConfig()

Method Summary

static ResolverConfig	getCurrentConfig() Gets the current configuration
static void	refresh() Gets the current configuration
Name[]	searchPath() Returns all entries in the located search path
String	server() Returns the first located server
String[]	servers() Returns all located servers

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ResolverConfig

public ResolverConfig()

Method Detail

servers

public String[] servers()

Returns all located servers

server

public String server()

Returns the first located server

searchPath

public Name[] searchPath()

Returns all entries in the located search path

getCurrentConfig

public static ResolverConfig getCurrentConfig()

Gets the current configuration

refresh

public static void refresh()

Gets the current configuration