Package org.springframework.security.remoting.dns

Interface DnsResolver

All Known Implementing Classes:
JndiDnsResolver
@Deprecated public interface DnsResolver
Deprecated.
as of 5.6.0 with no replacement
Helper class for DNS operations.
Since:
3.0

  • Method Summary

    Modifier and Type
    Method
    Description
    String
    resolveIpAddress(String hostname)
    Deprecated.
    Resolves the IP Address (A record) to the specified host name.
    String
    resolveServiceEntry(String serviceType, String domain)
    Deprecated.
    Resolves the host name for the specified service in the specified domain
    String
    resolveServiceIpAddress(String serviceType, String domain)
    Deprecated.
    Resolves the host name for the specified service and then the IP Address for this host in one call.

  • Method Details

    • resolveIpAddress

      String resolveIpAddress(String hostname) throws DnsEntryNotFoundException, DnsLookupException
      Deprecated.
      Resolves the IP Address (A record) to the specified host name. Throws DnsEntryNotFoundException if there is no record.
      Parameters:
      hostname - The hostname for which you need the IP Address
      Returns:
      IP Address as a String
      Throws:
      DnsEntryNotFoundException - No record found
      DnsLookupException - Unknown DNS error

    • resolveServiceEntry

      String resolveServiceEntry(String serviceType, String domain) throws DnsEntryNotFoundException, DnsLookupException
      Deprecated.

      Resolves the host name for the specified service in the specified domain

      For example, if you need the host name for an LDAP server running in the domain springsource.com, you would call resolveServiceEntry("ldap", "springsource.com").

      The DNS server needs to provide the service records for this, in the example above, it would look like this: 

       _ldap._tcp.springsource.com IN SRV 10 0 88 ldap.springsource.com.
      The method will return the record with highest priority (which means the lowest number in the DNS record) and if there are more than one records with the same priority, it will return the one with the highest weight. You will find more informatione about DNS service records at Wikipedia.
      Parameters:
      serviceType - The service type you are searching for, e.g. ldap, kerberos, ...
      domain - The domain, in which you are searching for the service
      Returns:
      The hostname of the service
      Throws:
      DnsEntryNotFoundException - No record found
      DnsLookupException - Unknown DNS error

    • resolveServiceIpAddress

      String resolveServiceIpAddress(String serviceType, String domain) throws DnsEntryNotFoundException, DnsLookupException
      Deprecated.
      Resolves the host name for the specified service and then the IP Address for this host in one call.
      Parameters:
      serviceType - The service type you are searching for, e.g. ldap, kerberos, ...
      domain - The domain, in which you are searching for the service
      Returns:
      IP Address of the service
      Throws:
      DnsEntryNotFoundException - No record found
      DnsLookupException - Unknown DNS error
      See Also: