twisted.names.secondary.SecondaryAuthority(FileAuthority) class documentationtwisted.names.secondary
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      An Authority that keeps itself updated by performing zone transfers.
| Instance Variable | primary | The IP address of the server from which zone transfers will be attempted. (type: str) | 
  
| Method | __init__ | |
| Class Method | fromServerAddressAndDomain | Construct a new SecondaryAuthority
from a tuple giving a server address and a bytes giving the 
name of a domain for which this is an authority. | 
  
| Method | transfer | Undocumented | 
| Method | update | Undocumented | 
| Instance Variable | _port | The port number of the server from which zone transfers will be attempted. | 
| Instance Variable | _reactor | The reactor to use to perform the zone transfers, or None
to use the global reactor. | 
  
| Method | _lookup | Determine a response to a particular DNS query. | 
| Method | _cbZone | Undocumented | 
| Method | _ebZone | Undocumented | 
| Method | _cbTransferred | Undocumented | 
| Method | _ebTransferred | Undocumented | 
Inherited from FileAuthority:
| Instance Variable | soa | A 2-tuple containing the SOA domain name as a bytes
and a dns.Record_SOA. | 
  
| Method | __setstate__ | Undocumented | 
| Method | lookupZone | Perform an AXFR record lookup. | 
| Instance Variable | _ADDITIONAL_PROCESSING_TYPES | Record types for which additional processing will be done. | 
| Instance Variable | _ADDRESS_TYPES | Record types which are useful for inclusion in the additional section generated during additional processing. | 
| Method | _additionalRecords | Find locally known information that could be useful to the consumer of the response and construct appropriate records to include in the additional section of that response. | 
| Method | _cbAllRecords | Undocumented | 
Inherited from ResolverBase (via FileAuthority):
| Method | exceptionForCode | Convert a response code (one of the possible values of dns.Message.rCode
to an exception instance representing it. | 
  
| Method | query | Dispatch query to the method which can handle its type. | 
  
| Method | lookupAddress | Perform an A record lookup. | 
| Method | lookupIPV6Address | Perform an AAAA record lookup. | 
| Method | lookupAddress6 | Perform an A6 record lookup. | 
| Method | lookupMailExchange | Perform an MX record lookup. | 
| Method | lookupNameservers | Perform an NS record lookup. | 
| Method | lookupCanonicalName | Perform a CNAME record lookup. | 
| Method | lookupMailBox | Perform an MB record lookup. | 
| Method | lookupMailGroup | Perform an MG record lookup. | 
| Method | lookupMailRename | Perform an MR record lookup. | 
| Method | lookupPointer | Perform a PTR record lookup. | 
| Method | lookupAuthority | Perform an SOA record lookup. | 
| Method | lookupNull | Perform a NULL record lookup. | 
| Method | lookupWellKnownServices | Perform a WKS record lookup. | 
| Method | lookupService | Perform an SRV record lookup. | 
| Method | lookupHostInfo | Perform a HINFO record lookup. | 
| Method | lookupMailboxInfo | Perform an MINFO record lookup. | 
| Method | lookupText | Perform a TXT record lookup. | 
| Method | lookupSenderPolicy | Perform a SPF record lookup. | 
| Method | lookupResponsibility | Perform an RP record lookup. | 
| Method | lookupAFSDatabase | Perform an AFSDB record lookup. | 
| Method | lookupNamingAuthorityPointer | Perform a NAPTR record lookup. | 
| Method | lookupAllRecords | Perform an ALL_RECORD lookup. | 
| Method | getHostByName | Resolve the domain name name into an IP address. | 
  
| Class Variable | _errormap | A dict mapping DNS protocol failure response codes to 
exception classes which will be used to represent those failures. | 
  
| Method | _cbRecords | Undocumented | 
| Parameters | domain | The domain for which this will be the secondary authority. (type: bytes) | 
Construct a new SecondaryAuthority
from a tuple giving a server address and a bytes giving the 
name of a domain for which this is an authority.
| Parameters | serverAddress | A two-tuple, the first element of which is a str giving an IP 
address and the second element of which is a int giving a port
number.  Together, these define where zone transfers will be attempted 
from. | 
| domain | A bytes giving the domain to transfer. | |
| Returns | A new instance of SecondaryAuthority. | |
Determine a response to a particular DNS query.
| Parameters | name | The name which is being queried and for which to lookup a response. (type: bytes) | 
| cls | The class which is being queried.  Only IN is implemented here and 
this value is presently disregarded. (type: int) | |
| type | The type of records being queried.  See the types defined in twisted.names.dns. (type: int) | |
| timeout | All processing is done locally and a result is available immediately, so the timeout value is ignored. | |
| Returns | A Deferred 
that fires with a tuple
of three sets of response records (to comprise the answer, 
authority, and additional sections of a DNS response) or with
a Failure if
there is a problem processing the query. | |