class twisted.names.secondary.SecondaryAuthority(FileAuthority): (source)
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. |
| Instance Variable | domain | The domain for which this is the secondary authority. |
| Instance Variable | transferring | Undocumented |
| Instance Variable | soa | Undocumented |
| Instance Variable | records | Undocumented |
| 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 | Attempt a zone transfer. |
| Instance Variable | transfering | Undocumented |
| Method | update | Undocumented |
| Instance Variable | transferred | 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:
| Method | __setstate__ | Undocumented |
| Instance Variable | __dict__ | Undocumented |
| Method | loadFile | Load DNS records from a file. |
| 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. |
| Instance Variable | _cache | Undocumented |
| 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):
| Instance Variable | typeToMethod | Undocumented |
| 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. |
| Class Variable | _log | Undocumented |
| Method | _cbRecords | Undocumented |
str)
int)
None to use the global reactor.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. (type: bytes) | |
| 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. | |