Package dns :: Module resolver |
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# Module resolver

source code

DNS stub resolver.

Classes | [hide private]
| NXDOMAIN The DNS query name does not exist.
| YXDOMAIN The DNS query name is too long after DNAME substitution.
| NoAnswer The DNS response does not contain an answer to the question.
| NoNameservers All nameservers failed to answer the query.
| NotAbsolute An absolute domain name is required but a relative name was provided.
| NoRootSOA There is no SOA RR at the DNS root name.
| NoMetaqueries DNS metaqueries are not allowed.
| Answer DNS stub resolver answer
| Cache Simple DNS answer cache.
| LRUCacheNode LRUCache node.
| LRUCache Bounded least-recently-used DNS answer cache.
| Resolver DNS stub resolver

Functions | [hide private]
get_default_resolver() Get the default resolver, initializing it if necessary. | source code
reset_default_resolver() Re-initialize default resolver. | source code
query(qname, rdtype=1, rdclass=1, tcp=False, source=None, raise_on_no_answer=True, source_port=0) Query nameservers to find the answer to the question. | source code
dns.name.Name |
zone_for_name(name, rdclass=1, tcp=False, resolver=None) Find the name of the zone which contains the specified name. | source code
_getaddrinfo(host=None, service=None, family=0, socktype=0, proto=0, flags=0) | source code
_getnameinfo(sockaddr, flags=0) | source code
_getfqdn(name=None) | source code
_gethostbyname(name) | source code
_gethostbyname_ex(name) | source code
_gethostbyaddr(ip) | source code
override_system_resolver(resolver=None) Override the system resolver routines in the socket module with versions which use dnspython's resolver. | source code
restore_system_resolver() Undo the effects of override_system_resolver(). | source code

Variables | [hide private]
dns.resolver.Resolver object | default_resolver = `None` The default resolver object
| _protocols_for_socktype = ``{`1`:` `[`6`]``,` 2`:` `[`17`]``}``
| _resolver = `None` hash(x)
| __package__ = ``'``dns``'``

Function Details | [hide private]

### reset_default_resolver() | source code
Re-initialize default resolver. resolv.conf will be re-read immediatelly.

### query(qname, rdtype=1, rdclass=1, tcp=False, source=None, raise_on_no_answer=True, source_port=0) | source code
Query nameservers to find the answer to the question. This is a convenience function that uses the default resolver object to make the query. See Also: dns.resolver.Resolver.query for more information on the parameters.

### zone_for_name(name, rdclass=1, tcp=False, resolver=None) | source code
Find the name of the zone which contains the specified name. Parameters: `name` (absolute dns.name.Name object or string) - the query name `rdclass` (int) - The query class `tcp` (bool) - use TCP to make the query (default is False). `resolver` (dns.resolver.Resolver object or None) - the resolver to use Returns: dns.name.Name

### override_system_resolver(resolver=None) | source code
Override the system resolver routines in the socket module with versions which use dnspython's resolver. This can be useful in testing situations where you want to control the resolution behavior of python code without having to change the system's resolver settings (e.g. /etc/resolv.conf). The resolver to use may be specified; if it's not, the default resolver will be used. Parameters: `resolver` (dns.resolver.Resolver object or None) - the resolver to use