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diff --git a/external/unbound/libunbound/python/doc/intro.rst b/external/unbound/libunbound/python/doc/intro.rst new file mode 100644 index 000000000..f751f54c0 --- /dev/null +++ b/external/unbound/libunbound/python/doc/intro.rst @@ -0,0 +1,39 @@ +Introduction +=================================== + +**Unbound** + + `Unbound`_ is an implementation of a DNS resolver, that performs caching and DNSSEC validation. + Together with unbound, the libunbound library is provided. + This library can be used to convert hostnames to ip addresses, and back, as well as obtain other information. + Since the resolver allows to specify the class and type of a query (A record, NS, MX, ...), this library offers powerful resolving tool. + The library also performs public-key validation of results with DNSSEC. + + .. _Unbound: http://www.unbound.net/documentation + +**pyUnbound** + + The pyUnbound is an extension module for Python which provides an object-oriented interface to libunbound. + It is the first Python module which offers thread-safe caching resolver. + + The interface was designed with the emphasis on the simplicity of use. + There are two main classes :class:`unbound.ub_ctx` (a validation and resolution context) and :class:`unbound.ub_result` which contains the validation and resolution results. + The objects are thread-safe, and a context can be used in non-threaded as well as threaded environment. + Resolution can be performed blocking and non-blocking (i.e. asynchronous). + The asynchronous method returns from the call immediately, so that processing can go on, while the results become available later. + +**Features** + * customizable caching validation resolver for synchronous and asynchronous lookups + * easy to use object interface + * easy to integrate extension module + * designed for thread environment (i.e. thread-safe) + * allows define and customize of local zone and its RR's during the operation (i.e. without restart) + * includes encoding functions to simplify the results retrieval + * Internationalized domain name (`IDN`_) support + + .. _IDN: http://en.wikipedia.org/wiki/Internationalized_domain_name + +**Application area** + * DNS-based applications performing DNS lookups; the caching resolver can reduce overhead + * Applications where the validation of DNS records is required + * Great solution for customizable and dynamic DNS-based white/blacklists (spam rejection, connection rejection, ...) using the dynamic local zone manipulation |