1.. _example_resolver_only:
2
3==============================
4Resolver only
5==============================
6
7This example program shows how to perform DNS resolution only.
8Unbound contains two basic modules: resolver and validator.
9In case, the validator is not necessary, the validator module can be turned off using "module-config" option.
10This option contains a list of module names separated by the space char. This list determined which modules should be employed and in what order.
11
12::
13
14	#!/usr/bin/python
15	import os
16	from unbound import ub_ctx,RR_TYPE_A,RR_CLASS_IN
17	
18	ctx = ub_ctx()
19	ctx.set_option("module-config:","iterator")
20	ctx.resolvconf("/etc/resolv.conf")
21	
22	status, result = ctx.resolve("www.google.com", RR_TYPE_A, RR_CLASS_IN)
23	if status == 0 and result.havedata:
24	
25	    print "Result:", result.data.address_list
26
27.. note::
28   The :meth:`unbound.ub_ctx.set_option` method must be used before the first resolution (i.e. before :meth:`unbound.ub_ctx.resolve` or :meth:`unbound.ub_ctx.resolve_async` call). 
29
30