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