# Best Practices Using a Perl Client Module?

**URL:** <https://community.letsencrypt.org/t/best-practices-using-a-perl-client-module/33446>\
**Category:** Client dev\
**Created:** [May 5, 2017, 6:55am UTC](https://community.letsencrypt.org/t/best-practices-using-a-perl-client-module/33446 "2017-05-05T06:55:26Z")\
**Posts on this page:** 1\
**Showing post:** 37

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**Author:** ![ahaw021](https://sea3.discourse-cdn.com/letsencrypt/user_avatar/community.letsencrypt.org/ahaw021/32/14882_2.png) [@ahaw021](https://community.letsencrypt.org/u/ahaw021)\
**Post date:** [June 5, 2017, 12:36pm UTC](https://community.letsencrypt.org/t/best-practices-using-a-perl-client-module/33446/37 "2017-06-05T12:36:36Z")

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hi @SteveTheTechie

This is probably because boulder doesn't use public resolvers 😃

> [@Challenge creation issue and pending authorization rate limit](https://community.letsencrypt.org/t/challenge-creation-issue-and-pending-authorization-rate-limit/31426/4):
>
> …

So when you run your queries don't run them against a public dns (google etc) run them against the specific name servers.

Andrei

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