# Certbot dns-01 challenge on CentOS 7.9

**URL:** <https://community.letsencrypt.org/t/certbot-dns-01-challenge-on-centos-7-9/172541>\
**Category:** Help\
**Created:** [February 22, 2022, 6:15pm UTC](https://community.letsencrypt.org/t/certbot-dns-01-challenge-on-centos-7-9/172541 "2022-02-22T18:15:48Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![kaushalshriyan](https://avatars.discourse-cdn.com/v4/letter/k/958977/32.png) [@kaushalshriyan](https://community.letsencrypt.org/u/kaushalshriyan)\
**Post date:** [February 22, 2022, 6:15pm UTC](https://community.letsencrypt.org/t/certbot-dns-01-challenge-on-centos-7-9/172541/1 "2022-02-22T18:15:48Z")

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Hi,

I am running certbot 1.11.0 client on CentOS Linux release 7.9.2009 (Core) to renew Let's Encrypt SSL Certificates. Is there a way to use DNS based challenge to renew LE SSL Certs? Any step-by-step guide to follow it?

Thanks in advance.

Best Regards,

Kaushal

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**Author:** ![Rip](https://sea3.discourse-cdn.com/letsencrypt/user_avatar/community.letsencrypt.org/rip/32/70863_2.png) [@Rip](https://community.letsencrypt.org/u/Rip)\
**Post date:** [February 22, 2022, 6:25pm UTC](https://community.letsencrypt.org/t/certbot-dns-01-challenge-on-centos-7-9/172541/2 "2022-02-22T18:25:40Z")

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Hi @kaushalshriyan and Welcome to the forum.  
Take a read on these!

> **[Getting Started - Let's Encrypt](https://letsencrypt.org/getting-started/)**
>
> To enable HTTPS on your website, you need to get a certificate (a type of file) from a Certificate Authority (CA). Let’s Encrypt is a CA. In order to get a certificate for your website’s domain from Let’s Encrypt, you have to...

> **[Challenge Types - Let's Encrypt](https://letsencrypt.org/docs/challenge-types/)**
>
> When you get a certificate from Let’s Encrypt, our servers validate that you control the domain names in that certificate using “challenges,” as defined by the ACME standard. Most of the time, this validation is handled automatically by your ACME...

Hope this helps!

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**Author:** ![\_az](https://avatars.discourse-cdn.com/v4/letter/_/22d042/32.png) [@\_az](https://community.letsencrypt.org/u/_az)\
**Post date:** [February 22, 2022, 7:28pm UTC](https://community.letsencrypt.org/t/certbot-dns-01-challenge-on-centos-7-9/172541/3 "2022-02-22T19:28:02Z")

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Mainly, it depends who is hosting the DNS for your domain. Sharing that (or your domain name) is a good first step to getting help.

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**Author:** ![system](https://global.discourse-cdn.com/letsencrypt/original/3X/c/a/ca6c06ea1ea201324bba7048c6841ce60236468d.png) [@system](https://community.letsencrypt.org/u/system)\
**Post date:** [March 24, 2022, 7:28pm UTC](https://community.letsencrypt.org/t/certbot-dns-01-challenge-on-centos-7-9/172541/4 "2022-03-24T19:28:31Z")

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