https://blog.margrop.net/en/tag/certbot/ Recent content in Certbot on Margrop Blog Hugo -- gohugo.io en-US Tue, 19 Jan 2021 10:39:58 +0800 https://blog.margrop.net/en/post/lets-encrypt-use-dns-txt-acme-challenge-domain-available/ Tue, 19 Jan 2021 10:39:58 +0800 https://blog.margrop.net/en/post/lets-encrypt-use-dns-txt-acme-challenge-domain-available/ When we use letsencrypt to obtain the free HTTPS certificate, letsencrypt needs to verify the domain name. By default it authenticates like this: The certbot program places a file in the root directory of the web directory. The server of letsencrypt accesses this file through the domain name to verify that the domain name you applied for belongs to you. But sometimes we want to set HTTPS for a certain host on the intranet.