Let's encrypt error certificate install error - “Client with the currently selected authenticator does not support any combination of challenges” [closed]

Answer 1

Since I'm using apache, I used this format,

sudo ./certbot-auto --authenticator webroot --webroot-path <path-to-webroot> --installer apache -d <your-domain>

e.g.

sudo ./certbot-auto --authenticator webroot --webroot-path /var/www/html --installer apache -d mydomain.com

Answer 2

run the command and change match inside the tags <>

sudo certbot --authenticator webroot --webroot-path <path to served directory> --installer apache -d <domain>

Answer 3

This is what worked for me:

certbot --authenticator standalone --installer apache -d <domain> \
--pre-hook "systemctl stop apache2" \
--post-hook "systemctl start apache2"

Answer 4

You can try using the following commands:

certbot --authenticator standalone --installer apache -d <domain>
systemctl rest apache2

Answer 5

It is because Let’s Encrypt has currently disabled the TLS-SNI-01 challenge due to an identified security issue.

The official has provided an workaroud at the Let's Encrypt community website as following:

If you’re serving files for that domain out of a directory on that server, you can run the following command:

sudo certbot --authenticator webroot --webroot-path <path to served directory> --installer nginx -d <domain>

If you’re not serving files out of a directory on the server, you can temporarily stop your server while you obtain the certificate and restart it after Certbot has obtained the certificate. This would look like:

sudo certbot --authenticator standalone --installer nginx -d <domain> --pre-hook "service nginx stop" --post-hook "service nginx start"

2018-01-19 update

Let’s Encrypt just released Certbot 0.21.0, which use HTTP-01 challenge type instead of the compromised TLS-SNI-01 by default for apache httpd and nginx. Update your certbot to get rid of this issue.

Answer 6

This works for ubuntu with nginx

sudo apt-get install --only-upgrade certbot
certbot renew