LetsEncrypt ‘Client with the currently selected authenticator does not support any combination of challenges that will satisfy the CA’ Fix

when you installing a new letsencrypt ssl for a domain with certbot

# certbot –apache -d mydomain.com

I got “Client with the currently selected authenticator does not support any combination of challenges that will satisfy the CA”  error message

As mentioned in the following url, my ubuntu  cerbot package from ppa:certbot/certbot repo is outdated.

https://community.letsencrypt.org/t/solution-client-with-the-currently-selected-authenticator-does-not-support-any-combination-of-challenges-that-will-satisfy-the-ca/49983

Solution until we get a package update for certbot:
Stop apache temporarily run the following command when you finish your certification process. Start apache again.

# /etc/init.d/apache2 stop

# certbot –authenticator standalone –installer apache -d  mydomain.com

# /etc/init.d/apache2 start

If you are using nginx simply change the installer parameter apache with nginx

Alternatively you can update your certbot with certbot-auto

ismail yenigul

AWS Certified Cloud Expert

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LetsEncrypt ‘Client with the currently selected authenticator does not support any combination of challenges that will satisfy the CA’ Fix

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