Question
Certbot Error when trying to install MQTT on CentOS 7
- Posted September 17, 2019
- Let's EncryptMiscellaneous
When following the steps here
All works up to the end of Step2. Command
sudo certbot certonly --standalone --standalone-supported-challenges http-01 -d mqtt.example.com
where I replace example.com with my domain returns
certbot: error: unrecognized arguments: -standalone-supported-challenges http-01
Subscribe
Share
Submit an answer
You can type!ref in this text area to quickly search our full set of tutorials, documentation & marketplace offerings and insert the link!
Sign in to AnswerThese answers are provided by our Community. If you find them useful, show some love by clicking the heart. If you run into issues leave a comment, or add your own answer to help others.
Hello,
What is your certbot version? It seems like as of Certbot 0.33.0 which was released a couple of months ago and according to the official documentation,
--standalone-supported-challengeshad been deprecated for a long time and does the same thing as--preferred-challenges.https://community.letsencrypt.org/t/certbot-0-33-0-release/90298/2
I’ll ask for the tutorial to be updated.
Let me know if this was the case. Regards, Bobby
Thank you for the quick answer. I asked a friend for help since this was above my pay grade. He used the command certbot certonly --preferred-challenges http -d mydomain.com and it worked. He says an update to the doc would be good. He also says that since there was already installed a listener on port 80, the --standalone option was not required. This could be specified in the doc also.