Error message in not being able to issue a cert

Hi I am not being issued a cert due to failed connection to Is it possible for me to use port 80?

Thank you,

You need to use the http-01 challenge instead of tls-sni-01. If you’re using certbot use --webroot instead of --apache, or with --standalone add --standalone-supported-challenges http-01

i tried using standalone mode but there is another error message that states that port 80 has been used. is there anyway where i can free port 80?

The short answer is stop whatever is using port 80. Do you have apache or nginx running ? if so, then just stop that whilst obtaining the certificate.

Or if the certificate actually is for the web server that’s running, then rather than turn it off to use standalone try the webroot suggestion


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