Is it possible to renew certs from letsencrypt with just the private key and fullchain file?

If not, can one just remove all the letsencrypt files and .well-known directory and apply for new certification using certbot or other programs? Or would I need to wait for the current cert to expire?

A small company approached me with this issue of not being able to renew their certs. I found everything to be a mess to where I'm not sure how it was done in the past.

  1. you can, but it might be a bit tricky

  2. this is faster way - remove let's encrypt certs and use certbot to generate new cert. you don't have to wait for it to expire.


I have found that it is better to simply generate a new cert. I have personally not had great luck renewing and fail to see the advantage over

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