How to fix Attempting to renew cert from /etc/letsencrypt/renewal/example.com.conf produced an unexpected error: Problem binding to port 443: Could not bind to IPv4 or IPv6.. Skipping.

Published by Igor Khrupin on

Issue:

Attempting to renew cert from /etc/letsencrypt/renewal/example.com.conf produced an unexpected error: Problem binding to port 443: Could not bind to IPv4 or IPv6.. Skipping.

How to fix:

Just stop webserver before renew letsencrypt.

sudo service nginx stop
cd letsencrypt
sudo ./letsencrypt-auto renew
sudo service nginx start

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