(base) [root@ip-172-31-23-114 configs]# ./certbot-auto renew --server https://acme-v02.api.letsencrypt.org/directory
/opt/eff.org/certbot/venv/local/lib/python2.7/dist-packages/OpenSSL/crypto.py:12: CryptographyDeprecationWarning: Python 2 is no longer supported by the Python core team. Support for it is now deprecated in cryptography, and will be removed in a future release.
from cryptography import x509
Saving debug log to /var/log/letsencrypt/letsencrypt.log
Processing /etc/letsencrypt/renewal/iot.smarttrak.info.conf
Cert is due for renewal, auto-renewing…
Plugins selected: Authenticator standalone, Installer None
Renewing an existing certificate
Performing the following challenges:
http-01 challenge for iot.smarttrak.info
Cleaning up challenges
Attempting to renew cert (iot.smarttrak.info) from /etc/letsencrypt/renewal/iot.smarttrak.info.conf produced an unexpected error: Problem binding to port 80: Could not bind to IPv4 or IPv6… Skipping.
All renewal attempts failed. The following certs could not be renewed:
/etc/letsencrypt/live/iot.smarttrak.info/fullchain.pem (failure)
All renewal attempts failed. The following certs could not be renewed:
/etc/letsencrypt/live/iot.smarttrak.info/fullchain.pem (failure)
1 renew failure(s), 0 parse failure(s)
(base) [root@ip-172-31-23-114 configs]# certbot --version
certbot 1.4.0
(base) [root@ip-172-31-23-114 configs]# uname -a
Linux ip-172-31-23-114 4.14.171-105.231.amzn1.x86_64 #1 SMP Thu Feb 27 23:49:15 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
(base) [root@ip-172-31-23-114 configs]# ls
certbot-auto iot.smarttrak.info…conf