Old Let's Encrypt CA certificates became invalid on 30.09.2021:
https://letsencrypt.org/docs/dst-root-ca-x3-expiration-september-2021/
All TDS certificates are already signed by new Let's Encrypt authority for 6 months approximately. Thanks to cross signing it worked until expiry 30.09.2021.
Therefore you have to make sure that all your tools trust that new CA certificates which were created in 2015 but still is not distributed everywhere.
Issues are usually caused by outdated tools installed or Let's Encrypt certificate missing in trusted CA stores.
Install latest ca certs package
yum install ca-certificates |
If it still does not work, download CA certificate in PEM format into /etc/pki/ca-trust/source/anchors/ folder:
wget https://letsencrypt.org/certs/isrgrootx1.pem -O /etc/pki/ca-trust/source/anchors/isrgrootx1.crt update-cacerts |
https://letsencrypt.org/docs/dst-root-ca-x3-expiration-september-2021/
https://www.openssl.org/blog/blog/2021/09/13/LetsEncryptRootCertExpire/
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