Warning received while renewing LetsEncrypt

1

I got this warning while renewing my SSL cert by letsencrypt

Cert is due for renewal, auto-renewing…
Plugins selected: Authenticator standalone, Installer None
Renewing an existing certificate
Performing the following challenges:
tls-sni-01 challenge for erpXXXXfaXXX
> TLS-SNI-01 is deprecated, and will stop working soon.

Please look into this

2

You can exclude specific protocols in the apache2-ssl.conf file by changing the SSLProtocol line …something like this…

SSLProtocol All -SSLv2 -SSLv3 -TLSv1 -TLSv1.1

and then retrying the certbot