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Resolved SSL Certificate lead to ssl_error_illegal_parameter_alert on some browers

Pascal_Netenvie

Regular Pleskian
Hi,
We have an e-commerce website running on a plesk Server (Debian 8.4‬ with Plesk version 12.5.30 Update #37) and using an SSL Certificate from Comodo.

On some browsers (mainly Firefox but also Chromium on android) we get this error :
ssl_error_illegal_parameter_alert

Does anyone know how to deal with that ?

Regards.
 
Hi Lloyd,
Thx, yes i already saw this stacko post but it concern only Firefox.
But if i understand it well it allow Firefox to connect with other protocol than TLS and fallback to another one ?

How to know what ciphers and protocols are set for Apache/Nginx?

Regards.
Pascal.
 
I know this test and use it regularly.

Ok for config file.

This Plesk KB is very good, thx.
I just used it and it seems it solved my problem (gat to wait 1/2 days to see).
I change the post to Resolved for now.

Thanks.
 
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