i have done a new server install with Debian 9.3 & current iMSCP stable 1.5.1, apache, php 7.1.13 php-fpm & MariaDB 10.2 - everyting worked fine and i get also everything working without any challenge.
But now i have tried to move my first domain from old server (Debian 8, apache, Mysql 5.6, php fcgi 5.6/7.0/7.1.10 with i-MSCP 1.2.11, Build: 20160106, Codename: Andromeda) to the new one - everything no problem until i tried to add the SSL certificate in iMSCP, with the error:
"At least one intermediate certificate is invalid or missing"
at the old server, the same SSL certificate is working without any problem, and could be added in iMSCP admin panel for the client within a second and no error - at new server, no chance - always the error - i have copied everything 1:1 as well now also double checked with cloudflare (COMODO CA Limited certificate), where the certificate comes from - everything correct and active
The old server is still active - when i switch the domain with the IP - everything fine - but at new server with new iMSCP 1.5.1 & Debian 9.3 - only error with adding in iMSCP admin panel
Also when i open the Website at new server - Cloudflare shows the frontend with SSL connection - but i need for different backend tasks a "full" level - this is only possible, when i assign the certificate directly to the server, which was at old system no problem and there also still working
I hope anybody can help - or have been there any changes at 1.5.1 regarding certificate? (admin panel for this step looks the same)
Thank you !
Additional information .... I got now an error message, maybe it belongs to this challenge (first time, i don't know if it is relating my probleme with the certificate):
Nachrichtenpriorität : Error
[IP address] Could not write in
/var/www/imscp/gui/data/tmp/3-openssl.cnfazJJpD openssl temporary