Hi Jürgen,
> frontend https-in > bind :443 ssl crt /var/proxy/certs/fallback.pem crt > /var/proxy/certs/domain1.pem crt /var/proxy/certs/domain2.pem ca-file > /var/proxy/certs/RapidSSL_Intermediate_CA.pem > use_backend ssl_backend The intermediate must not be a "ca-file", but a "crt". The ca-file is used when you do client certificate validation. > This is working on most client platform but some customers reported > errors in their browers, mainly from Windows OS but not only from IE but > also from FF or Chrome. I can only recommend to run this trough the following test: https://www.ssllabs.com/ssltest/ It pinpoints any issues with your SSL configuration, including chaining issues (should say "Chain issues: None"). Lukas
