Unable to locally verify the issuer’s authority (Verisign) problem with Nginx

In some browsers like konqueror and old firefox verions we were getting this problem.

                          Unable to locally verify the issuer’s authority

To solve this you must use an intermediate certificate, to download this intermediate certificate you must contatct your provider, in our case was Verising https://knowledge.verisign.com/support/ssl-certificates-support/index?page=content&id=AR1735 

Inspect your certificate to check the version you are using.

With this new cwertificate in hands create a “bundle” certificate; cat your_domain_certificate.crt intermediate_certifica.crt >> bundle.crt .

Configure your nginx with this new certificate

# SSL configuration
 ssl on;
 ssl_certificate /PATH/bundle.crt;
ssl_certificate_key /PATH/server_valid.key;

ssl_session_timeout 30m;

ssl_protocols SSLv3 TLSv1;
 ssl_ciphers ALL:!ADH:!EXPORT56:RC4+RSA:+HIGH:+MEDIUM:+LOW:+SSLv3:+EXP;
 ssl_prefer_server_ciphers on;