Nginx+SSL, Authentification based on certificate

[Nestap]

privet vsem,

vot takoi vapros mojet ktota stolknulsea s etoi problemi:

Mne nado nastroiti Nginx server tak stob authentificatia na servere
https(ssl) pri pomashiu client certificata no stob server prinimal
certificati ot nescoliko CA authority.

Ia nastroil dlya odnova CA center i vseo rabotaet otlichino no haciu
dabaviti 2 ca center. 

vot kak ya nastroil dlya odnovo CA:

        ssl_certificate      /etc/nginx/ssl/server.cer;
        ssl_certificate_key  /etc/nginx/ssl/server.key;
        ssl_client_certificate /etc/nginx/ssl/ca.cer;
        ssl_verify_client on;
        ssl_verify_depth 2;

Posted at Nginx Forum: http://forum.nginx.org/read.php?21,220571,220571#msg-220571