設定事件訂閱的使用者端TLS

server {

    listen 443 ssl default_server;
    # ... existing SSL configuration for server authentication ...

    ssl_verify_client on;
    ssl_client_certificate /path/to/DigiCert_Global_Root_CA.pem;
    ssl_verify_depth 2;

        # ... existing location configuration ...
    }
}

Listen 443
<VirtualHost *:443>
    # ... existing SSL configuration for server authentication ...

    SSLVerifyClient require
    SSLCACertificateFile "/path/to/DigiCert_Global_Root_CA.pem"
    SSLVerifyDepth 2
</VirtualHost>

<Directory /var/www/>
    Require expr "%{SSL_CLIENT_S_DN_CN} == <>"

    # ... existing directory configuration ...
</Directory>