How to use different ssl settings in nginx for one domain? - nginx

Question

I have nginx with ssl_verify_client on. But I have some apps that can't use ssl_verify_client.
How I can create some exclusion rules based on IP.
Now my config looks like this. The whitelist allows you to bypass the verification, but the server still sends the client a request for a certificate (ssl_verify_client on). This works for the browser (you can skip the certificate request), but doesn't work for my application.
geo $white_list {
33.21.26.0/24 1;
}
server {
listen 91.21.2.3:443 ssl;
server_name my.domain.com;
access_log /var/log/nginx/access-my_domain.com.log combined_ssl;
access_log /var/log/nginx/access.log;
error_log /var/log/nginx/error_id_domain.com.log debug;
keepalive_timeout 70;
ssl on;
ssl_stapling on;
ssl_stapling_verify on;
include ssl.conf;
ssl_client_certificate /etc/nginx/SB.pem;
ssl_trusted_certificate /etc/nginx/RT.pem;
ssl_verify_client on;
ssl_verify_depth 2;
ssl_session_timeout 25m;
ssl_session_cache shared:SSL:10m;
ssl_protocols TLSv1.2 TLSv1.1 TLSv1;
ssl_prefer_server_ciphers on;
ssl_ciphers 'ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-DSS-AES128-GCM-SHA256:kEDH+AESGCM:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA:ECDHE-ECDSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:DHE-DSS-AES128-SHA256:DHE-RSA-AES256-SHA256:DHE-DSS-AES256-SHA:DHE-RSA-AES256-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:AES:CAMELLIA:DES-CBC3-SHA:!aNULL:!eNULL:!EXPORT:!DES:!RC4:!MD5:!PSK:!aECDH:!EDH-DSS-DES-CBC3-SHA:!EDH-RSA-DES-CBC3-SHA:!KRB5-DES-CBC3-SHA';
add_header Strict-Transport-Security "max-age=31536000";
location / {
if ($white_list) {set $client_valid true;}
if ($ssl_client_s_dn ~* "CN=(.*)") { set "$cn_user" "$1"; }
if (-f "/etc/nginx/users/$cn_user" ) { set $client_valid true;}
if ($client_valid != "true" ) { return 403; }
proxy_pass https://my.domain.com;
proxy_ssl_verify off;
proxy_set_header Host $host;
proxy_read_timeout 300;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
add_header Front-End-Https on;
proxy_http_version 1.1;
proxy_set_header Connection "";
client_max_body_size 0;
proxy_redirect off;
}
}
Create a rule (map) that will disable client certificate request.