The nginx's problem

gistfile1.txt

server
{
        listen 80;
        server_name abc.hello.com;

        location /abc/ {
                #proxy_redirect off;
                proxy_set_header Host $host;
                proxy_set_header X-Real-IP $remote_addr;
                proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
                proxy_pass http://192.168.1.12:8080/abc/;

        }
        access_log /var/log/nginx/abc_access.log;
        error_log /var/log/nginx/abc_error.log;
}