data/conc-proxy/default.conf

server {
    listen       80;
    server_name  localhost;

    #charset koi8-r;
    #access_log  /var/log/nginx/host.access.log  main;

    location / {
        root   /usr/share/nginx/html;
        index  index.html index.htm;
    }

    #error_page  404              /404.html;

    # redirect server error pages to the static page /50x.html
    #
    error_page   500 502 503 504  /50x.html;
    location = /50x.html {
        root   /usr/share/nginx/html;
    }

    # proxy the PHP scripts to Apache listening on 127.0.0.1:80
    #
    #location ~ \.php$ {
    #    proxy_pass   http://127.0.0.1;
    #}

    # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
    #
    #location ~ \.php$ {
    #    root           html;
    #    fastcgi_pass   127.0.0.1:9000;
    #    fastcgi_index  index.php;
    #    fastcgi_param  SCRIPT_FILENAME  /scripts$fastcgi_script_name;
    #    include        fastcgi_params;
    #}

    # deny access to .htaccess files, if Apache's document root
    # concurs with nginx's one
    #
    #location ~ /\.ht {
    #    deny  all;
    #}

    location /cs-pt/ {
        proxy_pass   http://conc-cspt/;
    }
    location /de-pt/ {
        proxy_pass   http://conc-dept/;
    }
    location /en-pt/ {
        proxy_pass   http://conc-enpt/;
    }
    location /es-pt/ {
        proxy_pass   http://conc-espt/;
    }
    location /fr-pt/ {
        proxy_pass   http://conc-frpt/;
    }
    location /it-pt/ {
        proxy_pass   http://conc-itpt/;
    }
    location /pt-sk/ {
        proxy_pass   http://conc-ptsk/;
    }
}