How to deny an IP in Nginx server with Wordpress?

Hi! I have a wordpress page with Ubuntu and Nginx. I know .htaccess does not work with nginx for block IPs.

I try to deny one IP per exemple my mobile ip: 123.123.123.123 in IPTables unsuccessfully with this:

iptables -A INPUT -s 123.123.123.123 -j DROP iptables -A OUTPUT -s 123.123.123.123 -j DROP sudo /sbin/iptables-save I can open my website

I also try with virtual servers in /etc/nginx/sites-available/mydomain.com

server { listen 80; root /var/www/html/myfolder; index index.php index.html index.html server_name mydomain.com www.mydomain.com; rewrite ^/sitemap_index.xml$ /index.php?sitemap=1 last; rewrite ^/([^/]+?)-sitemap([0-9]+)?.xml$ /index.php?sitemap=$1&sitemap_n=$2 last; location / { deny 123.123.123.123; try_files $uri $uri/ /index.php?q=$uri&$args; }

then reload / restar Nginx and i also can open my website from my IP…

Is something wrong? PD:Sorry my English… im from Spain