https://nginx.org/ru/docs/
https://docs.nginx.com/nginx/admin-guide/installing-nginx/installing-nginx-docker/#

Пути

# www root
/usr/share/nginx/html
# conf
/etc/nginx/nginx.conf
/etc/nginx/conf.d/default.conf
# includes
/etc/nginx/conf.d/*.conf

# IP со счётчиком
cat /var/log/nginx/access.log |grep site |grep 200 |awk '{print $1}' |sort |uniq -c > ips.txt

https://www.the-art-of-web.com/system/logs/

nano /etc/nginx/nginx.conf
 
## Block spammers and other unwanted visitors  ##
include /etc/nginx/banlist.conf;
 
nano /etc/nginx/banlist.conf
 
deny 1.2.3.4;
deny 91.212.45.0/24;
 
# тест настроек
nginx -t
 
# перечитать конфиг (не рвёт соединения)
nginx -s reload