NginxSpamBlocker.sh

##
## Block referer spam on Nginx

#check if '/etc/nginx/conf.d/*.conf' is included in nginx.conf
root@fooserver:/etc/nginx# cat nginx.conf | grep include
	include /etc/nginx/mime.types;
	include /etc/nginx/conf.d/*.conf;
	include /etc/nginx/sites-enabled/*;

#create a blacklist
root@fooserver:/etc/nginx# cat conf.d/blacklist.conf
#spam websites to blacklist
map $http_referer $bad_referer {
    hostnames;

    default                           0;
    "~qualitymarketzone.com"          1;
    "~best-seo-software.xyz"          1;
    "~traffic2money.com"              1;
    "~trafficmonetize.org"            1;
    "~4webmasters.org"                1;
    "~100dollars-seo.com"             1;
    "~webmonetizer.net"               1;
}


root@fooserver:/etc/nginx# cat sites-enabled/default
server {
    listen 80;
    :
    server_name findsimilarmovies.com;
    #don't respond if it's the bad guy
    if ($bad_referer) {
        return 444;
    }
    :
    :
}
root@fooserver:/etc/nginx# sudo service nginx configtest
Testing nginx configuration: nginx.
root@fooserver:/etc/nginx# sudo service nginx reload
Reloading nginx configuration: nginx.

#test the new config
root@fooserver:/etc/nginx# curl -k --referer http://webmonetizer.net http://www.findsimilarmovies.com
curl: (52) Empty reply from server
root@fooserver:/etc/nginx#