nginx snippet for anonymized log

gistfile1.txt

map $remote_addr $remote_addr_anon {
	~(?P<ip>\d+\.\d+\.\d+)\.    $ip.0;
	~(?P<ip>[^:]+:[^:]+):       $ip::;
	default                     0.0.0.0;
}

log_format combined_ssl '$remote_addr_anon - $remote_user [$time_local] '
						'$ssl_protocol/$ssl_cipher '
						'"$request" $status $body_bytes_sent '
						'"$http_referer" "$http_user_agent"';