修改nginx网站配置文件:
location ~ .*\.(gif|jpg|jpeg|png|bmp|swf)$ { valid_referers none blocked *.smilefrog.net *.google.com *.baidu.com *.bing.com; if ($invalid_referer) { rewrite ^/ https://www.smilefrog.net/wp-content/uploads/2018/08/smilefrog_no.png; #return 404; } expires 30d; }