-a, --AddHeader strings the headers you will add,for explame cookie: 123,Referer: https://www.baidu.com
-b, --bypassip strings the ip or ips you will add behind some header like x-client-ip: 192.168.1.1,for example,-b 192.168.1.1,30.1.1.1 and the default values are 127.0.0.1,localhost
-h, --help help for f403
-p, --proxy string the proxy you will use,support http and socks5 ,for example: -p http://127.0.0.1:8080 or -p socks5://127.0.0.1:8080
-u, --url string the target url
./f403 -u http://www.google.com/admin/
./f403 -u http://www.google.com/admin/ -a cookie:123,Origin:https://30.110.0.0 -p http://127.0.0.1:60090 -b 39.122.1.1