Ubuntu Portfowarding

iptables 조회

sudo iptables -t nat -L --line-numbers

포트포워딩 등록

sudo iptables -t nat -A PREROUTING -p tcp --dport 80 -j REDIRECT --to-port 80

포트포워딩 삭제

sudo iptables -t nat -D PREROUTING {num 숫자}