5001을 없애고 나면 팬명록이 보이질 않아서 다른 질문들을 통해 계속 수정해보았지만 변화가 없습니다.

포트포워딩?의 문제인 것 같아요

처음에 5000으로 입력했었는데 지우고 다시 입력해야하는 것 같은데 어떻게 해야할지 모르겠습니다

ubuntu@ip-172-31-39-217:~/sparta$ python app.py

 * Serving Flask app 'app'

 * Debug mode: on

WARNING: This is a development server. Do not use it in a production deployment. Use a production WSGI server instead.

 * Running on all addresses (0.0.0.0)

 * Running on http://127.0.0.1:5001

 * Running on http://172.31.39.217:5001

Press CTRL+C to quit

 * Restarting with stat

 * Debugger is active!

 * Debugger PIN: 119-642-801

121.152.166.16 - - [01/Feb/2023 08:08:46] "GET / HTTP/1.1" 200 -

121.152.166.16 - - [01/Feb/2023 08:08:47] "GET /homework HTTP/1.1" 200 -

121.152.166.16 - - [01/Feb/2023 08:08:47] "GET /favicon.ico HTTP/1.1" 404 -

121.152.166.16 - - [01/Feb/2023 08:08:59] "GET / HTTP/1.1" 200 -

121.152.166.16 - - [01/Feb/2023 08:08:59] "GET /homework HTTP/1.1" 200 -

121.152.166.16 - - [01/Feb/2023 08:10:27] "GET / HTTP/1.1" 200 -

121.152.166.16 - - [01/Feb/2023 08:10:27] "GET /homework HTTP/1.1" 200 -

sudo iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-port 5001

sudo iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-port 5001

sudo iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-port 5001

121.152.166.16 - - [01/Feb/2023 08:20:03] "GET / HTTP/1.1" 200 -

121.152.166.16 - - [01/Feb/2023 08:20:03] "GET /homework HTTP/1.1" 200 -

녀  

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

sudo iptables -t nat -D PREROUTING 1