ufw

ufw 是 ubuntu专用的防火墙,使用起来很方便

useage

# install
sudo apt install ufw
# look into the current status
sudo ufw status
# run
sudo ufw enable
# config allow--sudo ufw allow Prot/Applet
sudo ufw allow 22   
sudo ufw allow 80
sudo ufw allow 443

# conifg deny
sudo ufw deny 22

# disbale
sudo ufw disabled

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