iptables 基本コマンド

February 23, 2022

iptables
Linux
Security

よくつかう iptables のコマンド

Display current setting

iptables -L

Setting file

vi /etc/sysconfig/iptables

-A INPUT -p tcp -m state --state NEW -m tcp --dport 22 -j ACCEPT
-A INPUT -p tcp -m state --state NEW -m tcp --dport 80 -j ACCEPT
-A INPUT -p tcp -m state --state NEW -m tcp --dport 443 -j ACCEPT

# command
iptables -A INPUT -m tcp -p tcp --dport 22 -j ACCEPT
iptables -A INPUT -m tcp -p tcp --dport 80 -j ACCEPT
iptables -A INPUT -m tcp -p tcp --dport 443 -j ACCEPT

# after
iptables save
service iptables reload