AlmaLinux 8 - iptables.sh

#systemctl stop firewalld
#systemctl disable firewalld
#systemctl mask firewalld

#yum -y install iptables-services
#systemctl enable iptables
#systemctl start iptables

iptables -P OUTPUT ACCEPT
iptables -P INPUT ACCEPT
iptables -P FORWARD DROP
iptables -F
iptables -A INPUT -i lo -j ACCEPT
iptables -A INPUT -m state --state ESTABLISHED -j ACCEPT
iptables -A INPUT -p tcp --dport 22446 -j ACCEPT
iptables -A INPUT -p tcp --dport 80 -j ACCEPT
iptables -A INPUT -p udp -s 141.8.113.244 --dport 161 -j ACCEPT
iptables -A INPUT -p tcp --dport 443 -j ACCEPT
iptables -A INPUT -p udp --dport 1812 -j ACCEPT
iptables -A INPUT -p udp --dport 1813 -j ACCEPT
iptables -P INPUT DROP
iptables -L -v -n
service iptables save

ip6tables -P OUTPUT ACCEPT
ip6tables -P INPUT DROP
ip6tables -P FORWARD DROP
ip6tables -F
ip6tables -L -v -n
service ip6tables save

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