iptables -F
iptables -A INPUT -i lo -j ACCEPT
iptables -A INPUT -s 178.45.0.0/16 -j ACCEPT -m comment --comment "ip doma"
iptables -A INPUT -s 81.22.0.0 -j ACCEPT -m comment --comment "ip_tel_office"
iptables -P INPUT DROP
iptables -P FORWARD DROP
iptables -P OUTPUT ACCEPT