Block ssh public using iptables

iptables -A INPUT -i eno1 -p tcp --dport 8567 -j DROP
iptables -A INPUT -i vmbr0 -p tcp --dport 8567 -j DROP

iptables-save > /etc/iptables/rules.v4

di /etc/network/interface
post-up iptables-restore < /etc/iptables/rules.v4