This is probably not the answer to your question. But there are those who are facing the same problem and have not installed iptable

** you may try installing the iptables package as shown below as per your choice of distribution. **

Distribution Command Debian apt-get install iptables Ubuntu apt-get install iptables Alpine apk add iptables Arch Linux pacman -S iptables Kali Linux apt-get install iptables CentOS yum install iptables Fedora dnf install iptables Raspbian apt-get install iptables

This is probably not the answer to your question. But there are those who are facing the same problem and have not installed iptable

you may try installing the iptables package as shown below as per your choice of distribution.