#!/usr/bin/env bash install() { sudo firewall-cmd --zone=public --permanent --add-port=53317/tcp sudo firewall-cmd --zone=public --permanent --add-port=53317/udp sudo firewall-cmd --reload } uninstall() { sudo firewall-cmd --zone=public --permanent --remove-port=53317/tcp sudo firewall-cmd --zone=public --permanent --remove-port=53317/udp sudo firewall-cmd --reload } arg=${1:-""} [[ $arg == "install" ]] && install [[ $arg == "uninstall" ]] && uninstall