fix?

CONFIG.sh

@@ -1,11 +1,14 @@
-# firewall configuration
-sudo yum install -y iptables-services
-sudo systemctl stop firewalld
-sudo systemctl disable firewalld
-sudo systemctl mask firewalld
-sudo systemctl enable iptables
-sudo iptables -F
+alias s="sudo systemctl"
 
 function instalar() {
     yum list installed "$1" &>/dev/null && echo "$1 já instalado" || sudo yum install -y "$1"
 }
+
+function ativar_firewall() {
+    instalar iptables-services
+    s stop firewalld
+    s disable firewalld
+    s mask firewalld
+    s enable iptables
+    sudo iptables -F
+}