diff --git a/CONFIG.sh b/CONFIG.sh
index 38cbef0..dda2617 100644
--- a/CONFIG.sh
+++ b/CONFIG.sh
@@ -4,4 +4,8 @@ sudo systemctl stop firewalld
 sudo systemctl disable firewalld
 sudo systemctl mask firewalld
 sudo systemctl enable iptables
-sudo iptables -F
\ No newline at end of file
+sudo iptables -F
+
+function instalar() {
+    yum list installed "$1" &>/dev/null && echo "$1 já instalado" || sudo yum install -y "$1"
+}
diff --git a/FIREWALL.sh b/FIREWALL.sh
index a1f5f76..a71a782 100644
--- a/FIREWALL.sh
+++ b/FIREWALL.sh
@@ -9,10 +9,6 @@ sudo ifconfig enp0s8 $IP_EXTERNAL netmask 255.255.255.0
 sudo ifconfig enp0s9 $IP_INTERNAL netmask 255.255.255.0
 
 # instalar mod security e apache
-function instalar() {
-    yum list installed "$1" &>/dev/null && return || sudo yum install -y "$1"
-}
-
 instalar epel_release
 instalar httpd
 instalar mod_security
diff --git a/WEB_SERVER.sh b/WEB_SERVER.sh
index 2a2da74..e3008a5 100644
--- a/WEB_SERVER.sh
+++ b/WEB_SERVER.sh
@@ -7,16 +7,19 @@ IP="10.60.0.2"
 sudo ifconfig enp0s8 $IP netmask 255.255.255.0
 sudo route add default gw 10.60.0.1
 
-# instalar node
-yum list installed nodejs &>/dev/null && echo "Node already installed..." || sudo yum install -y nodejs
+# instalar packages
+instalar nodejs
 
 # instalar juice-shop se nao existir
-if [[ ! -d $HOME/juice-shop ]]; then
+jspath="/var/juice-shop"
+if [[ ! -d "$jspath" ]]; then
+    mkdir "$jspath"
 	curl -o js.tar.gz "https://github.com/juice-shop/juice-shop/releases/download/v20.0.0/juice-shop-20.0.0_node24_linux_x64.tgz"
-	tar -xzvf js.tar.gz $HOME/juice-shop
+	tar -xzvf js.tar.gz "$jspath"
+    rm js.tar.gz
+    cd "$jspath"
+    npm i
 fi
 
 # correr juice shop via npm
-cd $HOME/juice-shop
-npm install
 npm start