Update f2b+ufw.sh

install/f2b+ufw.sh

@@ -1,5 +1,4 @@
 
-
 if systemctl status iptables-persistent |grep active >/dev/null 2>&1
 then 
  sudo systemctl stop iptables-persistent
@@ -14,7 +13,19 @@ then
 fi
 
 #ufw
-sudo apt install ufw -y
+apps=("ufw")
+
+for app in "${apps[@]}"
+do
+    # Verificar apps
+    if ! dpkg -s "$app" >/dev/null 2>&1; then
+        # app no instalada
+        sudo apt-get install -y "$app"
+    else
+        # app ya instalada
+        echo "$app ya instalada"
+    fi
+done
 
 sudo ufw allow 22/tcp
 sudo ufw default deny incoming
@@ -26,7 +37,19 @@ rm /var/log/auth.log
 sudo systemctl enable rsyslog
 sudo systemctl restart rsyslog
 
-sudo apt install fail2ban -y
+apps=("fail2ban")
+
+for app in "${apps[@]}"
+do
+    # Verificar apps
+    if ! dpkg -s "$app" >/dev/null 2>&1; then
+        # app no instalada
+        sudo apt-get install -y "$app"
+    else
+        # app ya instalada
+        echo "$app ya instalada"
+    fi
+done
 
 cat > /etc/fail2ban/jail.local <<- "EOF"
 [sshd]