diff --git a/README.md b/README.md
index 565aca5..e8e4d76 100644
--- a/README.md
+++ b/README.md
@@ -35,4 +35,14 @@ inserendo
 quindi ricaricare tutti i dischi
 ```bash
 systemctl daemon-reload
-```
\ No newline at end of file
+```
+## Verificare porte utilizzate
+
+verificare la porta 80 in TCP
+```bash
+sudo lsof -i tcp:80 
+```
+verificare le porte aperte TCP
+```bash
+sudo lsof -nP -iTCP -sTCP:LISTEN
+```