diff --git a/README.md b/README.md
index 2647d8d..deefcd6 100644
--- a/README.md
+++ b/README.md
@@ -403,3 +403,11 @@ network:
  sudo netplan apply
 ```
 
+### Probar conexión con un puerto ejemplo revisar el puerto 1433
+
+```bash 
+nc -zv 45.183.247.167 1433
+
+```
+salida:
+``` Connection to 45.183.247.167 1433 port [tcp/ms-sql-s] succeeded! ```