diff --git a/sio1/sisr1/20-dns/db. b/sio1/sisr1/20-dns/db.
deleted file mode 100644
index 59bb79c..0000000
--- a/sio1/sisr1/20-dns/db.
+++ /dev/null
@@ -1,2 +0,0 @@
-\n
-.