diff --git a/data/private b/data/private
new file mode 100644
index 00000000..6b8120f0
--- /dev/null
+++ b/data/private
@@ -0,0 +1,10 @@
+# https://tools.ietf.org/html/rfc6762
+local
+
+# https://tools.ietf.org/html/rfc2606
+localhost
+
+# Also defined in rfc2606
+# test
+# example
+# invalid