diff --git a/reserver/util.py b/reserver/util.py
new file mode 100644
index 0000000..d7b8199
--- /dev/null
+++ b/reserver/util.py
@@ -0,0 +1,22 @@
+# -*- coding: utf-8 -*-
+"""Utility functions."""
+
+from platform import system
+from hashlib import sha256
+from time import time
+
+def is_platform_linux():
+    """
+    Check whether current platform is linux or not.
+
+    :return: bool
+    """
+    return system() == "Linux"
+
+def get_random_name():
+    """
+    Generate a random str based on current timestamp.
+
+    :return: str
+    """
+    return sha256(str(time()).encode("utf-8")).hexdigest()
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