1 files changed, 1 insertions, 2 deletions
diff --git a/install b/install
index 55c40e7..bb2eec0 100755
--- a/install
+++ b/install
@@ -690,8 +690,7 @@ swap                           -               /tmp            tmpfs   -       y
 def isValidNodename(hostname):
     if len(hostname) > 63:
         return False
-    allowed = re.compile("(?!-)[A-Z\d-]{1,63}(?<!-)$", re.IGNORECASE)
-    return all(allowed.match(x) for x in hostname)
+    return re.match(r'^(?!-)[a-z0-9\-]+(?<!-)$', hostname) != None
 
 def configure_nodename():
     nodename = 'frontier'