Inspector 0.9.2: settings validation, sign-in hardening and other fixes

README.md

@@ -91,7 +91,8 @@ and that socket is effectively root on your server. So:
 
 - Keep the dashboard on your home network, or put it behind a VPN or a reverse
   proxy with authentication. Don't expose port 8080 to the internet.
-- Use a real dashboard password.
+- Use a real dashboard password. Repeated failed sign-ins from one address are
+  blocked for a few minutes.
 - Inspector itself runs as an unprivileged user; it starts as root only to detect
   the socket's permissions and fix ownership of its own folders.