# How to 'whitelist' IP address's that can access Node RED

**URL:** <https://discourse.nodered.org/t/how-to-whitelist-ip-addresss-that-can-access-node-red/83990>\
**Category:** FAQs\
**Tags:** security\
**Created:** [23 December 2023 16:58 UTC](https://discourse.nodered.org/t/how-to-whitelist-ip-addresss-that-can-access-node-red/83990 "2023-12-23T16:58:59Z")\
**Posts on this page:** 1\
**Showing post:** 4

<div class="post-metadata">

**Author:** ![BartButenaers](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/bartbutenaers/32/10476_2.png) [@BartButenaers](https://discourse.nodered.org/u/BartButenaers)\
**Post date:** [24 December 2023 11:05 UTC](https://discourse.nodered.org/t/how-to-whitelist-ip-addresss-that-can-access-node-red/83990/4 "2023-12-24T11:05:12Z")

</div>

> [@Limit access to Node-RED via client certificates](https://discourse.nodered.org/t/limit-access-to-node-red-via-client-certificates/83996/4):
>
> It's been updated and now uses a built in class to help add the IP Address', Ranges & Subnets.
> 
> example:
> 
> ```auto
> const allowedIPs = [
> "127.0.0.1", /* Localhost */
> "172.16.0.0/24", /* Private Network */
> "103.22.200.1-103.22.203.254" /* CloudFlare range example */
> ];
> 
> ```
> 
> Taking out the hosted services from the equation

Just repeating your feedback here (from the client certificate discussion) for anybody interested in ip whitelisting.

---

_[View the full topic](https://discourse.nodered.org/t/how-to-whitelist-ip-addresss-that-can-access-node-red/83990)._