> For the complete documentation index, see [llms.txt](https://doc.duaer.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://doc.duaer.com/hosting/security/restricted-nodes.md).

# Find a restricted node in Duaer and replace it

In Duaer, a node blocked by policy still appears in search, and it cannot be added to the canvas. When you replace a step, the panel title is Replace this step.
## How it shows in the nodes panel

1. On the canvas, open the nodes panel and search.
2. Restricted nodes are listed after the nodes you can use, and the row is disabled. The title is “This node is restricted”, and it says whether the block is the whole instance or this project.
3. Click or Enter does not add it to the canvas. When you need it, contact an instance admin from the popover.

While you browse by category and are not searching, restricted nodes are hidden, and a category that would be empty is dropped. That is separate from excluding a node with an environment variable: a node that is not loaded does not appear in search at all.

## Replace it with a node you can use <a href="#replace" id="replace"></a>

1. On an existing step, choose replace.
2. The panel title becomes Replace this step.
3. Search still lists the restricted node. Select a row that is not disabled to finish the replacement.

A restricted node cannot be chosen from the replace search either. An admin configures the node-type policy on the instance or on a project. Settings in the editor does not offer a checkbox per node. With no policy, nodes stay available. Read the interface on this instance under [endpoint reference](/api/api-reference.md).
## Questions

### What is a node you can search for in Duaer but cannot drop on the canvas?

A restricted node. A policy blocked it. Category browse hides it. Search lists it after usable nodes, and adding it does nothing.

### How do you replace a restricted node in Duaer?

Choose replace on the step. The panel title is Replace this step. Pick a row that is not disabled.