# Organize instances with tags


> Follow the steps in this guide to create tags for organizing your instances.


## Overview

Tags allow you to label and group NGINX instances in F5 NGINX Instance Manager.

## Adding a Tag {#add-tag}

There are two ways you can add tags:

- Add tags to the `agent-dynamic.conf` file.
- Add tags using the NGINX Instance Manager web interface.

### Add Tags with a Configuration File {#add-tag-config}

You can edit the `agent-dynamic.conf` file to add a tag to an instance.

These tags show up during registration and can't be removed from the web interface -- if you try to remove these tags in the web interface, the NGINX Agent adds them back when restarting.

To add tags to the configuration file, take the following steps:

1. Edit the `/var/lib/nginx-agent/agent-dynamic.conf` file and add the tags in a list under the key `tags:` <!-- get new nginx-agent.conf example -->

    **Note:** If you're running NGINX Instance Manager 2.10.1 or earlier or NGINX Agent 2.25.1 or earlier, the `agent-dynamic.conf` file is located in `/etc/nginx-agent/`.

2. Restart the NGINX Agent service:

    ```shell
    sudo systemctl restart nginx-agent
    ```

### Add Tags using the Web Interface {#add-tags-UI}

To add tags using the NGINX Instance Manager web interface, take the following steps:

1. In a web browser, go to the FQDN for your NGINX Instance Manager host and log in.

1. In the left menu, select **Instances**.

1. Select an instance row in the list of instances. An informational panel for the instance is displayed.

1. Select **Edit**.

1. In the **System Tags** box, select one or more tags to associate with the instance. To add a new tag, type the name for the tag, then select **Add New Tag**.

   - You can remove a tag from an instance by clicking the `x` next to the tag's name.

1. Select **Save**.