---
title: "UI access and password settings by service"
slug: "hadoop-chadoop-3-3"
tags: ["Cloud Hadoop"]
updated: 2026-09-17T09:18:06Z
published: 2026-09-17T09:18:06Z
canonical: "guide.ncloud-docs.com/hadoop-chadoop-3-3"
stale: true
---

> ## Documentation Index
> Fetch the complete documentation index at: https://guide.ncloud-docs.com/llms.txt
> Use this file to discover all available pages before exploring further.

# UI access and password settings by service

Available in Classic

You can submit management tasks or applications through NAVER Cloud Platform's Cloud Hadoop console or web UI (Ambari, Hue, etc.). However, SSH connection to the cluster node is required for executing the client directly.

              Note

              

Some web UIs such as HDFS name node UI can only be accessed via SSH tunneling. For more details, see [Web UI connection using tunneling](/docs/en/hadoop-chadoop-3-6).

## Preparations

In order to access a cluster node, the following preparations need to be made in advance:

| Item | Description | Guide |
| --- | --- | --- |
| Set ACG | Add the allowed port of the access page and the fixed IP of the device needed to access the cluster ACG setting - Access source: fixed IP of the user (Click the **[myIp]** button to enter) - Allowed port: 8080 for Ambari, 50070 for HDFS NameNode | [Firewall settings (ACG)](/docs/en/server-acg-classic) |
| Authentication key | Private key (.pem) required for access to the cluster | [Managing authentication key for direct cluster connection](/docs/en/hadoop-chadoop-3-1#%ED%81%B4%EB%9F%AC%EC%8A%A4%ED%84%B0-%EC%A7%81%EC%A0%91-%EC%A0%91%EC%86%8D-%EC%9D%B8%EC%A6%9D%ED%82%A4-%EB%B3%80%EA%B2%BD) |
| Public IP | Public IP required for access to the cluster node The detailed information of the cluster can be viewed from **Public IP** | [Check cluster details](/docs/en/hadoop-chadoop-3-1#%ED%81%B4%EB%9F%AC%EC%8A%A4%ED%84%B0-%EC%83%81%EC%84%B8-%EC%A0%95%EB%B3%B4-%ED%99%95%EC%9D%B8) |

### Set ACG rules

The following describes how to change the ACG rules of a cluster.

1. Click **Menu** > **All Services** > **Compute** > **Server** > **ACG** on the Classic environment of the NAVER Cloud Platform console.
2. Select the ACG of the cluster you want to access, and click the **[ACG settings]** button.  

![chadoop-3-3-01_en.png](https://cdn.document360.io/6998976f-9d95-4df8-b847-d375892b92c2/Images/Documentation/chadoop-3-3-01_en.png?sv=2026-02-06&spr=https&st=2026-10-27T18%3A24%3A56Z&se=2026-10-27T19%3A24%3A56Z&sr=c&sp=r&sig=H3ZV8n5lE0dYio4%2FILxJPC3dq%2Fkofo4ARjhhbnJJfOM%3D)
3. Enter the 4 information items below and add an ACG rule.
  - Protocol: TCP
  - Access source: IP of the local equipment used for SSH communication
  - Allowed port: 22
  - Note (optional)  

![chadoop-3-3-02_en.png](https://cdn.document360.io/6998976f-9d95-4df8-b847-d375892b92c2/Images/Documentation/chadoop-3-3-02_en.png?sv=2026-02-06&spr=https&st=2026-10-27T18%3A24%3A56Z&se=2026-10-27T19%3A24%3A56Z&sr=c&sp=r&sig=H3ZV8n5lE0dYio4%2FILxJPC3dq%2Fkofo4ARjhhbnJJfOM%3D)

              Note

              

- Application web UI list by cluster version and type

The following is the list of application web UIs provided for each version and type of Cloud Hadoop clusters.

- Cloud Hadoop cluster version 1.0

| Cluster version | Cluster type | Application Web | Application Web Reference Site |
| --- | --- | --- | --- |
| 1.0 | Core Hadoop | Ambari Web Console | [https://ambari.apache.org/](https://ambari.apache.org/) |
| Core Hadoop | Hue Admin | [https://gethue.com/](https://gethue.com/) |
| HBase | Ambari Web Console | [https://ambari.apache.org/](https://ambari.apache.org/) |
| Spark | Ambari Web Console | [https://ambari.apache.org/](https://ambari.apache.org/) |
| Spark | Hue Admin | [https://gethue.com/](https://gethue.com/) |
| Spark | Zeppelin Notebook | [https://zeppelin.apache.org/](https://zeppelin.apache.org/) |

- Cloud Hadoop cluster version 1.1, 1.2

| Cluster version | Cluster type | Application Web | Application Web Reference Site |
| --- | --- | --- | --- |
| 1.1 1.2 | Core Hadoop | Ambari Web Console | [https://ambari.apache.org/](https://ambari.apache.org/) |
| Core Hadoop | Hue Admin | [https://gethue.com/](https://gethue.com/) |
| HBase | Ambari Web Console | [https://ambari.apache.org/](https://ambari.apache.org/) |
| Presto | Ambari Web Console | [https://ambari.apache.org/](https://ambari.apache.org/) |
| Presto | Hue Admin | [https://gethue.com/](https://gethue.com/) |
| Presto | Presto Coordinator | [https://prestodb.io/](https://prestodb.io/) |
| Presto | Zeppelin Notebook | [https://zeppelin.apache.org/](https://zeppelin.apache.org/) |
| Spark | Ambari Web Console | [https://ambari.apache.org/](https://ambari.apache.org/) |
| Spark | Hue Admin | [https://gethue.com/](https://gethue.com/) |
| Spark | Zeppelin Notebook | [https://zeppelin.apache.org/](https://zeppelin.apache.org/) |

## Web UI access

You can access the web UI using DNS.

              Note

              

From Cloud Hadoop 2.1 and higher, you must complete the NCloud account login authentication to access web UI due to SSO integration.

The following describes how to access the available web UIs:

1. Click **Menu** > **All Services** > **Big Data & Analytics** > **Cloud Hadoop** on the Classic environment of the NAVER Cloud Platform console.
2. Select the cluster to access the web UI from the cluster list, and then click the **[View by application]** button.
3. Click the web UI link in the remarks field from the pop-up window's web UI list.
4. Go to the NCloud login authentication page and access through the personal information consent after NCloud account login. ![chadoop-sso-1-1](https://cdn.document360.io/6998976f-9d95-4df8-b847-d375892b92c2/Images/Documentation/chadoop-sso-1-1.png?sv=2026-02-06&spr=https&st=2026-10-27T18%3A24%3A56Z&se=2026-10-27T19%3A24%3A56Z&sr=c&sp=r&sig=H3ZV8n5lE0dYio4%2FILxJPC3dq%2Fkofo4ARjhhbnJJfOM%3D)

![chadoop-sso-1-2](https://cdn.document360.io/6998976f-9d95-4df8-b847-d375892b92c2/Images/Documentation/chadoop-sso-1-2.png?sv=2026-02-06&spr=https&st=2026-10-27T18%3A24%3A56Z&se=2026-10-27T19%3A24%3A56Z&sr=c&sp=r&sig=H3ZV8n5lE0dYio4%2FILxJPC3dq%2Fkofo4ARjhhbnJJfOM%3D)

## Change password

### Ambari

To set and change the Ambari UI access password click **[Manage cluster] > Initialize cluster admin password** menu from Cloud Hadoop console. For more details, see [Initialize cluster admin password](/docs/en/hadoop-chadoop-3-1#%ED%81%B4%EB%9F%AC%EC%8A%A4%ED%84%B0-%EA%B4%80%EB%A6%AC%EC%9E%90-%ED%8C%A8%EC%8A%A4%EC%9B%8C%EB%93%9C-%EC%B4%88%EA%B8%B0%ED%99%94). ![chadoop-3-3-04_en](https://cdn.document360.io/6998976f-9d95-4df8-b847-d375892b92c2/Images/Documentation/chadoop-3-3-04_en.png?sv=2026-02-06&spr=https&st=2026-10-27T18%3A24%3A56Z&se=2026-10-27T19%3A24%3A56Z&sr=c&sp=r&sig=H3ZV8n5lE0dYio4%2FILxJPC3dq%2Fkofo4ARjhhbnJJfOM%3D)

### Hue

The following describes how to change the password for accessing the HUE UI:

1. Run PuTTY and access the edge node via SSH. (see [SSH cluster node access](/docs/en/hadoop-chadoop-3-2) guide)
2. Run the command below to change the password.

```
$ echo "from django.contrib.auth.models import User; 
u = User.objects.get(username='existing user name');
u.set_password('new password');
u.save()
" |  /usr/lib/hue/build/env/bin/hue  shell
```

Or, use the `hue changepassword` command as below to change the password.

```
$ pwd
/usr/lib/hue/build/env/bin

$ sudo ./hue changepassword 'existing user name'
Changing password for user 'existing user name'
Password:
Password (again):
Password changed successfully for user 'existing user name'
```

### Zeppelin Notebook

In Cloud Hadoop, Zeppelin Notebooks are managed by Ambari. Therefore, it is recommended to access the [Ambari UI](/docs/en/hadoop-chadoop-3-3#web-ui-%EC%A0%91%EC%86%8D) and perform tasks rather than directly accessing the cluster to change files and run scripts.

Here's how to change your Zeppelin Notebook password.

1. After accessing the Ambari UI, log in with the cluster admin account ID and password.
2. Click **Zeppelin Notebook** on the left tab.
3. Click **[Configs]** tap at the top.
4. Click **Advanced-zeppelin-shiro-ini** item, and edit the password.  

![chadoop-3-3-zeppelin_C_en](https://cdn.document360.io/6998976f-9d95-4df8-b847-d375892b92c2/Images/Documentation/chadoop-3-3-zeppelin_C_en.png?sv=2026-02-06&spr=https&st=2026-10-27T18%3A24%3A56Z&se=2026-10-27T19%3A24%3A56Z&sr=c&sp=r&sig=H3ZV8n5lE0dYio4%2FILxJPC3dq%2Fkofo4ARjhhbnJJfOM%3D)
5. Click the **[Save]** button at the top.
6. Click **[Restart]** > **Restart All Affected** button at the upper right, and click **[CONFIRM RESTART ALL]**.

If you follow the above sequence and access Zeppelin Notebook, you will see that the password change has been applied.