---
title: "Access secure Hadoop web UI"
slug: "secure-hadoop-use-2"
updated: 2026-09-17T09:18:17Z
published: 2026-09-17T09:18:17Z
canonical: "guide.ncloud-docs.com/secure-hadoop-use-2"
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.

# Access secure Hadoop web UI

Available in VPC

This guide introduces how to configure the web browser proxy for accessing Secure Hadoop Web UI from NAVER Cloud Platform environment.

## Preparations

- The Firefox web browser must be installed.
- For more information on how to install and use Firefox, see [Mozilla official website](https://www.mozilla.org/ko/firefox/new/).

### Configure the web browser proxy

This guide introduces how to configure the proxy using the profile feature of the Firefox web browser in 4 steps.

#### 1. Create the profile of Firefox web browser

- Run the following commands in the terminal to run the profile administrator.

```
/Applications/Firefox.app/Contents/MacOS/firefox –ProfileManager
```

![hadoop-secure-web-ui-1_ko](https://cdn.document360.io/6998976f-9d95-4df8-b847-d375892b92c2/Images/Documentation/hadoop-secure-web-ui-1_en.png?sv=2026-02-06&spr=https&st=2026-10-27T18%3A36%3A53Z&se=2026-10-27T19%3A36%3A53Z&sr=c&sp=r&sig=FN8V7tbcMCsLvWQRssgHETH5nx0QNwkTX3EwbdPgX4M%3D)

![hadoop-secure-web-ui-2_ko](https://cdn.document360.io/6998976f-9d95-4df8-b847-d375892b92c2/Images/Documentation/hadoop-secure-web-ui-2_en.png?sv=2026-02-06&spr=https&st=2026-10-27T18%3A36%3A53Z&se=2026-10-27T19%3A36%3A53Z&sr=c&sp=r&sig=FN8V7tbcMCsLvWQRssgHETH5nx0QNwkTX3EwbdPgX4M%3D)

- Click the **[Create profile]** button and enter `test-secure-cluster` in the new profile name.

#### 2. Select the profile and start Firefox

- Select the profile you created.
- Uncheck the **Use the selected profile when starting without asking** button and click **Start Firefox**.

#### 3. Change profile settings

- Change the network and proxy related settings of the created `test-secure-cluster` profile as follows:

Change network settings ![hadoop-secure-web-ui-3_ko](https://cdn.document360.io/6998976f-9d95-4df8-b847-d375892b92c2/Images/Documentation/hadoop-secure-web-ui-3_en.png?sv=2026-02-06&spr=https&st=2026-10-27T18%3A36%3A53Z&se=2026-10-27T19%3A36%3A53Z&sr=c&sp=r&sig=FN8V7tbcMCsLvWQRssgHETH5nx0QNwkTX3EwbdPgX4M%3D)

- Enter `about:config` in the address bar and edit the following network related items:
  - `network.negotiate-auth.trusted-uris` = `http://,https://`
  - `network.stricttransportsecurity.preloadlist` = `false`
  - `network.cookie.sameSite.noneRequiresSecure` = `false`

Change proxy settings ![hadoop-secure-web-ui-4_ko](https://cdn.document360.io/6998976f-9d95-4df8-b847-d375892b92c2/Images/Documentation/hadoop-secure-web-ui-4_en.png?sv=2026-02-06&spr=https&st=2026-10-27T18%3A36%3A53Z&se=2026-10-27T19%3A36%3A53Z&sr=c&sp=r&sig=FN8V7tbcMCsLvWQRssgHETH5nx0QNwkTX3EwbdPgX4M%3D)

- Enter `about:preferences` in the address bar or search for "proxy settings" in the Firefox settings menu.  

![hadoop-secure-web-ui-proxy-settings_ko](https://cdn.document360.io/6998976f-9d95-4df8-b847-d375892b92c2/Images/Documentation/hadoop-secure-web-ui-proxy-settings_en.png?sv=2026-02-06&spr=https&st=2026-10-27T18%3A36%3A53Z&se=2026-10-27T19%3A36%3A53Z&sr=c&sp=r&sig=FN8V7tbcMCsLvWQRssgHETH5nx0QNwkTX3EwbdPgX4M%3D)
  - HTTP Proxy: `10.0.4.9` (port: `18888`)
  - Check **Use this proxy for HTTPS**.
  - Select **SOCKS v5**.
  - When you use SOCKS v5, check **DNS proxy**.

#### 4. Check the HTTP proxy IP

![hadoop-secure-web-nslookup-1_ko](https://cdn.document360.io/6998976f-9d95-4df8-b847-d375892b92c2/Images/Documentation/hadoop-secure-web-nslookup-1_en.png?sv=2026-02-06&spr=https&st=2026-10-27T18%3A36%3A53Z&se=2026-10-27T19%3A36%3A53Z&sr=c&sp=r&sig=FN8V7tbcMCsLvWQRssgHETH5nx0QNwkTX3EwbdPgX4M%3D)

1. Copy the domain address on the cluster details page of Cloud Hadoop.

![hadoop-secure-web-nslookup-2_ko](https://cdn.document360.io/6998976f-9d95-4df8-b847-d375892b92c2/Images/Documentation/hadoop-secure-web-nslookup-2_en.png?sv=2026-02-06&spr=https&st=2026-10-27T18%3A36%3A53Z&se=2026-10-27T19%3A36%3A53Z&sr=c&sp=r&sig=FN8V7tbcMCsLvWQRssgHETH5nx0QNwkTX3EwbdPgX4M%3D)

1. Run `nslookup [도메인]` in the terminal.
2. Copy the IP in the Address item and enter it in the HTTP proxy.

#### 5. Open the Firefox web browser with the created profile

              Caution

              

After running Firefox with the created profile, you must rerun all running Firefox web browsers for normal operation.

- Enter the profile directly to open the Firefox web browser.

```
/Applications/Firefox.app/Contents/MacOS/firefox -P test-secure-cluster http://e-001-test-secure-cluster-fk6-hd.kr.ch.naverncp.com:8080
```

Run Firefox with the created profile using the above commands and access Ambari Web UI immediately.

- Open the Firefox web browser and select a profile. ![hadoop-secure-web-ui-5_ko](https://cdn.document360.io/6998976f-9d95-4df8-b847-d375892b92c2/Images/Documentation/hadoop-secure-web-ui-5_en.png?sv=2026-02-06&spr=https&st=2026-10-27T18%3A36%3A53Z&se=2026-10-27T19%3A36%3A53Z&sr=c&sp=r&sig=FN8V7tbcMCsLvWQRssgHETH5nx0QNwkTX3EwbdPgX4M%3D)
  - **HTTP Proxy**: `10.0.4.9` (port: `18888`)  

When you run Firefox, select the `test-secure-cluster` profile in the Select profile window.  

Enter the following URL in the address bar and access Ambari Web UI.

```
http://e-001-test-secure-cluster-fk6-hd.kr.ch.naverncp.com:8080
```

- Check Ambari Web UI access.  

![hadoop-secure-web-ui-6_ko](https://cdn.document360.io/6998976f-9d95-4df8-b847-d375892b92c2/Images/Documentation/hadoop-secure-web-ui-6_en.png?sv=2026-02-06&spr=https&st=2026-10-27T18%3A36%3A53Z&se=2026-10-27T19%3A36%3A53Z&sr=c&sp=r&sig=FN8V7tbcMCsLvWQRssgHETH5nx0QNwkTX3EwbdPgX4M%3D)