# 常用账号与密码说明

BT面板安装、使用和维护中需要用到二种账户：

**1、BT后台管理默认账号和密码**：admin/admin123，管理地址:<http://服务器公网IP地址:8888/。> 若无法访问，请确保已经开启服务器安全组的8888端口（[安全组设置参考](http://www.websoft9.com/xdocs/ecs#5)）

**2、Linux服务器操作系统账号和密码**：

* 账号：*root*
* 密码：是安装镜像的时候客户自行设置的，若不记得此密码，请登录云服务器后台，修改服务器密码，重启后生效
* 登录：下载一个[putty工具](http://rj.baidu.com/soft/detail/15699.html?ald)，通过root账号登录，参考（[服务器通用文档-Linux远程管理与FTP](http://www.websoft9.com/xdocs/ecs#3)）


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# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://websoft9.gitbook.io/bt-linux-image-guide/bt-bao-ta-mian-ban-jing-xiang-shou-ce-linux-1/chang-yong-zhang-hao-yu-mi-ma-shuo-ming.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.