> For the complete documentation index, see [llms.txt](https://docs.9proxy.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.9proxy.com/getting-started/residential-proxy-by-ips/for-linux/sign-in-to-9proxy-account.md).
# Sign In to 9Proxy Account
Follow these steps to sign in and manage your 9Proxy account on Linux.
## 1. Start 9Proxy
Before logging in, ensure that **9Proxy** is running. If it's not already started, run:
```
systemctl start 9proxyd
```
**Optional**: If you want 9Proxy to start automatically on boot, run:
```
systemctl enable 9proxyd
```
## 2. Sign In to Your Account
### 2.1. Option 1: Standard Sign In via Interface
Run the following command to open the login interface, where you can enter your **Username** and **Password**:
```
9proxy auth -s
```
Once prompted, enter your credentials and select "**Login**" to sign in.
### 2.2. Option 2: Sign In Directly via Command Line
You can also sign in using your credentials directly in the terminal:
```
9proxy auth -u [username] -p [password]
```
* \[username] → with your 9Proxy account username
* \[password] → with your 9Proxy account password
## 3. Sign Out (If Needed)
To sign out and sign in with another account, use the following command:
```
9proxy auth -l
```
---
# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.
## 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, and the optional `goal` query parameter:
```
GET https://docs.9proxy.com/getting-started/residential-proxy-by-ips/for-linux/sign-in-to-9proxy-account.md?ask=&goal=
```
`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.
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.