> ## Documentation Index
> Fetch the complete documentation index at: https://help.b2proxy.com/llms.txt
> Use this file to discover all available pages before exploring further.
# How to Use Unlimited Residential Proxies via Username:Password?
B2Proxy supports the quick extraction and use of unlimited residential proxies via the **username/password (credential) method**. The setup is simple and requires no additional configuration. This article will guide you on how to obtain unlimited residential proxies using the credential-based extraction method, helping you get started quickly.
## I. Basic Setup Steps
### 1. Set Session Type
Rotating IP: Auto-rotates IP per request (ideal for scraping/data collection).
Sticky IP: The IP remains fixed for a period of time (5 minutes by default), suits account management).
### 2. Bind Sub-User (Required)
Select an existing sub-user or create one to assign proxy permissions.
### 3. Select Hostname
Based on your network IP, select the nearest server. You can also manually choose other nodes.
## II. Proxy Generation & Testing
### 4. Test Connectivity (Optional)
Run in Command Prompt:
curl -x host:port -U "username:password" ipinfo.io
(Replace with your testing command)
### 5. Select Output Format
Proxy information usually includes: Host, Port, Username, and Password.
### 6. Set the Number of Proxies
Enter the number of IPs needed (e.g., 100) → Click 「Generate」.
### 7. Get Proxy List
After generation, copy individual proxies from 「Proxy List」, or export as TXT/CSV for bulk use.
Security Recommendations: Never share proxy credentials; reset passwords periodically. Assign sub-user permissions judiciously.