---
title: username
framework: networkextension
role: symbol
role_heading: Instance Property
path: networkextension/neproxyserver/username
---

# username

The username portion of the authentication credential to be used to authenticate with the proxy server.

## Declaration

```swift
var username: String? { get set }
```

## See Also

### Accessing Proxy Server Properties

- [address](networkextension/neproxyserver/address.md)
- [port](networkextension/neproxyserver/port.md)
- [authenticationRequired](networkextension/neproxyserver/authenticationrequired.md)
- [password](networkextension/neproxyserver/password.md)