# 发起请求

默认情况下，Oxylabs 代理和 Proxy Rotator 使用一种基本的 [**HTTP 身份验证**](https://en.wikipedia.org/wiki/Basic_access_authentication) ，它要求你提供用户名和密码。你可以通过联系你的专属客户经理或我们的支持团队获取凭据，邮箱： [**support@oxylabs.io**](mailto:support@oxylabs.io).

我们还支持基于已列入白名单的 IP 地址进行身份验证，参见 [**IP 白名单**](/products/cn/dai-li/dedicated-datacenter-proxies/enterprise/whitelisting-ips.md) 页面。根据你的身份验证方式，你可能需要更改代理端口。

| 代理端口    | 用法                                                                                                                                                            |
| ------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `60000` | 当使用登录凭据（用户名和密码）时，代理需要此端口。它也用于 [**Proxy Rotator** ](/products/cn/dai-li/dedicated-datacenter-proxies/enterprise/proxy-rotator-optional.md)同时使用登录凭据和已加入白名单的 IP。 |
| `65432` | 当授权通过已加入白名单的 IP 完成时，代理需要此项。                                                                                                                                   |

#### 代码示例

如果您想通过用户名和密码认证方式使用独享数据中心代理：

{% tabs %}
{% tab title="cURL" %}

```shell
curl -x 1.2.3.4:60000 -U user1:pass1 http://ip.oxylabs.io/location
```

{% endtab %}

{% tab title="PHP" %}

```php
<?php
    $username = 'user1';
    $password = 'pass1';
    $proxy = '1.2.3.4:60000';
    $query = curl_init('https://ip.oxylabs.io/location');
    curl_setopt($query, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($query, CURLOPT_PROXY, "http://$proxy");
    curl_setopt($query, CURLOPT_PROXYUSERPWD, "$username:$password");
    $output = curl_exec($query);
    curl_close($query);
    if ($output)
        echo $output;
?>
```

{% endtab %}

{% tab title="Python" %}

```python
导入 requests

response = requests.get(
    'https://ip.oxylabs.io/location',
    代理={'http': 'http://username:password@1.2.3.4:60000',
            'https': 'http://username:password@1.2.3.4:60000'}
)
print(response.text)
```

{% endtab %}

{% tab title="C#" %}

```csharp
using System;
using System.Net;

类 Example
{
    静态 void Main()
    {
        var proxy = new WebProxy
        {
            Address = new Uri($"http://1.2.3.4:60000"),
            BypassProxyOnLocal = false,
            UseDefaultCredentials = false,
            Credentials = new NetworkCredential("username", "password")
        };

        var handler = new HttpClientHandler
        {
            Proxy = proxy,
        };

        HttpClient client = new HttpClient(handler);
        var task = Task.Run(async () =>
        {
            var response = await client.GetAsync("https://ip.oxylabs.io/location");
            var content = response.Content;
            var result = await content.ReadAsStringAsync();
            return result;
        });

        task.Wait();
        Console.WriteLine(task.Result);
    }
}
```

{% endtab %}
{% endtabs %}

如果您想通过白名单 IP 身份验证方法使用 独享数据中心代理：

{% tabs %}
{% tab title="cURL" %}

```shell
curl -x 1.2.3.4:65432 https://ip.oxylabs.io/location 
```

{% endtab %}

{% tab title="PHP" %}

```php
<?php
    $proxy = '1.2.3.4:65432';
    $query = curl_init('https://ip.oxylabs.io/location');
    curl_setopt($query, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($query, CURLOPT_PROXY, "http://$proxy");
    $output = curl_exec($query);
    curl_close($query);
    if ($output)
        echo $output;
?>
```

{% endtab %}

{% tab title="Python" %}

```python
导入 requests

response = requests.get(
    'https://ip.oxylabs.io/location',
    代理={'http': 'http://1.2.3.4:65432',
            'https': 'http://1.2.3.4:65432'}
)
print(response.text)
```

{% endtab %}

{% tab title="C#" %}

```csharp
using System;
using System.Net;

类 Example
{
    静态 void Main()
    {
        var proxy = new WebProxy
        {
            Address = new Uri($"http://1.2.3.4:65432"),
            BypassProxyOnLocal = false,
            UseDefaultCredentials = false,
        };

        var handler = new HttpClientHandler
        {
            Proxy = proxy,
        };

        HttpClient client = new HttpClient(handler);
        var task = Task.Run(async () =>
        {
            var response = await client.GetAsync("https://ip.oxylabs.io/location");
            var content = response.Content;
            var result = await content.ReadAsStringAsync();
            return result;
        });

        task.Wait();
        Console.WriteLine(task.Result);
    }
}
```

{% endtab %}
{% endtabs %}


---

# 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://developers.oxylabs.io/products/cn/dai-li/dedicated-datacenter-proxies/enterprise/making-requests.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.