watch http does not work on server side (nginx)

[macbobo]

Describe the bug

1. 测试服务器为nginx，在nginx服务器启动kyanos（最新版本）
2. 客户端使用curl 发送http请求，watch不显示
3. 在nginx服务器使用curl 发起本地请求，watch显示正常
4. 客户端使用wrk 发送http请求，watch显示正常

To Reproduce
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Expected behavior
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Information (please complete the following information):

• OS: [e.g. use uname -ar]

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Title: watch http does not display

[dosubot]

I wasn't able to find specific information on why kyanos might not display HTTP requests from curl when sent from a remote client, but here are a few things you might consider checking:

1. Network Configuration: Ensure that the network configuration allows traffic from the remote client to reach the server where kyanos is running. Firewalls or network policies might be blocking the traffic.

2. Interface Binding: Verify that kyanos is monitoring the correct network interface. If it's bound to a specific interface, it might not capture traffic from other interfaces.

3. Protocol and Port Filtering: Double-check any filters you have set in kyanos to ensure they are not excluding the traffic from curl.

4. Logging and Debugging: Use kyanos's logging and debugging features to gather more information about the traffic being captured. This might help identify why certain requests are not being displayed ^[1].

5. Version Compatibility: Although no specific compatibility issues with curl are noted, ensure that both kyanos and curl are up to date.

If these steps don't resolve the issue, further investigation into the specific network setup and kyanos configuration might be necessary.

To continue talking to Dosu, mention @dosu.

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[macbobo]

[hengyoush]

This is because nginx sends the response using the sendfile system call, there is currently no staking, this needs to be added later

[hengyoush]

Fixed at 1.4.3, please verify.