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This translation was modified on 28 March 2023 and an updated version (1 October 2024) is available on the source page. View the original page

TCP

TCP (Transmission Control Protocol) is currently one of the recommended transport protocols

It can be combined with various protocols in multiple ways.

TcpObject

TcpObject corresponds to the tcpSettings item in the Transport Protocol.

{
  "acceptProxyProtocol": false,
  "header": {
    "type": "none"
  }
}

acceptProxyProtocol: true | false

Only used for inbound, indicating whether to accept the PROXY protocol.

The PROXY protocolopen in new tag is used to transmit the real source IP and port of the request. If you are not familiar with it, please ignore this item.

Common reverse proxy software (such as HAProxy and Nginx) can be configured to send it, and VLESS fallbacks xver can also send it.

When filled in as true, after the underlying TCP connection is established, the requesting party must first send PROXY protocol v1 or v2, otherwise the connection will be closed.

The default value is false

header: NoneHeaderObject | HttpHeaderobject

Packet header obfuscation settings, the default value is NoneHeaderObject

Tip

HTTP obfuscation cannot be proxied by other HTTP servers (such as Nginx), but it can be proxied by VLESS fallbacks path.

NoneHeaderObject

No header obfuscation

{
  "type": "none"
}

type: "none"

Disable header obfuscation.

HttpHeaderObject

HTTP header obfuscation. The configuration must be the same between connecting inbound and outbound.

{
  "type": "http",
  "request": {},
  "response": {}
}

type: "http"

Enable HTTP header obfuscation.

request: HTTPRequestObject

HTTP request template.

response: HTTPResponseObject

HTTP response template.

HTTPRequestObject

{
  "version": "1.1",
  "method": "GET",
  "path": ["/"],
  "headers": {
    "Host": ["www.baidu.com", "www.bing.com"],
    "User-Agent": [
      "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/53.0.2785.143 Safari/537.36",
      "Mozilla/5.0 (iPhone; CPU iPhone OS 10_0_2 like Mac OS X) AppleWebKit/601.1 (KHTML, like Gecko) CriOS/53.0.2785.109 Mobile/14A456 Safari/601.1.46"
    ],
    "Accept-Encoding": ["gzip, deflate"],
    "Connection": ["keep-alive"],
    "Pragma": "no-cache"
  }
}

version: string

HTTP version, the default value is "1.1"

method: string

The HTTP method, the default value is "GET"

path: [ string ]

paths, an array of strings. The default value is ["/"]. When there are multiple values, a value is chosen randomly for each request.

headers: map{ string, [ string ]}

HTTP header, a key-value pair, each key represents the name of an HTTP header, and the corresponding value is an array.

Each request will include all the keys and randomly select a corresponding value. Please refer to the default values shown in the example above.

HTTPResponseObject

{
  "version": "1.1",
  "status": "200",
  "reason": "OK",
  "headers": {
    "Content-Type": ["application/octet-stream", "video/mpeg"],
    "Transfer-Encoding": ["chunked"],
    "Connection": ["keep-alive"],
    "Pragma": "no-cache"
  }
}

version: string

HTTP version, default is "1.1"

status: string

HTTP status, default is "200"

reason: string

HTTP status description, default value is "OK"

headers: map {string, [ string ]}

HTTP header, a key-value pair, each key represents the name of an HTTP header, and the corresponding value is an array.

Each request will include all the keys and randomly select a corresponding value. Please refer to the default values shown in the example above.