sing-box/docs/manual/proxy-protocol/trojan.md

---

icon: material/horse

Trojan

As the most commonly used TLS proxy made in China, Trojan can be used in various combinations, but only the combination of uTLS and multiplexing is recommended.

Protocol and implementation combination	Specification	Binary Characteristics	Active Detect Hiddenness
Origin / trojan-gfw	trojan-gfw.github.io	:material-check:	:material-check:
Basic Go implementation	/	:material-alert:	:material-check:
with privates transport by V2Ray	No formal definition	:material-alert:	:material-alert:
with uTLS enabled	No formal definition	:material-help:	:material-check:

:material-text-box-check: Password Generator

Generate Password	Action
	Refresh

:material-server: Server Example

=== ":material-harddisk: With local certificate"

```json
{
  "inbounds": [
    {
      "type": "trojan",
      "listen": "::",
      "listen_port": 8080,
      "users": [
        {
          "name": "example",
          "password": "password"
        }
      ],
      "tls": {
        "enabled": true,
        "server_name": "example.org",
        "key_path": "/path/to/key.pem",
        "certificate_path": "/path/to/certificate.pem"
      },
      "multiplex": {
        "enabled": true
      }
    }
  ]
}
```


=== ":material-auto-fix: With ACME"

```json
{
  "inbounds": [
    {
      "type": "trojan",
      "listen": "::",
      "listen_port": 8080,
      "users": [
        {
          "name": "example",
          "password": "password"
        }
      ],
      "tls": {
        "enabled": true,
        "server_name": "example.org",
        "acme": {
          "domain": "example.org",
          "email": "[email protected]"
        }
      },
      "multiplex": {
        "enabled": true
      }
    }
  ]
}
```


=== ":material-cloud: With ACME and Cloudflare API"

```json
{
  "inbounds": [
    {
      "type": "trojan",
      "listen": "::",
      "listen_port": 8080,
      "users": [
        {
          "name": "example",
          "password": "password"
        }
      ],
      "tls": {
        "enabled": true,
        "server_name": "example.org",
        "acme": {
          "domain": "example.org",
          "email": "[email protected]",
          "dns01_challenge": {
            "provider": "cloudflare",
            "api_token": "my_token"
          }
        }
      },
      "multiplex": {
        "enabled": true
      }
    }
  ]
}
```


:material-cellphone-link: Client Example

=== ":material-web-check: With valid certificate"

```json
{
  "outbounds": [
    {
      "type": "trojan",
      "server": "127.0.0.1",
      "server_port": 8080,
      "password": "password",
      "tls": {
        "enabled": true,
        "server_name": "example.org",
        "utls": {
          "enabled": true,
          "fingerprint": "firefox"
        }
      },
      "multiplex": {
        "enabled": true
      }
    }
  ]
}
```


=== ":material-check: With self-sign certificate"

!!! info "Tip"

    Use `sing-box merge` command to merge configuration and certificate into one file.

```json
{
  "outbounds": [
    {
      "type": "trojan",
      "server": "127.0.0.1",
      "server_port": 8080,
      "password": "password",
      "tls": {
        "enabled": true,
        "server_name": "example.org",
        "certificate_path": "/path/to/certificate.pem",
        "utls": {
          "enabled": true,
          "fingerprint": "firefox"
        }
      },
      "multiplex": {
        "enabled": true
      }
    }
  ]
}
```


=== ":material-alert: Ignore certificate verification"

```json
{
  "outbounds": [
    {
      "type": "trojan",
      "server": "127.0.0.1",
      "server_port": 8080,
      "password": "password",
      "tls": {
        "enabled": true,
        "server_name": "example.org",
        "insecure": true,
        "utls": {
          "enabled": true,
          "fingerprint": "firefox"
        }
      },
      "multiplex": {
        "enabled": true
      }
    }
  ]
}
```