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

---

icon: material/horse

Trojan

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

Protocol and implementation combination	Specification	Resists passive detection	Resists active probes
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
      }
    }
  ]
}
```