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

---

icon: material/send

Shadowsocks

Shadowsocks is the most well-known Chinese-made proxy protocol. It exists in multiple versions, but only AEAD 2022 ciphers over TCP with multiplexing is recommended.

Ciphers	Specification	Cryptographically sound	Resists passive detection	Resists active probes
Stream Ciphers	shadowsocks.org	:material-alert:	:material-alert:	:material-alert:
AEAD	shadowsocks.org	:material-check:	:material-alert:	:material-alert:
AEAD 2022	shadowsocks.org	:material-check:	:material-check:	:material-help:

(We strongly recommend using multiplexing to send UDP traffic over TCP, because doing otherwise is vulnerable to passive detection.)

:material-text-box-check: Password Generator

For 2022-blake3-aes-128-gcm cipher	For other ciphers	Action
		Refresh

:material-server: Server Example

=== ":material-account: Single-user"

```json
 {
  "inbounds": [
    {
      "type": "shadowsocks",
      "listen": "::",
      "listen_port": 8080,
      "network": "tcp",
      "method": "2022-blake3-aes-128-gcm",
      "password": "<password>",
      "multiplex": {
        "enabled": true
      }
    }
  ]
}
```

=== ":material-account-multiple: Multi-user"

```json
 {
  "inbounds": [
    {
      "type": "shadowsocks",
      "listen": "::",
      "listen_port": 8080,
      "network": "tcp",
      "method": "2022-blake3-aes-128-gcm",
      "password": "<server_password>",
      "users": [
        {
          "name": "sekai",
          "password": "<user_password>"
        }
      ],
      "multiplex": {
        "enabled": true
      }
    }
  ]
}
```

:material-cellphone-link: Client Example

=== ":material-account: Single-user"

```json
{
  "outbounds": [
    {
      "type": "shadowsocks",
      "server": "127.0.0.1",
      "server_port": 8080,
      "method": "2022-blake3-aes-128-gcm",
      "password": "<pasword>",
      "multiplex": {
        "enabled": true
      }
    }
  ]
}
```

=== ":material-account-multiple: Multi-user"

```json
{
  "outbounds": [
    {
      "type": "shadowsocks",
      "server": "127.0.0.1",
      "server_port": 8080,
      "method": "2022-blake3-aes-128-gcm",
      "password": "<server_pasword>:<user_password>",
      "multiplex": {
        "enabled": true
      }
    }
  ]
}
```