Clash

A rule-based tunnel in Go.

Features

Local HTTP/HTTPS/SOCKS server with/without authentication
VMess, Shadowsocks, Trojan (experimental), Snell protocol support for remote connections. UDP is supported.
Built-in DNS server that aims to minimize DNS pollution attacks, supports DoH/DoT upstream. Fake IP is also supported.
Rules based off domains, GEOIP, IP CIDR or ports to forward packets to different nodes
Remote groups allow users to implement powerful rules. Supports automatic fallback, load balancing or auto select node based off latency
Remote providers, allowing users to get node lists remotely instead of hardcoding in config
Netfilter TCP redirecting. You can deploy Clash on your Internet gateway with iptables.
Comprehensive HTTP API controller

Install

Clash requires Go >= 1.13. You can build it from source:

$ go get -u -v github.com/Dreamacro/clash

Pre-built binaries are available here: release
Pre-built TUN mode binaries are available here: TUN release. Source is not currently available.

Check Clash version with:

$ clash -v

Daemonize Clash

Unfortunately, there is no native or elegant way to implement daemons on Golang. We recommend using third-party daemon management tools like PM2, Supervisor or the like to keep Clash running as a service.

In the case of pm2, start the daemon this way:

$ pm2 start clash

If you have Docker installed, it's recommended to deploy Clash directly using docker-compose: run Clash in Docker

Config

The default configuration directory is $HOME/.config/clash.

The name of the configuration file is config.yaml.

If you want to use another directory, use -d to control the configuration directory.

For example, you can use the current directory as the configuration directory:

$ clash -d .

This is an example configuration file (click to expand)

# port of HTTP
port: 7890

# port of SOCKS5
socks-port: 7891

# redir port for Linux and macOS
# redir-port: 7892

allow-lan: false

# Only applicable when setting allow-lan to true
# "*": bind all IP addresses
# 192.168.122.11: bind a single IPv4 address
# "[aaaa::a8aa:ff:fe09:57d8]": bind a single IPv6 address
# bind-address: "*"

# Rule / Global / Direct (default is Rule)
mode: Rule

# set log level to stdout (default is info)
# info / warning / error / debug / silent
log-level: info

# RESTful API for clash
external-controller: 127.0.0.1:9090

# you can put the static web resource (such as clash-dashboard) to a directory, and clash would serve in `${API}/ui`
# input is a relative path to the configuration directory or an absolute path
# external-ui: folder

# Secret for RESTful API (Optional)
# secret: ""

# experimental feature
experimental:
  ignore-resolve-fail: true # ignore dns resolve fail, default value is true
  # interface-name: en0 # outbound interface name

# authentication of local SOCKS5/HTTP(S) server
# authentication:
#  - "user1:pass1"
#  - "user2:pass2"

# # experimental hosts, support wildcard (e.g. *.clash.dev Even *.foo.*.example.com)
# # static domain has a higher priority than wildcard domain (foo.example.com > *.example.com)
# hosts:
#   '*.clash.dev': 127.0.0.1
#   'alpha.clash.dev': '::1'

# dns:
  # enable: true # set true to enable dns (default is false)
  # ipv6: false # default is false
  # listen: 0.0.0.0:53
  # # default-nameserver: # resolve dns nameserver host, should fill pure IP
  # #   - 114.114.114.114
  # #   - 8.8.8.8
  # enhanced-mode: redir-host # or fake-ip
  # # fake-ip-range: 198.18.0.1/16 # if you don't know what it is, don't change it
  # fake-ip-filter: # fake ip white domain list
  #   - '*.lan'
  #   - localhost.ptlogin2.qq.com
  # nameserver:
  #   - 114.114.114.114
  #   - tls://dns.rubyfish.cn:853 # dns over tls
  #   - https://1.1.1.1/dns-query # dns over https
  # fallback: # concurrent request with nameserver, fallback used when GEOIP country isn't CN
  #   - tcp://1.1.1.1
  # fallback-filter:
  #   geoip: true # default
  #   ipcidr: # ips in these subnets will be considered polluted
  #     - 240.0.0.0/4

proxies:
  # shadowsocks
  # The supported ciphers(encrypt methods):
  #   aes-128-gcm aes-192-gcm aes-256-gcm
  #   aes-128-cfb aes-192-cfb aes-256-cfb
  #   aes-128-ctr aes-192-ctr aes-256-ctr
  #   rc4-md5 chacha20-ietf xchacha20
  #   chacha20-ietf-poly1305 xchacha20-ietf-poly1305
  - name: "ss1"
    type: ss
    server: server
    port: 443
    cipher: chacha20-ietf-poly1305
    password: "password"
    # udp: true

  # old obfs configuration format remove after prerelease
  - name: "ss2"
    type: ss
    server: server
    port: 443
    cipher: chacha20-ietf-poly1305
    password: "password"
    plugin: obfs
    plugin-opts:
      mode: tls # or http
      # host: bing.com

  - name: "ss3"
    type: ss
    server: server
    port: 443
    cipher: chacha20-ietf-poly1305
    password: "password"
    plugin: v2ray-plugin
    plugin-opts:
      mode: websocket # no QUIC now
      # tls: true # wss
      # skip-cert-verify: true
      # host: bing.com
      # path: "/"
      # mux: true
      # headers:
      #   custom: value

  # vmess
  # cipher support auto/aes-128-gcm/chacha20-poly1305/none
  - name: "vmess"
    type: vmess
    server: server
    port: 443
    uuid: uuid
    alterId: 32
    cipher: auto
    # udp: true
    # tls: true
    # skip-cert-verify: true
    # network: ws
    # ws-path: /path
    # ws-headers:
    #   Host: v2ray.com

  # socks5
  - name: "socks"
    type: socks5
    server: server
    port: 443
    # username: username
    # password: password
    # tls: true
    # skip-cert-verify: true
    # udp: true

  # http
  - name: "http"
    type: http
    server: server
    port: 443
    # username: username
    # password: password
    # tls: true # https
    # skip-cert-verify: true

  # snell
  - name: "snell"
    type: snell
    server: server
    port: 44046
    psk: yourpsk
    # obfs-opts:
      # mode: http # or tls
      # host: bing.com

  # trojan
  - name: "trojan"
    type: trojan
    server: server
    port: 443
    password: yourpsk
    # udp: true
    # sni: example.com # aka server name
    # alpn:
    #   - h2
    #   - http/1.1
    # skip-cert-verify: true

proxy-groups:
  # relay chains the proxies. proxies shall not contain a proxy-group. No UDP support.
  # Traffic: clash <-> http <-> vmess <-> ss1 <-> ss2 <-> Internet
  - name: "relay"
    type: relay
    proxies:
      - http
      - vmess
      - ss1
      - ss2

  # url-test select which proxy will be used by benchmarking speed to a URL.
  - name: "auto"
    type: url-test
    proxies:
      - ss1
      - ss2
      - vmess1
    url: 'http://www.gstatic.com/generate_204'
    interval: 300

  # fallback select an available policy by priority. The availability is tested by accessing an URL, just like an auto url-test group.
  - name: "fallback-auto"
    type: fallback
    proxies:
      - ss1
      - ss2
      - vmess1
    url: 'http://www.gstatic.com/generate_204'
    interval: 300

  # load-balance: The request of the same eTLD will be dial on the same proxy.
  - name: "load-balance"
    type: load-balance
    proxies:
      - ss1
      - ss2
      - vmess1
    url: 'http://www.gstatic.com/generate_204'
    interval: 300

  # select is used for selecting proxy or proxy group
  # you can use RESTful API to switch proxy, is recommended for use in GUI.
  - name: Proxy
    type: select
    proxies:
      - ss1
      - ss2
      - vmess1
      - auto
  
  - name: UseProvider
    type: select
    use:
      - provider1
    proxies:
      - Proxy
      - DIRECT

proxy-providers:
  provider1:
    type: http
    url: "url"
    interval: 3600
    path: ./hk.yaml
    health-check:
      enable: true
      interval: 600
      url: http://www.gstatic.com/generate_204
  test:
    type: file
    path: /test.yaml
    health-check:
      enable: true
      interval: 36000
      url: http://www.gstatic.com/generate_204

rules:
  - DOMAIN-SUFFIX,google.com,auto
  - DOMAIN-KEYWORD,google,auto
  - DOMAIN,google.com,auto
  - DOMAIN-SUFFIX,ad.com,REJECT
  # rename SOURCE-IP-CIDR and would remove after prerelease
  - SRC-IP-CIDR,192.168.1.201/32,DIRECT
  # optional param "no-resolve" for IP rules (GEOIP IP-CIDR)
  - IP-CIDR,127.0.0.0/8,DIRECT
  - GEOIP,CN,DIRECT
  - DST-PORT,80,DIRECT
  - SRC-PORT,7777,DIRECT
  # FINAL would remove after prerelease
  # you also can use `FINAL,Proxy` or `FINAL,,Proxy` now
  - MATCH,auto