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:
```sh
$ go get -u -v github.com/Dreamacro/clash
```
Pre-built binaries are available here: [release](https://github.com/Dreamacro/clash/releases)
Pre-built Premium binaries are available here: [Premium release](https://github.com/Dreamacro/clash/releases/tag/premium). Source is not currently available.
Check Clash version with:
```sh
$ 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](https://github.com/Unitech/pm2), start the daemon this way:
```sh
$ pm2 start clash
```
If you have Docker installed, it's recommended to deploy Clash directly using `docker-compose`: [run Clash in Docker](https://github.com/Dreamacro/clash/wiki/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:
```sh
$ clash -d .
```
This is an example configuration file (click to expand)
```yml
# 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"
# # 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 > .example.com)
# # +.foo.com equal .foo.com and foo.com
# hosts:
# '*.clash.dev': 127.0.0.1
# '.dev': 127.0.0.1
# 'alpha.clash.dev': '::1'
# '+.foo.dev': 127.0.0.1
# 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
# servername: example.com # priority over wss host
# network: ws
# ws-path: /path
# ws-headers:
# Host: v2ray.com
- name: "vmess-http"
type: vmess
server: server
port: 443
uuid: uuid
alterId: 32
cipher: auto
# udp: true
# network: http
# http-opts:
# # method: "GET"
# # path:
# # - '/'
# # - '/video'
# # headers:
# # Connection:
# # - keep-alive
# 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 relay. 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
# tolerance: 150
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
```
## Advanced
[Provider](https://github.com/Dreamacro/clash/wiki/Provider)
## Documentations
https://clash.gitbook.io/
## Credits
[riobard/go-shadowsocks2](https://github.com/riobard/go-shadowsocks2)
[v2ray/v2ray-core](https://github.com/v2ray/v2ray-core)
## License
[](https://app.fossa.io/projects/git%2Bgithub.com%2FDreamacro%2Fclash?ref=badge_large)
## TODO
- [x] Complementing the necessary rule operators
- [x] Redir proxy
- [x] UDP support
- [x] Connection manager
- [ ] Event API