Clash
A rule-based tunnel in Go.
## Features
- Local HTTP/HTTPS/SOCKS server with authentication support
- VMess, Shadowsocks, Trojan, Snell protocol support for remote connections
- Built-in DNS server that aims to minimize DNS pollution attack impact, supports DoH/DoT upstream and fake IP.
- 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. Deploy Clash on your Internet gateway with `iptables`.
- Comprehensive HTTP RESTful API controller
## Getting Started
Documentations are now moved to [GitHub Wiki](https://github.com/Dreamacro/clash/wiki).
## Advanced usage for this fork branch
### TUN configuration
Support macOS Linux and Windows.
For Windows, you should download the [Wintun](https://www.wintun.net) driver and copy `wintun.dll` into the System32 directory.
```yaml
# Enable the TUN listener
tun:
enable: true
stack: system # system or gvisor
dns-listen: 0.0.0.0:53 # additional dns server listen on TUN
auto-route: true # auto set global route
```
### Rules configuration
- Support rule `GEOSITE`
- Support `multiport` condition for rule `SRC-PORT` and `DST-PORT`
- Support not match condition for rule `GEOIP`
- Support `network` condition for all rules
The `GEOSITE` and `GEOIP` databases via https://github.com/Loyalsoldier/v2ray-rules-dat
```yaml
rules:
# network condition for rules
- DOMAIN-SUFFIX,bilibili.com,DIRECT,tcp
- DOMAIN-SUFFIX,bilibili.com,REJECT,udp
# multiport condition for rule SRC-PORT and DST-PORT
- DST-PORT,123/136/137-139,DIRECT,udp
# rule GEOSITE
- GEOSITE,category-ads-all,REJECT
- GEOSITE,icloud@cn,DIRECT
- GEOSITE,apple@cn,DIRECT
- GEOSITE,apple-cn,DIRECT
- GEOSITE,microsoft@cn,DIRECT
- GEOSITE,facebook,PROXY
- GEOSITE,youtube,PROXY
- GEOSITE,geolocation-cn,DIRECT
- GEOSITE,gfw,PROXY
- GEOSITE,greatfire,PROXY
#- GEOSITE,geolocation-!cn,PROXY
- GEOIP,telegram,PROXY,no-resolve
- GEOIP,private,DIRECT,no-resolve
- GEOIP,cn,DIRECT
# Not match condition for rule GEOIP
#- GEOIP,!cn,PROXY
- MATCH,PROXY
```
### Proxies configuration
Support outbound transport protocol `VLESS`
```yaml
proxies:
- name: "vless"
type: vless
server: server
port: 443
uuid: uuid
# udp: true
# skip-cert-verify: true
# servername: example.com # priority over wss host
# network: ws # not support xtls
# ws-path: /path
# ws-headers:
# Host: v2ray.com
- name: "vless-h2"
type: vless
server: server
port: 443
uuid: uuid
network: h2
# flow: xtls-rprx-direct # xtls-rprx-origin xtls-rprx-direct # enable xtls
h2-opts:
host:
- http.example.com
- http-alt.example.com
path: /
- name: "vless-http"
type: vless
server: server
port: 443
uuid: uuid
# udp: true
# network: http
# flow: xtls-rprx-direct # xtls-rprx-origin xtls-rprx-direct # enable xtls
# http-opts:
# # method: "GET"
# # path:
# # - '/'
# # - '/video'
# # headers:
# # Connection:
# # - keep-alive
- name: vless-grpc
server: server
port: 443
type: vless
uuid: uuid
network: grpc
# flow: xtls-rprx-direct # xtls-rprx-origin xtls-rprx-direct # enable xtls
servername: example.com
# skip-cert-verify: true
grpc-opts:
grpc-service-name: "example"
```
### IPTABLES auto-configuration
Only work on Linux OS who support `iptables`, Clash will auto-configuration iptables for tproxy listener when `tproxy-port` value isn't zero.
If `TPROXY` is enabled, the `TUN` must be disabled.
```yaml
# Enable the TPROXY listener
tproxy-port: 9898
# Disable the TUN listener
tun:
enable: false
```
Create user given name `clash`
Run Clash by user `clash` as a daemon.
Create the systemd configuration file at /etc/systemd/system/clash.service:
```shell
[Unit]
Description=Clash daemon, A rule-based proxy in Go.
After=network.target
[Service]
Type=simple
User=clash
Group=clash
CapabilityBoundingSet=cap_net_admin
AmbientCapabilities=cap_net_admin
Restart=always
ExecStart=/usr/local/bin/clash -d /etc/clash
[Install]
WantedBy=multi-user.target
```
Launch clashd on system startup with:
```shell
$ systemctl enable clash
```
Launch clashd immediately with:
```shell
$ systemctl start clash
```
### Display Process name
Add field `Process` to `Metadata` and prepare to get process name for Restful API `GET /connections`
To display process name in GUI please use https://yaling888.github.io/yacd/
## Premium Release
[Release](https://github.com/Dreamacro/clash/releases/tag/premium)
## Development
If you want to build an application that uses clash as a library, check out the the [GitHub Wiki](https://github.com/Dreamacro/clash/wiki/use-clash-as-a-library)
## Credits
* [riobard/go-shadowsocks2](https://github.com/riobard/go-shadowsocks2)
* [v2ray/v2ray-core](https://github.com/v2ray/v2ray-core)
## License
This software is released under the GPL-3.0 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