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529 lines
14 KiB
Markdown
529 lines
14 KiB
Markdown
# frp
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[](https://travis-ci.org/fatedier/frp)
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[README](README.md) | [中文文档](README_zh.md)
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## What is frp?
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frp is a fast reverse proxy to help you expose a local server behind a NAT or firewall to the internet. Now, it supports tcp, udp, http and https protocol when requests can be forwarded by domains to backward web services.
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## Table of Contents
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<!-- vim-markdown-toc GFM -->
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* [What can I do with frp?](#what-can-i-do-with-frp)
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* [Status](#status)
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* [Architecture](#architecture)
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* [Example Usage](#example-usage)
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* [Access your computer in LAN by SSH](#access-your-computer-in-lan-by-ssh)
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* [Visit your web service in LAN by custom domains](#visit-your-web-service-in-lan-by-custom-domains)
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* [Forward DNS query request](#forward-dns-query-request)
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* [Forward unix domain socket](#forward-unix-domain-socket)
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* [Connect website through frpc's network](#connect-website-through-frpcs-network)
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* [Features](#features)
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* [Dashboard](#dashboard)
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* [Authentication](#authentication)
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* [Encryption and Compression](#encryption-and-compression)
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* [Reload configures without frps stopped](#reload-configures-without-frps-stopped)
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* [Privilege Mode](#privilege-mode)
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* [Port White List](#port-white-list)
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* [TCP Stream Multiplexing](#tcp-stream-multiplexing)
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* [Support KCP Protocol](#support-kcp-protocol)
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* [Connection Pool](#connection-pool)
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* [Rewriting the Host Header](#rewriting-the-host-header)
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* [Password protecting your web service](#password-protecting-your-web-service)
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* [Custom subdomain names](#custom-subdomain-names)
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* [URL routing](#url-routing)
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* [Connect frps by HTTP PROXY](#connect-frps-by-http-proxy)
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* [Plugin](#plugin)
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* [Development Plan](#development-plan)
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* [Contributing](#contributing)
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* [Donation](#donation)
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* [AliPay](#alipay)
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* [Wechat Pay](#wechat-pay)
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* [Paypal](#paypal)
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<!-- vim-markdown-toc -->
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## What can I do with frp?
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* Expose any http and https service behind a NAT or firewall to the internet by a server with public IP address(Name-based Virtual Host Support).
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* Expose any tcp or udp service behind a NAT or firewall to the internet by a server with public IP address.
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## Status
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frp is under development and you can try it with latest release version. Master branch for releasing stable version when dev branch for developing.
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**We may change any protocol and can't promise backward compatible. Please check the release log when upgrading.**
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## Architecture
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## Example Usage
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Firstly, download the latest programs from [Release](https://github.com/fatedier/frp/releases) page according to your os and arch.
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Put **frps** and **frps.ini** to your server with public IP.
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Put **frpc** and **frpc.ini** to your server in LAN.
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### Access your computer in LAN by SSH
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1. Modify frps.ini:
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```ini
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# frps.ini
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[common]
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bind_port = 7000
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```
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2. Start frps:
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`./frps -c ./frps.ini`
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3. Modify frpc.ini, `server_addr` is your frps's server IP:
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```ini
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# frpc.ini
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[common]
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server_addr = x.x.x.x
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server_port = 7000
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[ssh]
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type = tcp
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local_ip = 127.0.0.1
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local_port = 22
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remote_port = 6000
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```
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4. Start frpc:
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`./frpc -c ./frpc.ini`
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5. Connect to server in LAN by ssh assuming that username is test:
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`ssh -oPort=6000 test@x.x.x.x`
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### Visit your web service in LAN by custom domains
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Sometimes we want to expose a local web service behind a NAT network to others for testing with your own domain name and unfortunately we can't resolve a domain name to a local ip.
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However, we can expose a http or https service using frp.
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1. Modify frps.ini, configure http port 8080:
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```ini
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# frps.ini
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[common]
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bind_port = 7000
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vhost_http_port = 8080
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```
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2. Start frps:
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`./frps -c ./frps.ini`
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3. Modify frpc.ini and set remote frps server's IP as x.x.x.x. The `local_port` is the port of your web service:
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```ini
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# frpc.ini
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[common]
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server_addr = x.x.x.x
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server_port = 7000
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[web]
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type = http
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local_port = 80
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custom_domains = www.yourdomain.com
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```
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4. Start frpc:
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`./frpc -c ./frpc.ini`
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5. Resolve A record of `www.yourdomain.com` to IP `x.x.x.x` or CNAME record to your origin domain.
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6. Now visit your local web service using url `http://www.yourdomain.com:8080`.
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### Forward DNS query request
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1. Modify frps.ini:
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```ini
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# frps.ini
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[common]
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bind_port = 7000
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```
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2. Start frps:
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`./frps -c ./frps.ini`
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3. Modify frpc.ini, set remote frps's server IP as x.x.x.x, forward dns query request to google dns server `8.8.8.8:53`:
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```ini
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# frpc.ini
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[common]
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server_addr = x.x.x.x
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server_port = 7000
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[dns]
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type = udp
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local_ip = 8.8.8.8
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local_port = 53
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remote_port = 6000
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```
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4. Start frpc:
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`./frpc -c ./frpc.ini`
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5. Send dns query request by dig:
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`dig @x.x.x.x -p 6000 www.goolge.com`
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### Forward unix domain socket
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Using tcp port to connect unix domain socket like docker daemon.
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1. Modify frps.ini:
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```ini
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# frps.ini
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[common]
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bind_port = 7000
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```
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2. Start frps:
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`./frps -c ./frps.ini`
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3. Modify frpc.ini:
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```ini
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# frpc.ini
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[common]
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server_addr = x.x.x.x
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server_port = 7000
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[unix_domain_socket]
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type = tcp
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remote_port = 6000
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plugin = unix_domain_socket
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plugin_unix_path = /var/run/docker.sock
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```
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4. Start frpc:
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`./frpc -c ./frpc.ini`
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5. Get docker version by curl command:
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`curl http://x.x.x.x:6000/version`
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### Connect website through frpc's network
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Configure frps same as above.
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1. Modify frpc.ini:
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```ini
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# frpc.ini
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[common]
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server_addr = x.x.x.x
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server_port = 7000
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[http_proxy]
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type = tcp
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remote_port = 6000
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plugin = http_proxy # or socks5
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```
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4. Start frpc:
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`./frpc -c ./frpc.ini`
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5. Set http proxy or socks5 proxy `x.x.x.x:6000` in your browser and visit website through frpc's network.
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## Features
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### Dashboard
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Check frp's status and proxies's statistics information by Dashboard.
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Configure a port for dashboard to enable this feature:
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```ini
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[common]
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dashboard_port = 7500
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# dashboard's username and password are both optional，if not set, default is admin.
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dashboard_user = admin
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dashboard_pwd = admin
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```
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Then visit `http://[server_addr]:7500` to see dashboard, default username and password are both `admin`.
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### Authentication
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Since v0.10.0, you only need to set `privilege_token` in frps.ini and frpc.ini.
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Note that time duration between server of frpc and frps mustn't exceed 15 minutes because timestamp is used for authentication.
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Howerver, this timeout duration can be modified by setting `authentication_timeout` in frps's configure file. It's defalut value is 900, means 15 minutes. If it is equals 0, then frps will not check authentication timeout.
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### Encryption and Compression
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Defalut value is false, you could decide if the proxy will use encryption or compression:
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```ini
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# frpc.ini
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[ssh]
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type = tcp
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local_port = 22
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remote_port = 6000
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use_encryption = true
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use_compression = true
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```
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### Reload configures without frps stopped
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This feature is removed since v0.10.0.
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### Privilege Mode
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Privilege mode is the default and only mode support in frp since v0.10.0. All proxy configurations are set in client.
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#### Port White List
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`privilege_allow_ports` in frps.ini is used for preventing abuse of ports:
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```ini
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# frps.ini
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[common]
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privilege_allow_ports = 2000-3000,3001,3003,4000-50000
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```
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`privilege_allow_ports` consists of a specific port or a range of ports divided by `,`.
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### TCP Stream Multiplexing
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frp support tcp stream multiplexing since v0.10.0 like HTTP2 Multiplexing. All user requests to same frpc can use only one tcp connection.
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You can disable this feature by modify frps.ini and frpc.ini:
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```ini
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# frps.ini and frpc.ini, must be same
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[common]
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tcp_mux = false
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```
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### Support KCP Protocol
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frp support kcp protocol since v0.12.0.
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KCP is a fast and reliable protocol that can achieve the transmission effect of a reduction of the average latency by 30% to 40% and reduction of the maximum delay by a factor of three, at the cost of 10% to 20% more bandwidth wasted than TCP.
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Using kcp in frp:
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1. Enable kcp protocol in frps:
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```ini
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# frps.ini
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[common]
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bind_port = 7000
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# kcp needs to bind a udp port, it can be same with 'bind_port'
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kcp_bind_port = 7000
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```
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2. Configure the protocol used in frpc to connect frps:
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```ini
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# frpc.ini
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[common]
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server_addr = x.x.x.x
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# specify the 'kcp_bind_port' in frps
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server_port = 7000
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protocol = kcp
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```
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### Connection Pool
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By default, frps send message to frpc for create a new connection to backward service when getting an user request.If a proxy's connection pool is enabled, there will be a specified number of connections pre-established.
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This feature is fit for a large number of short connections.
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1. Configure the limit of pool count each proxy can use in frps.ini:
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```ini
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# frps.ini
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[common]
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max_pool_count = 5
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```
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2. Enable and specify the number of connection pool:
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```ini
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# frpc.ini
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[common]
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pool_count = 1
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```
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### Rewriting the Host Header
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When forwarding to a local port, frp does not modify the tunneled HTTP requests at all, they are copied to your server byte-for-byte as they are received. Some application servers use the Host header for determining which development site to display. For this reason, frp can rewrite your requests with a modified Host header. Use the `host_header_rewrite` switch to rewrite incoming HTTP requests.
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```ini
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# frpc.ini
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[web]
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type = http
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local_port = 80
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custom_domains = test.yourdomain.com
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host_header_rewrite = dev.yourdomain.com
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```
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If `host_header_rewrite` is specified, the Host header will be rewritten to match the hostname portion of the forwarding address.
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### Password protecting your web service
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Anyone who can guess your tunnel URL can access your local web server unless you protect it with a password.
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This enforces HTTP Basic Auth on all requests with the username and password you specify in frpc's configure file.
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It can only be enabled when proxy type is http.
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```ini
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# frpc.ini
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[web]
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type = http
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local_port = 80
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custom_domains = test.yourdomain.com
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http_user = abc
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http_pwd = abc
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```
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Visit `http://test.yourdomain.com` and now you need to input username and password.
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### Custom subdomain names
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It is convenient to use `subdomain` configure for http、https type when many people use one frps server together.
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```ini
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# frps.ini
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subdomain_host = frps.com
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```
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Resolve `*.frps.com` to the frps server's IP.
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```ini
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# frpc.ini
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[web]
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type = http
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local_port = 80
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subdomain = test
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```
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Now you can visit your web service by host `test.frps.com`.
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Note that if `subdomain_host` is not empty, `custom_domains` should not be the subdomain of `subdomain_host`.
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### URL routing
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frp support forward http requests to different backward web services by url routing.
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`locations` specify the prefix of URL used for routing. frps first searches for the most specific prefix location given by literal strings regardless of the listed order.
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```ini
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# frpc.ini
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[web01]
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type = http
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local_port = 80
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custom_domains = web.yourdomain.com
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locations = /
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[web02]
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type = http
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local_port = 81
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custom_domains = web.yourdomain.com
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locations = /news,/about
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```
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Http requests with url prefix `/news` and `/about` will be forwarded to **web02** and others to **web01**.
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### Connect frps by HTTP PROXY
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frpc can connect frps using HTTP PROXY if you set os environment `HTTP_PROXY` or configure `http_proxy` param in frpc.ini file.
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It only works when protocol is tcp.
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```ini
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# frpc.ini
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[common]
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server_addr = x.x.x.x
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server_port = 7000
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http_proxy = http://user:pwd@192.168.1.128:8080
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```
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### Plugin
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frpc only forward request to local tcp or udp port by default.
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Plugin is used for providing rich features. There are built-in plugins such as **unix_domain_socket**, **http_proxy**, **socks5** and you can see [example usage](#example-usage).
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Specify which plugin to use by `plugin` parameter. Configuration parameters of plugin should be started with `plugin_`. `local_ip` and `local_port` is useless for plugin.
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Using plugin **http_proxy**:
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```ini
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# frpc.ini
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[http_proxy]
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type = tcp
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remote_port = 6000
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plugin = http_proxy
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plugin_http_user = abc
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plugin_http_passwd = abc
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```
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`plugin_http_user` and `plugin_http_passwd` are configuration parameters used in `http_proxy` plugin.
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## Development Plan
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* Log http request information in frps.
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* Direct reverse proxy, like haproxy.
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* Load balance to different service in frpc.
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* Frpc can directly be a webserver for static files.
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* P2p communicate by make udp hole to penetrate NAT.
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* kubernetes ingress support.
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## Contributing
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Interested in getting involved? We would like to help you!
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* Take a look at our [issues list](https://github.com/fatedier/frp/issues) and consider sending a Pull Request to **dev branch**.
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* If you want to add a new feature, please create an issue first to describe the new feature, as well as the implementation approach. Once a proposal is accepted, create an implementation of the new features and submit it as a pull request.
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* Sorry for my poor english and improvement for this document is welcome even some typo fix.
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* If you have some wanderful ideas, send email to fatedier@gmail.com.
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**Note: We prefer you to give your advise in [issues](https://github.com/fatedier/frp/issues), so others with a same question can search it quickly and we don't need to answer them repeatly.**
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## Donation
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If frp help you a lot, you can support us by:
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frp QQ group: 606194980
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### AliPay
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### Wechat Pay
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### Paypal
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Donate money by [paypal](https://www.paypal.me/fatedier) to my account **fatedier@gmail.com**.
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