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475 lines
12 KiB
Markdown
475 lines
12 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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* [Communicate with your computer in LAN by SSH](#communicate-with-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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* [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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* [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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* [Connect frps by HTTP PROXY](#connect-frps-by-http-proxy)
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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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* [Paypal](#paypal)
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* [Contributors](#contributors)
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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 service behind a NAT or firewall to the internet by a server with public IP address.
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* Inspect all http requests/responses that are transmitted over the tunnel(future).
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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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### Communicate with your computer in LAN by SSH
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1. Modify frps.ini, configure a reverse proxy named [ssh]:
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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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[ssh]
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listen_port = 6000
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auth_token = 123
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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:
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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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auth_token = 123
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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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```
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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 a http reverse proxy named [web] and set http port as 8080, custom domain as `www.yourdomain.com`:
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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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[web]
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type = http
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custom_domains = www.yourdomain.com
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auth_token = 123
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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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auth_token = 123
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[web]
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type = http
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local_port = 80
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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, configure a reverse proxy named [dns]:
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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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[dns]
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type = udp
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listen_port = 6000
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auth_token = 123
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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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auth_token = 123
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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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```
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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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## 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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`auth_token` in frps.ini is configured for each proxy and check for authentication when frpc login in.
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Client that want's to register must set a global `auth_token` equals to frps.ini.
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Note that time duration bewtween 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 whether the type is:
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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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listen_port = 6000
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auth_token = 123
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use_encryption = true
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use_gzip = true
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```
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### Reload configures without frps stopped
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If you want to add a new reverse proxy and avoid restarting frps, you can use this function:
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1. `dashboard_port` should be set in 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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dashboard_port = 7500
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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 frps.ini to add a new proxy [new_ssh]:
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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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dashboard_port = 7500
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[new_ssh]
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listen_port = 6001
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auth_token = 123
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```
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4. Execute `reload` command:
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`./frps -c ./frps.ini --reload`
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5. Start frpc and [new_ssh] is available now.
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### Privilege Mode
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Privilege mode is used for who don't want to do operations in frps everytime adding a new proxy.
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All proxies's configurations are set in frpc.ini when privilege mode is enabled.
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1. Enable privilege mode and set `privilege_token`.Client with the same `privilege_token` can create proxy automaticly:
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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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privilege_mode = true
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privilege_token = 1234
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```
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2. Start frps:
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`./frps -c ./frps.ini`
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3. Enable privilege mode for proxy [ssh]:
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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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privilege_token = 1234
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[ssh]
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privilege_mode = true
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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 username is test:
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`ssh -oPort=6000 test@x.x.x.x`
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#### Port White List
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`privilege_allow_ports` in frps.ini is used for preventing abuse of ports in privilege mode:
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```ini
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# frps.ini
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[common]
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privilege_mode = true
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privilege_token = 1234
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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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### 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 = 50
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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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[ssh]
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type = tcp
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local_port = 22
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pool_count = 10
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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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privilege_mode = true
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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 be only 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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privilege_mode = true
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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 `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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privilege_mode = true
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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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### 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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```ini
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# frpc.ini
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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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## Development Plan
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* Url router.
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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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* Debug mode for frpc, prestent proxy status in terminal.
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* Inspect all http requests/responses that are transmitted over the tunnel.
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* Frpc can directly be a webserver for static files.
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* Full control mode, dynamically modify frpc's configure with dashboard in frps.
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* P2p communicate by make udp hole to penetrate NAT.
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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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### Paypal
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Donate money by [paypal](https://www.paypal.me/fatedier) to my account **fatedier@gmail.com**.
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## Contributors
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||
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* [fatedier](https://github.com/fatedier)
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* [Hurricanezwf](https://github.com/Hurricanezwf)
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* [Pan Hao](https://github.com/vashstorm)
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* [Danping Mao](https://github.com/maodanp)
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* [Eric Larssen](https://github.com/ericlarssen)
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* [Damon Zhao](https://github.com/se77en)
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* [Manfred Touron](https://github.com/moul)
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* [xuebing1110](https://github.com/xuebing1110)
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