update doc

README.md

@@ -30,7 +30,11 @@ frp also has a P2P connect mode.
     * [Using Environment Variables](#using-environment-variables)
     * [Dashboard](#dashboard)
     * [Admin UI](#admin-ui)
+    * [Monitor](#monitor)
+        * [Prometheus](#prometheus)
     * [Authenticating the Client](#authenticating-the-client)
+        * [Token Authentication](#token-authentication)
+        * [OIDC Authentication](#oidc-authentication)
     * [Encryption and Compression](#encryption-and-compression)
         * [TLS](#tls)
     * [Hot-Reloading frpc configuration](#hot-reloading-frpc-configuration)
@@ -49,9 +53,10 @@ frp also has a P2P connect mode.
     * [Get Real IP](#get-real-ip)
         * [HTTP X-Forwarded-For](#http-x-forwarded-for)
         * [Proxy Protocol](#proxy-protocol)
-    * [Require HTTP Basic auth (password) for web services](#require-http-basic-auth-password-for-web-services)
-    * [Custom subdomain names](#custom-subdomain-names)
-    * [URL routing](#url-routing)
+    * [Require HTTP Basic Auth (Password) for Web Services](#require-http-basic-auth-password-for-web-services)
+    * [Custom Subdomain Names](#custom-subdomain-names)
+    * [URL Routing](#url-routing)
+    * [TCP Port Multiplexing](#tcp-port-multiplexing)
     * [Connecting to frps via HTTP PROXY](#connecting-to-frps-via-http-proxy)
     * [Range ports mapping](#range-ports-mapping)
     * [Client Plugins](#client-plugins)
@@ -435,6 +440,18 @@ admin_pwd = admin
 
 Then visit `http://127.0.0.1:7400` to see admin UI, with username and password both being `admin` by default.
 
+### Monitor
+
+When dashboard is enabled, frps will save monitor data in cache. It will be cleared after process restart.
+
+Prometheus is also supported.
+
+#### Prometheus
+
+Enable dashboard first, then configure `enable_prometheus = true` in `frps.ini`.
+
+`http://{dashboard_addr}/metrics` will provide prometheus monitor data.
+
 ### Authenticating the Client
 
 There are 2 authentication methods to authenticate frpc with frps. 
@@ -818,11 +835,11 @@ locations = /news,/about
 
 HTTP requests with URL prefix `/news` or `/about` will be forwarded to **web02** and other requests to **web01**.
 
-### TCP Multiplexing
+### TCP Port Multiplexing
 
 frp supports receiving TCP sockets directed to different proxies on a single port on frps, similar to `vhost_http_port` and `vhost_https_port`.
 
-The only supported TCP multiplexing method available at the moment is `httpconnect` - HTTP CONNECT tunnel.
+The only supported TCP port multiplexing method available at the moment is `httpconnect` - HTTP CONNECT tunnel.
 
 When setting `tcpmux_httpconnect_port` to anything other than 0 in frps under `[common]`, frps will listen on this port for HTTP CONNECT requests.
 

README_zh.md

@@ -26,7 +26,11 @@ frp 是一个可用于内网穿透的高性能的反向代理应用，支持 tcp
     * [配置文件模版渲染](#配置文件模版渲染)
     * [Dashboard](#dashboard)
     * [Admin UI](#admin-ui)
-    * [身份验证](#身份验证)
+    * [监控](#监控)
+        * [Prometheus](#prometheus)
+    * [客户端身份验证](#客户端身份验证)
+        * [Token](#token)
+        * [OIDC](#oidc)
     * [加密与压缩](#加密与压缩)
         * [TLS](#tls)
     * [客户端热加载配置文件](#客户端热加载配置文件)
@@ -48,6 +52,7 @@ frp 是一个可用于内网穿透的高性能的反向代理应用，支持 tcp
     * [通过密码保护你的 web 服务](#通过密码保护你的-web-服务)
     * [自定义二级域名](#自定义二级域名)
     * [URL 路由](#url-路由)
+    * [TCP 端口复用类型](#tcp-端口复用类型)
     * [通过代理连接 frps](#通过代理连接-frps)
     * [范围端口映射](#范围端口映射)
     * [客户端插件](#客户端插件)
@@ -459,9 +464,56 @@ admin_pwd = admin
 
 如果想要在外网环境访问 Admin UI，将 7400 端口映射出去即可，但需要重视安全风险。
 
-### 身份验证
+### 监控
 
-服务端和客户端的 common 配置中的 `token` 参数一致则身份验证通过。
+frps 当启用 Dashboard 后，会默认开启内部的监控，数据存放在内存中，每次重启进程后会清空，监控数据可以通过 dashboard 的地址发送 HTTP 请求获取。
+
+目前还支持 Prometheus 作为可选的监控系统。
+
+#### Prometheus
+
+在 `frps.ini` 中启用 Dashboard，并且设置 `enable_prometheus = true`，则通过 `http://{dashboard_addr}/metrics` 可以获取到 Prometheus 的监控数据。
+
+### 客户端身份验证
+
+目前 frpc 和 frps 之间支持两种身份验证方式，`token` 和 `oidc`。
+
+通过 `frpc.ini` 和 `frps.ini` 中 `[common]` section 的 `authentication_method` 参数配置需要使用的验证方法。
+
+`authenticate_heartbeats = true` 将会在每一个心跳包中附加上鉴权信息。
+
+`authenticate_new_work_conns = true` 将会在每次建立新的工作连接时附加上鉴权信息。
+
+#### Token
+
+当 `authentication_method = token`，将会启用基于 token 的验证方式。
+
+需要在 `frpc.ini` 和 `frps.ini` 的 `[common]` section 中设置相同的 `token`。
+
+#### OIDC
+
+当 `authentication_method = oidc`，将会启用基于 OIDC 的身份验证。
+
+验证流程参考 [Client Credentials Grant](https://tools.ietf.org/html/rfc6749#section-4.4)
+
+启用这一验证方式，配置 `frpc.ini` 和 `frps.ini` 如下：
+
+```ini
+# frps.ini
+[common]
+authentication_method = oidc
+oidc_issuer = https://example-oidc-issuer.com/
+oidc_audience = https://oidc-audience.com/.default
+```
+
+```ini
+[common]
+authentication_method = oidc
+oidc_client_id = 98692467-37de-409a-9fac-bb2585826f18 # Replace with OIDC client ID
+oidc_client_secret = oidc_secret
+oidc_audience = https://oidc-audience.com/.default
+oidc_token_endpoint_url = https://example-oidc-endpoint.com/oauth2/v2.0/token
+```
 
 ### 加密与压缩
 
@@ -487,6 +539,8 @@ use_compression = true
 
 为了端口复用，frp 建立 TLS 连接的第一个字节为 0x17。
 
+通过将 frps.ini 的 `[common]` 中 `tls_only` 设置为 true，可以强制 frps 只接受 TLS 连接。
+
 **注意: 启用此功能后除 xtcp 外，不需要再设置 use_encryption。**
 
 ### 客户端热加载配置文件
@@ -824,6 +878,50 @@ locations = /news,/about
 
 按照上述的示例配置后，`web.yourdomain.com` 这个域名下所有以 `/news` 以及 `/about` 作为前缀的 URL 请求都会被转发到 web02，其余的请求会被转发到 web01。
 
+### TCP 端口复用类型
+
+frp 支持将单个端口收到的连接路由到不同的代理，类似 `vhost_http_port` 和 `vhost_https_port`。
+
+目前支持的复用器只有 `httpconnect`。
+
+当在 `frps.ini` 的 `[common]` 中设置 `tcpmux_httpconnect_port`，frps 将会监听在这个端口，接收 HTTP CONNECT 请求。
+
+frps 会根据 HTTP CONNECT 请求中的 host 路由到不同的后端代理。
+
+示例配置如下：
+
+```ini
+# frps.ini
+[common]
+bind_port = 7000
+tcpmux_httpconnect_port = 1337
+```
+
+```ini
+# frpc.ini
+[common]
+server_addr = x.x.x.x
+server_port = 7000
+
+[proxy1]
+type = tcpmux
+multiplexer = httpconnect
+custom_domains = test1
+
+[proxy2]
+type = tcpmux
+multiplexer = httpconnect
+custom_domains = test2
+```
+
+通过上面的配置，frps 如果接收到 HTTP CONNECT 请求内容:
+
+```
+CONNECT test1 HTTP/1.1\r\n\r\n
+```
+
+该连接将会被路由到 proxy1 。
+
 ### 通过代理连接 frps
 
 在只能通过代理访问外网的环境内，frpc 支持通过 HTTP PROXY 和 frps 进行通信。

conf/frpc_full.ini

@@ -264,3 +264,10 @@ bind_addr = 127.0.0.1
 bind_port = 9001
 use_encryption = false
 use_compression = false
+
+[tcpmuxhttpconnect]
+type = tcpmux
+multiplexer = httpconnect
+local_ip = 127.0.0.1
+local_port = 10701
+custom_domains = tunnel1

conf/frps_full.ini

@@ -23,6 +23,12 @@ vhost_https_port = 443
 # response header timeout(seconds) for vhost http server, default is 60s
 # vhost_http_timeout = 60
 
+# TcpMuxHttpConnectPort specifies the port that the server listens for TCP
+# HTTP CONNECT requests. If the value is 0, the server will not multiplex TCP
+# requests on one single port. If it's not - it will listen on this value for
+# HTTP CONNECT requests. By default, this value is 0.
+# tcpmux_httpconnect_port = 1337
+
 # set dashboard_addr and dashboard_port to view dashboard of frps
 # dashboard_addr's default value is same with bind_addr
 # dashboard is available only if dashboard_port is set
@@ -49,9 +55,38 @@ log_max_days = 3
 # disable log colors when log_file is console, default is false
 disable_log_color = false
 
+# DetailedErrorsToClient defines whether to send the specific error (with debug info) to frpc. By default, this value is true.
+detailed_errors_to_client = true
+
+# AuthenticationMethod specifies what authentication method to use authenticate frpc with frps.
+# If "token" is specified - token will be read into login message.
+# If "oidc" is specified - OIDC (Open ID Connect) token will be issued using OIDC settings. By default, this value is "token".
+authentication_method = token
+
+# AuthenticateHeartBeats specifies whether to include authentication token in heartbeats sent to frps. By default, this value is false.
+authenticate_heartbeats = false
+
+# AuthenticateNewWorkConns specifies whether to include authentication token in new work connections sent to frps. By default, this value is false.
+authenticate_new_work_conns = false
+
 # auth token
 token = 12345678
 
+# OidcClientId specifies the client ID to use to get a token in OIDC authentication if AuthenticationMethod == "oidc".
+# By default, this value is "".
+oidc_client_id =
+
+# OidcClientSecret specifies the client secret to use to get a token in OIDC authentication if AuthenticationMethod == "oidc".
+# By default, this value is "".
+oidc_client_secret = 
+
+# OidcAudience specifies the audience of the token in OIDC authentication if AuthenticationMethod == "oidc". By default, this value is "".
+oidc_audience = 
+
+# OidcTokenEndpointUrl specifies the URL which implements OIDC Token Endpoint.
+# It will be used to get an OIDC token if AuthenticationMethod == "oidc". By default, this value is "".
+oidc_token_endpoint_url = 
+
 # heartbeat configure, it's not recommended to modify the default value
 # the default value of heartbeat_timeout is 90
 # heartbeat_timeout = 90
@@ -65,6 +100,9 @@ max_pool_count = 5
 # max ports can be used for each client, default value is 0 means no limit
 max_ports_per_client = 0
 
+# TlsOnly specifies whether to only accept TLS-encrypted connections. By default, the value is false.
+tls_only = false
+
 # if subdomain_host is not empty, you can set subdomain when type is http or https in frpc's configure file
 # when subdomain is test, the host used by routing is test.frps.com
 subdomain_host = frps.com