frp

name	frp
description	Use this skill when the user wants to expose a local server behind NAT/firewall to the internet using frp reverse proxy tunnels (TCP, UDP, HTTP, HTTPS, STCP).

frp Plugin

frp is a fast reverse proxy for exposing a local server behind a NAT or firewall to the internet. It supports TCP, UDP, HTTP, HTTPS, STCP, SUDP, and XTCP tunnel types.

Commands

Self

• frp self version — Print frpc version

Client Operations

• frp client run -c <config.toml> — Run frpc client
• frp client verify -c <config.toml> — Validate config syntax
• frp client reload -c <config.toml> — Hot-reload config via admin API
• frp client status -c <config.toml> — Show proxy status via admin API
• frp client stop -c <config.toml> — Stop frpc via admin API
• frp client nathole discover — Discover NAT type via STUN

Single Proxy (no config file)

• frp proxy tcp --localPort 22 --remotePort 6000 — TCP tunnel
• frp proxy udp --localPort 53 --remotePort 6001 — UDP tunnel
• frp proxy http --localPort 8080 --customDomains example.com — HTTP tunnel
• frp proxy https --localPort 443 --customDomains example.com — HTTPS tunnel

Server Operations

• frp server run -c <config.toml> — Run frps server

Passthrough

• frp _ _ <args> — Raw passthrough for any frpc command

Usage Examples

• "start an frp client with config"
• "validate my frpc config file"
• "check frp proxy status"
• "hot-reload frpc configuration"
• "expose local port 22 via TCP on remote port 6000"
• "check version of frpc"
• "run frps server with config"

Installation

brew install frp
# or download from GitHub releases
# https://github.com/fatedier/frp/releases/latest

Key Features

• TCP, UDP, HTTP, HTTPS tunnel support
• STCP (secret TCP) for encrypted point-to-point tunnels
• XTCP for P2P connections (no server relay)
• TLS encryption for all control/data connections
• Admin UI with REST API (JSON)
• Hot-reload configuration without restart
• NAT type discovery via STUN
• Prometheus metrics on server dashboard
• Dynamic proxy management (v0.68+)

Requirements

• frpc binary installed
• frps server running on a public-facing machine (for client mode)
• TOML config file for most production usage
• A running frps server instance to connect to

Architecture

[Local Service] → [frpc] → [frps (public server)] → [Internet Users]