Skillintermediate

Tunnel Configuration

Tunnels use one of two config sources:

Claude Code Knowledge Pack7/10/2026

Overview

Tunnel Configuration

Config Source

Tunnels use one of two config sources:

Config Source	Storage	Updates	Use Case
Local	`config.yml` file	Edit file, restart	Dev, multi-env, version control
Cloudflare	Dashboard/API	Instant, no restart	Production, centralized management

Token-based tunnels = config source: Cloudflare Locally-managed tunnels = config source: local

Config File Location

~/.cloudflared/config.yml          # User config
/etc/cloudflared/config.yml        # System-wide (Linux)

Basic Structure

tunnel: 
credentials-file: /path/to/.json

ingress:
  - hostname: app.example.com
    service: http://localhost:8000
  - service: http_status:404  # Required catch-all

Ingress Rules

Rules evaluated top to bottom, first match wins.

ingress:
  # Exact hostname + path regex
  - hostname: static.example.com
    path: \\.(jpg|png|css|js)$
    service: https://localhost:8001
  
  # Wildcard hostname
  - hostname: "*.example.com"
    service: https://localhost:8002
  
  # Path only (all hostnames)
  - path: /api/.*
    service: http://localhost:9000
  
  # Catch-all (required)
  - service: http_status:404

Validation:

cloudflared tunnel ingress validate
cloudflared tunnel ingress rule https://foo.example.com

Service Types

Protocol	Format	Client Requirement
HTTP	`http://localhost:8000`	Browser
HTTPS	`https://localhost:8443`	Browser
TCP	`tcp://localhost:2222`	`cloudflared access tcp`
SSH	`ssh://localhost:22`	`cloudflared access ssh`
RDP	`rdp://localhost:3389`	`cloudflared access rdp`
Unix	`unix:/path/to/socket`	Browser
Test	`hello_world`	Browser

Origin Configuration

Connection Settings

originRequest:
  connectTimeout: 30s
  tlsTimeout: 10s
  tcpKeepAlive: 30s
  keepAliveTimeout: 90s
  keepAliveConnections: 100

TLS Settings

originRequest:
  noTLSVerify: true                      # Disable cert verification
  originServerName: "app.internal"       # Override SNI
  caPool: /path/to/ca.pem                # Custom CA

HTTP Settings

originRequest:
  disableChunkedEncoding: true
  httpHostHeader: "app.internal"
  http2Origin: true

Private Network Mode

tunnel: 
credentials-file: /path/to/creds.json

warp-routing:
  enabled: true

cloudflared tunnel route ip add 10.0.0.0/8 my-tunnel
cloudflared tunnel route ip add 192.168.1.100/32 my-tunnel

Config Source Comparison

Local Config

# config.yml
tunnel: 
credentials-file: /path/to/.json

ingress:
  - hostname: app.example.com
    service: http://localhost:8000
  - service: http_status:404

cloudflared tunnel run my-tunnel

Pros: Version control, multi-environment, offline edits Cons: Requires file distribution, manual restarts

Cloudflare Config (Token-Based)

# No config file needed
cloudflared tunnel --no-autoupdate run --token

Configure routes in dashboard: Zero Trust > Networks > Tunnels > [Tunnel] > Public Hostname

Pros: Centralized updates, no file management, instant route changes Cons: Requires dashboard/API access, less portable

Environment Variables

TUNNEL_TOKEN=<token>                    # Token for config source: cloudflare
TUNNEL_ORIGIN_CERT=/path/to/cert.pem   # Override cert path (local config)
NO_AUTOUPDATE=true                      # Disable auto-updates
TUNNEL_LOGLEVEL=debug                   # Log level