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Telebit

| Telebit Client | Telebit Relay | Telebit Mgmt |

A secure, end-to-end Encrypted tunnel.

Because friends don't let friends localhost.

Usage

telebit --env ./.env --verbose

Command-line flags or .env may be used.

# --acme-agree
export ACME_AGREE=true
# --acme-email
export ACME_EMAIL=johndoe@example.com
# --vendor-id
export VENDOR_ID=example.com
# --secret
export SECRET=QQgPyfzVdxJTcUc1ceot3pgJFKtWSHMQ
# --tunnel-relay
export TUNNEL_RELAY_URL=https://tunnel.example.com/
# --tls-locals
export TLS_LOCALS=https:*:3000

See ./telebit --help for all options.
See examples/client.env for detail explanations.

Build

goreleaser --rm-dist --skip-publish --snapshot

Install Go

Installs Go to ~/.local/opt/go for MacOS and Linux:

curl -fsS https://webinstall.dev/golang | bash

Windows 10:

curl.exe -fsSA "MS" https://webinstall.dev/golang | powershell

Note: The minimum required go version is shown in go.mod. DO NOT use with GOPATH!

Building Telebit

All dependencies are included, at the correct version in the ./vendor directory.

go generate ./...

CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -mod vendor -o telebit-linux ./cmd/telebit/*.go
CGO_ENABLED=0 GOOS=darwin GOARCH=amd64 go build -mod vendor -o telebit-macos ./cmd/telebit/*.go
CGO_ENABLED=0 GOOS=windows GOARCH=amd64 go build -mod vendor -o telebit-windows-debug.exe ./cmd/telebit/*.go
CGO_ENABLED=0 GOOS=windows GOARCH=amd64 go build -mod vendor -ldflags "-H windowsgui" -o telebit-windows.exe ./cmd/telebit/*.go

The binary can be built with VENDOR_ID and CLIENT_SECRET built into the binary. You can also change the serviceName and serviceDescription at build time. See examples/run-as-client.sh.

Local Web Application

Currently only raw TCP is tunneled.

This means that either the application must handle and terminate encrypted TLS connections, or use HTTP (instead of HTTPS). This will be available in the next release.

mkdir -p tmp-app
pushd tmp-app/

cat << EOF > index.html
Hello, World!
EOF

python3 -m http.server 3000

Help

Usage of telebit:
  ACME_AGREE
  --acme-agree
    	agree to the terms of the ACME service provider (required)
  --acme-directory string
    	ACME Directory URL
  ACME_EMAIL
  --acme-email string
    	email to use for Let's Encrypt / ACME registration
  --acme-http-01
    	enable HTTP-01 ACME challenges
  ACME_HTTP_01_RELAY_URL
  --acme-http-01-relay-url string
    	the base url of the ACME HTTP-01 relay, if not the same as the DNS-01 relay
  --acme-relay-url string
    	the base url of the ACME DNS-01 relay, if not the same as the tunnel relay
  --acme-staging
    	get fake certificates for testing
  --acme-storage string
    	path to ACME storage directory (default "./acme.d/")
  --acme-tls-alpn-01
    	enable TLS-ALPN-01 ACME challenges
  API_HOSTNAME
  --api-hostname string
    	the hostname used to manage clients
  --auth-url string
    	the base url for authentication, if not the same as the tunnel relay
  DEBUG
  --debug
    	show debug output (default true)
  --dns-01-delay duration
    	add an extra delay after dns self-check to allow DNS-01 challenges to propagate
  --dns-resolvers string
    	a list of resolvers in the format 8.8.8.8:53,8.8.4.4:53
  --env string
    	path to .env file
  --leeway duration
    	allow for time drift / skew (hard-coded to 15 minutes) (default 15m0s)
  LISTEN
  --listen string
    	list of bind addresses on which to listen, such as localhost:80, or :443
  LOCALS
  --locals string
    	a list of <from-domain>:<to-port>
  PORT_FORWARD
  --port-forward string
    	a list of <from-port>:<to-port> for raw port-forwarding
  SECRET
  --secret string
    	the same secret used by telebit-relay (used for JWT authentication)
  --spf-domain string
    	domain with SPF-like list of IP addresses which are allowed to connect to clients
  TLS_LOCALS
  --tls-locals string
    	like --locals, but TLS will be used to connect to the local port
  --token string
    	an auth token for the server (instead of generating --secret); use --token=false to ignore any $TOKEN in env
  TUNNEL_RELAY_URL
  --tunnel-relay-url string
    	the websocket url at which to connect to the tunnel relay
  VENDOR_ID
  --vendor-id string
    	a unique identifier for a deploy target environment
  VERBOSE
  VERBOSE_BYTES
  VERBOSE_RAW
  --verbose
    	log excessively

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