mtg/contrib/sni-router/mtg-config.toml

# Minimal mtg configuration for the SNI-router setup.
#
# 1. Generate a secret:  mtg generate-secret --hex <your.domain>
# 2. Paste it into the `secret` field below.
# 3. Set DOMAIN=<your.domain> in .env (HAProxy + Caddy pick it up).

secret = "PASTE_YOUR_SECRET_HERE"
bind-to = "[::]:3128"

# HAProxy in front sends PROXY protocol v2 headers so mtg can see the
# real client IP.  Keep this in sync with haproxy.cfg (`send-proxy-v2`).
proxy-protocol-listener = true

# Fronting target: point mtg at the Caddy container directly so its
# fallback dial (for non-Telegram TLS) bypasses HAProxy and doesn't
# loop back here.  Without this, mtg resolves the secret's hostname
# via DNS, which in this setup resolves to this server -> HAProxy ->
# mtg again.  See README's "Fronting loop" section for the long form.
# Requires mtg >= 2.4 (#480 added hostname acceptance for the target).
[domain-fronting]
host = "web"
port = 8443
proxy-protocol = true

[defense.anti-replay]
enabled = true
max-size = "1mib"
error-rate = 0.001