fix: small fixes

internal/server/forward.go

@@ -14,8 +14,8 @@ import (
 // supports three transports:
 //   - "http": tunneled over the HTTP long-poll channel (works anywhere nginx
 //     reaches, highest latency);
-//   - "tcp":  direct TCP multiplexed over the 8446 tunnel (low latency);
-//   - "udp":  direct UDP over the 8446 channel.
+//   - "tcp":  direct TCP multiplexed over the tunnel port (low latency);
+//   - "udp":  direct UDP over the tunnel port.
 type forwardManager struct {
 	hub *Hub
 	tun *tunnelHub
@@ -92,11 +92,11 @@ func (m *forwardManager) acceptTCP(rule ForwardRule, ln net.Listener) {
 	}
 }
 
-// bridgeDirect wires a connection to the agent's low-latency 8446 tunnel.
+// bridgeDirect wires a connection to the agent's low-latency direct tunnel.
 func (m *forwardManager) bridgeDirect(rule ForwardRule, conn net.Conn) {
 	at := m.tun.get(rule.AgentID)
 	if at == nil {
-		// No direct tunnel (agent offline or 8446 unreachable).
+		// No direct tunnel (agent offline or the tunnel port unreachable).
 		conn.Close()
 		return
 	}