tun2: be less greedy about failure checking

lib/tun2/server.go

@@ -157,7 +157,7 @@ func (s *Server) ListenAndServe() error {
 
 	go func() {
 		for {
-			time.Sleep(time.Second)
+			time.Sleep(5 * time.Second)
 
 			now := time.Now()
 
@@ -318,7 +318,7 @@ func (s *Server) HandleConn(c net.Conn, isKCP bool) {
 		user:     defaultUser, // XXX RIP replace this with the actual token user once users are implemented
 		domain:   auth.Domain,
 		cancel:   cancel,
-		detector: failure.New(15, 3),
+		detector: failure.New(15, 1),
 	}
 
 	ln.Log(ln.F{