求助连接elasticsearch

在github上学习这个flare项目，其中的“beacon”功能需要连接elasticsearch
按照作者教程执行命令“eb = elasticBeacon(es_host='localhost')”时报错：
'elasticBeacon' object has no attribute 'auth_user'
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/local/lib/python2.7/dist-packages/Flare-0.3-py2.7.egg/flare/analytics/command_control.py", line 145, in __init__
    "Could not connect to ElasticSearch -- Please verify your settings are correct and try again.")
Exception: Could not connect to ElasticSearch -- Please verify your settings are correct and try again.
 
是不是因为我没有设置好端口隧道？作者在教程中给了一句ssh命令“ssh -NfL 9200:localhost:9200 user@x.x.x.x”，我不知道怎么使用这个命令，求大神帮看看
 
项目：https://github.com/austin-taylor/flare
文章：http://www.austintaylor.io/det ... tems/
翻译：https://www.anquanke.com/post/id/86285