mongodb设置集群认证启动报错keyFilers0.key are too open

添加参数
clusterAuthMode=keyFile
keyFile=/usr/local/mongodb/conf/keyFilers0.key


mongodb 启动时报错
2016-03-18T10:39:58.889+0800 I CONTROL  [main] ***** SERVER RESTARTED *****
2016-03-18T10:39:58.918+0800 I ACCESS   [main] permissions on 

/usr/local/mongodb/conf/keyFilers0.key are too open


这是因为mongo key文件权限过大造成的 
解决方法：
chmod 600  /export/mongodb/keyfile 


登录
[root@mongmaster conf]# mongo 192.168.1.9:27017
MongoDB shell version: 3.2.4
connecting to: 192.168.1.9:27017/test
zbmongodb:PRIMARY> use admin
switched to db admin
mongodb:PRIMARY> db.auth('root','zbmong@admin')
1


或者直接登录
[root@mongmaster conf]# mongo --host=192.168.1.9  --port=27017 -u root -p 


"mong@admin" --authenticationDatabase admin
MongoDB shell version: 3.2.4
connecting to: 192.168.1.9:27017/test
Server has startup warnings: 
2016-03-18T10:43:11.110+0800 I CONTROL  [initandlisten] ** WARNING: You are 


running this process as the root user, which is not recommended.
2016-03-18T10:43:11.110+0800 I CONTROL  [initandlisten] 
mongodb:PRIMARY> show dbs
admin  0.000GB
local  0.000GB
wolf   0.000GB