-DENIED Redis is running in protected mode because protected mode is enabled, no bind address was specified, no authentication password is requested to clients. In this mode connections are only accepted from the loopback interface. If you want to connect from external computers to Redis you may adopt one of the following solutions:

（在主redis伺服器上輸入redis-cli xxx，其中x是你連線伺服器的各種引數，然後在redis命令列輸入CONFIG SET protected-mode no）
1. ) Just disable protected mode sending the command ‘CONFIG SET protected-mode no’ from the loopback interface by connecting to Redis from the same host the server is running, however MAKE SURE Redis is not publicly accessible from internet if you do so. Use CONFIG REWRITE to make this change permanent.
（在啟動redis的配置檔案中找到 protected-mode yes

把他的註釋取消掉設定為no,然後重啟伺服器)
2. ) Alternatively you can just disable the protected mode by editing the Redis configuration file, and setting the protected mode option to ‘no’, and then restarting the server.
（在啟動伺服器時，在redis-server命令後面加上--protected-mode no 引數）
3. ) If you started the server manually just for testing, restart it with the ‘–protected-mode no’ option.
（在配置檔案中配置bind引數，具體檢視配置檔案中的example, 或者 設定配置檔案中的reparequirepass 密碼 ,然後從伺服器連線的時候配置 masterauth 密碼 ）
4. ) Setup a bind address or an authentication password. NOTE: You only need to do one of the above things in order for the server to start accepting connections from the outside.

以上一切都可以從redis配置檔案中找到！！