Redis连接成功，但执行命令时报错(error) DENIED Redis is running in protected mode

报错内容为：
![](/media/202304/2023-04-12_142052_3217230.27558212244994074.png)

```
(error) DENIED Redis is running in protected mode because protected mode is enabled and no password is set for the default user. 
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: 
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. 
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. 
3) If you started the server manually just for testing, restart it with the '--protected-mode no' option. 
4) Setup a an authentication password for the default user. 
NOTE: You only need to do one of the above things in order 
for the server to start accepting connections from the outside.

```

# 配置文件问题
1、服务端 redis.conf ``bind`` 没有注释
2、服务端 redis.conf ``protect-mode`` 没有改成``no``

3、或者是**修改了配置文件，但是并没有指定配置文件启动（这个比较常见）**。
如果不使用指定配置文件启动，Redis使用的是默认配置，当然就没有取消protect-mode。
完整的命令：
``/usr/local/soft/redis/redis-6.2.3/src/redis-server /usr/local/soft/redis/redis-6.2.3/redis.conf``
【注意，配置为别名时，这个是一行命令，中间不能换行】
或简写为（在src目录下执行时）
``./redis-server ../redis.conf``

![](/media/202308/2023-08-14_160245_5267100.9523987347796925.png)

4、或者是修改了配置没有重启redis服务
连接到redis以后用``shutdown``命令关闭Redis服务
redis> ``shutdown``
（或者直接重启虚拟机最简单）

# 其他解决方法
https://www.mashibing.com/question/detail/66796

也可以直接参考此篇文章：
https://blog.csdn.net/m0_64284147/article/details/125682121