设置密码
$ redis-cli -h 1.1.1.1 -p 11299
1.1.1.1:11299> config set requirepass "<your password>"
如果设置了密码，但是没有输入密码，在get时，就会出现下面错误
$ redis-cli -h 1.1.1.1 -p 11299
1.1.1.1:11299> get s
(error) NOAUTH Authentication required.
验证密码
密码验证成功
1.1.1.1:11299> auth <your password>
OK
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