安装及常用命令

redis的yum方式安装

先查看是否已经安装redis执行命令
rpm -qa | grep redis
如果存在，将存在的卸载：(-y 代表自动选择)
yum remove xxx -y
在线安装redis
yum install redis
安装本地已经下载好的redis安装包
yum localinstall redis6.2.7.rpm -y
安装成功后，查看已经安装好之后的目录
rpm -ql redis
查看已经安装的redis版本
redis-cli --version
启动redis服务
systemctl start redis
查看redis服务启用状态
systemctl status redis
关闭redis服务
systemctl stop redis
重启redis服务
systemctl restart redis
将redis服务设置为开启启动
systemctl enable redis
显示所有已启动的服务
systemctl list-units --type=service
查询redis进程
ps -ef | grep redis
根据端口号查询redis进程
netstat -lnp|grep 6379
查找redis的配置文件redis.conf find / -name redis.conf

问题

reids服务器的6379端口telnet不通

查看reids进程和端口，都是存在的。只是ip地址是127.0.0.1而不是0.0.0.0,只是本机能使用

3.查找redis的配置文件redis.conf

使用命令：find / -name redis.conf

4. 编辑配置文件vim /etc/redis.conf

bind 127.0.0.1修改为bind 0.0.0.0

5.重启redis-server

如果bind 改成0.0.0.0会被阿里云服务器动态感知为安全漏洞。可以设置密码，直接在redis.conf里面设置加一行

bind 0.0.0.0下面加上

requirepass 123456(123456是要设置的密码)

ERR Client sent AUTH错误

Caused by: io.lettuce.core.RedisCommandExecutionException: ERR Client sent AUTH, but no password is

错误提示：

主要错误信息：
Caused by: io.lettuce.core.RedisCommandExecutionException: 
 
ERR Client sent AUTH, but no password is 
 
原因：RedisCommandExecutionException：错误客户端发送了身份验证，但没有密码 
 
 
具体错误信息：
Caused by: io.lettuce.core.RedisCommandExecutionException: ERR Client sent AUTH, but no password is set
	at io.lettuce.core.ExceptionFactory.createExecutionException(ExceptionFactory.java:135)
	at io.lettuce.core.ExceptionFactory.createExecutionException(ExceptionFactory.java:108)
	at io.lettuce.core.protocol.AsyncCommand.completeResult(AsyncCommand.java:120)
	at io.lettuce.core.protocol.AsyncCommand.complete(AsyncCommand.java:111)
	at io.lettuce.core.protocol.CommandWrapper.complete(CommandWrapper.java:59)
	at io.lettuce.core.protocol.CommandHandler.complete(CommandHandler.java:646)
	at io.lettuce.core.protocol.CommandHandler.decode(CommandHandler.java:604)
	at io.lettuce.core.protocol.CommandHandler.channelRead(CommandHandler.java:556)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348)
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340)
	at io.netty.channel.ChannelInboundHandlerAdapter.channelRead(ChannelInboundHandlerAdapter.java:86)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348)
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340)
	at io.netty.channel.ChannelInboundHandlerAdapter.channelRead(ChannelInboundHandlerAdapter.java:86)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348)
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340)
	at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1434)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348)
	at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:965)
	at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:163)
	at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:648)
	at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:583)
	at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:500)
	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:462)
	at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:897)
	at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
	at java.lang.Thread.run(Thread.java:750)
Disconnected from the target VM, address: '127.0.0.1:51913', transport: 'socket'
 
Process finished with exit code 1

解决方法：

找到 redis 文件夹下的 redis.windows.conf 文件，添加修改 requirepass