连redis 连不上怎么办！
网上很多，你应该已经查了一溜够了！我这里只强调config 配置文件！
而配置里，两个配置起决定性作用，bind属性和protected-mode属性（protected-mode有没有是要看版本，老版本没有的）。我为什么把注释都放进来呢，因为人家已经写得很清楚了，好好看！
################################## NETWORK ##################################### # By default, if no "bind" configuration directive is specified, Redis listens # for connections from all the network interfaces available on the server. # It is possible to listen to just one or multiple selected interfaces using # the "bind" configuration directive, followed by one or more IP addresses. # # Examples: # # bind 192.168.1.100 10.0.0.1 # bind 127.0.0.1 ::1 # # ~~~ WARNING ~~~ If the computer running Redis is directly exposed to the # internet, binding to all the interfaces is dangerous and will expose the # instance to everybody on the internet. So by default we uncomment the # following bind directive, that will force Redis to listen only into # the IPv4 lookback interface address (this means Redis will be able to # accept connections only from clients running into the same computer it # is running). # # IF YOU ARE SURE YOU WANT YOUR INSTANCE TO LISTEN TO ALL THE INTERFACES # JUST COMMENT THE FOLLOWING LINE. # ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ bind 127.0.0.1
# Protected mode is a layer of security protection, in order to avoid that # Redis instances left open on the internet are accessed and exploited. # # When protected mode is on and if: # # 1) The server is not binding explicitly to a set of addresses using the # "bind" directive. # 2) No password is configured. # # The server only accepts connections from clients connecting from the # IPv4 and IPv6 loopback addresses 127.0.0.1 and ::1, and from Unix domain # sockets. # # By default protected mode is enabled. You should disable it only if # you are sure you want clients from other hosts to connect to Redis # even if no authentication is configured, nor a specific set of interfaces # are explicitly listed using the "bind" directive. protected-mode yes
如果链接不上，我看很多都让把 protected-mode 修改为 no 并且 将 bind属性注释掉 （老版本只注释掉bind），但是，这样，不就谁都可以链接redis数据库了？那就不安全了啊
所以，protected-mode属性根本不用改，bind属性不要注释，只需要在bind 后添加你想要链接此数据库的地址就好了 如：
bind 192.168.1.100 10.0.0.1 就代表192.168.1.100和10.0.0.1是可以链接到数据库的，人家写的很清楚了！而且这也是安全并被推荐使用的！
下面说一下windows 下启动redis服务的问题！
如下图，是windows安装完的文件
通常，我们会双击redis-server.exe启动服务，但是默认服务使用的并不是这里的conf配置文件，如图：
这个/path/to/redis.conf才是redis-server.exe启动时指定的redis.conf配置,理论上我们修改这个redis.conf里的属性，重新启动服务也行，然而，我并没找到这个redis.conf
所以我修改了redis.windows-service.conf 配置（当然你可以修改redis.windows.conf我认为也没问题），并指定修改好的配置文件 如：
这时候再启动redis-cli.exe 运行命令：config get * 查看一下你的conf配置就ok了
至于linux下，如果链接不上redis也是这个思路：修改下配置文件，然后指定配置文件重新启动服务就好了！
redis-cli -h 127.0.0.1 -p 6379 shutdown
2.登录redis：redis-cli -h 127.0.0.1 -p 6379
3.查看所有key值：keys *
4.删除指定索引的值：del key
5.清空整个 Redis 服务器的数据：flushall
6.清空当前库中的所有 key：flushdb
查询redis
ps aux|grep redis
关闭redis服务
redis-cli shutdown
指定conf启动redis-server
redis-server etc/redis/redis.conf
