CentOS7 安装redis

• yum安装

  yum install redis -y
  

• 如出现以下错误

  Loaded plugins: fastestmirror, langpacks
  Loading mirror speeds from cached hostfile
   * base: mirrors.huaweicloud.com
   * extras: mirrors.huaweicloud.com
   * updates: mirrors.neusoft.edu.cn
  No package redis available.
  Error: Nothing to do
  

  需要安装epel-release

  root@localhost ~]# yum install epel-release -y
  Loaded plugins: fastestmirror, langpacks
  Loading mirror speeds from cached hostfile
   * base: mirrors.huaweicloud.com
   * extras: mirrors.huaweicloud.com
   * updates: mirrors.neusoft.edu.cn
  Resolving Dependencies
  --> Running transaction check
  ---> Package epel-release.noarch 0:7-11 will be installed
  --> Finished Dependency Resolution
  
  Dependencies Resolved
  
  =======================================================================================
   Package                  Arch               Version          Repository          Size
  =======================================================================================
  Installing:
   epel-release             noarch             7-11             extras              15 k
  
  Transaction Summary
  =======================================================================================
  Install  1 Package
  
  Total download size: 15 k
  Installed size: 24 k
  Is this ok [y/d/N]: y
  Downloading packages:
  warning: /var/cache/yum/x86_64/7/extras/packages/epel-release-7-11.noarch.rpm: Header V3 RSA/SHA256 Signature, key ID f4a80eb5: NOKEY
  Public key for epel-release-7-11.noarch.rpm is not installed
  epel-release-7-11.noarch.rpm                                    |  15 kB  00:00:00     
  Retrieving key from file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7
  Importing GPG key 0xF4A80EB5:
   Userid     : "CentOS-7 Key (CentOS 7 Official Signing Key) <security@centos.org>"
   Fingerprint: 6341 ab27 53d7 8a78 a7c2 7bb1 24c6 a8a7 f4a8 0eb5
   Package    : centos-release-7-2.1511.el7.centos.2.10.x86_64 (@anaconda)
   From       : /etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7
  Is this ok [y/N]: y
  Running transaction check
  Running transaction test
  Transaction test succeeded
  Running transaction
    Installing : epel-release-7-11.noarch                                            1/1 
    Verifying  : epel-release-7-11.noarch                                            1/1 
  
  Installed:
    epel-release.noarch 0:7-11                                                           
  
  Complete!
  

• 完成之后再重新装redis

• 启动

  systemctl start redis.service
  

• 关闭

  systemctl stop redis.service
  

• 查看状态

  systemctl status redis.service
  

• 开机自启动

  systemctl enable redis
  

• 开放端口和重启防火墙(如防火墙已关闭请忽略)

  [root@localhost ~]# firewall-cmd --zone=public --add-port=80/tcp --permanent
  success
  [root@localhost ~]# firewall-cmd --zone=public --add-port=6379/tcp --permanent
  success
  [root@localhost ~]# systemctl restart firewalld
  

• 配置redis.conf

  cd /etc 目录下
  vi redis.conf
  
  #bind 127.0.0.1        # 这里要注释掉，否则只有本机能访问
  protected-mode no   # 这里由yes改为no
  requirepass 123456  # 这里设置上密码
  

  重启redis服务
  systemctl restart redis.service
  

  然后用Redis-cli去探探：

  [root@localhost etc]# redis-cli -h 127.0.0.1 -p 6379
  127.0.0.1:6379> info
  NOAUTH Authentication required.
  127.0.0.1:6379> auth 123456
  OK
  127.0.0.1:6379> info
  # Server
  ...