Redis安装

最近在学redis+python,在centos7上装这两个应用,这篇分享redis安装,python安装会在python分类下分享。

参考博文地址:https://www.cnblogs.com/happywish/p/10944253.html   https://www.cnblogs.com/lauhp/p/8487029.html

安装:

1.获取redis资源

wget http://download.redis.io/releases/redis-4.0.8.tar.gz

 

2.解压

tar xzvf redis-4.0.8.tar.gz

  

3.安装

  4个命令一次执行

cd redis-4.0.8
make
cd src
make install PREFIX=/usr/local/redis

  

4.移动配置文件到安装目录下

  在redis安装目录下创建用于放置redis配置文件的etc目录

mkdir /usr/local/redis/etc

  将配置文件转到etc目录

mv redis.conf /usr/local/redis/etc

  

 5.配置redis为后台启动

vi /usr/local/redis/etc/redis.conf //将daemonize no 改成daemonize yes

  

6.将redis加入到开机启动

  vi /etc/rc.local //在里面添加内容:/usr/local/redis/bin/redis-server /usr/local/redis/etc/redis.conf (意思就是开机调用这段开启redis的命令)

 

7.开启redis服务

/usr/local/redis/bin/redis-server /usr/local/redis/etc/redis.conf 

 

8.将redis-cli,redis-server拷贝到bin下,让redis-cli指令可以在任意目录下直接使用

cp /usr/local/redis/bin/redis-server /usr/local/bin/              
cp /usr/local/redis/bin/redis-cli /usr/local/bin/     

 

9.启动redis服务

redis-server
[root@localhost ~]# redis-server
8762:C 05 Aug 21:39:30.352 # oO0OoO0OoO0Oo Redis is starting oO0OoO0OoO0Oo
8762:C 05 Aug 21:39:30.352 # Redis version=4.0.8, bits=64, commit=00000000, modified=0, pid=8762, just started
8762:C 05 Aug 21:39:30.352 # Warning: no config file specified, using the default config. In order to specify a config file use redis-server /path/to/redis.conf
8762:M 05 Aug 21:39:30.353 * Increased maximum number of open files to 10032 (it was originally set to 1024).
                _._                                                  
           _.-``__ ''-._                                             
      _.-``    `.  `_.  ''-._           Redis 4.0.8 (00000000/0) 64 bit
  .-`` .-```.  ```\/    _.,_ ''-._                                   
 (    '      ,       .-`  | `,    )     Running in standalone mode
 |`-._`-...-` __...-.``-._|'` _.-'|     Port: 6379
 |    `-._   `._    /     _.-'    |     PID: 8762
  `-._    `-._  `-./  _.-'    _.-'                                   
 |`-._`-._    `-.__.-'    _.-'_.-'|                                  
 |    `-._`-._        _.-'_.-'    |           http://redis.io        
  `-._    `-._`-.__.-'_.-'    _.-'                                   
 |`-._`-._    `-.__.-'    _.-'_.-'|                                  
 |    `-._`-._        _.-'_.-'    |                                  
  `-._    `-._`-.__.-'_.-'    _.-'                                   
      `-._    `-.__.-'    _.-'                                       
          `-._        _.-'                                           
              `-.__.-'                                               

8762:M 05 Aug 21:39:30.360 # WARNING: The TCP backlog setting of 511 cannot be enforced because /proc/sys/net/core/somaxconn is set to the lower value of 128.

 

10.使用python连接redis

[root@localhost ~]# python3
Python 3.6.8 (default, Apr  2 2020, 13:34:55) 
[GCC 4.8.5 20150623 (Red Hat 4.8.5-39)] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import redis
>>> conn = redis.Redis(host="127.0.0.1", port=6379, password="")
>>> conn.set('name', 'itxds')
True
>>> conn.get('name')
b'itxds'
>>> 

  

11.设置redis密码

  a.运行命令:

redis-cli

  

  b.查看现有的redis密码(第一次安装,没有密码)

127.0.0.1:6379> config get requirepass
1) "requirepass"
2) ""
127.0.0.1:6379> 

  c.设置密码

127.0.0.1:6379> config set requirepass '123456'
OK
127.0.0.1:6379> 

  d.测试连接

    重启redis服务重新连接,发现不能直接使用命令,系统需要验证密码

[root@localhost ~]# redis-cli -h 127.0.0.1 -p 6379
127.0.0.1:6379> set name itxds
(error) NOAUTH Authentication required.
127.0.0.1:6379> auth 123456
OK
127.0.0.1:6379> 

  

12.让外网能够访问redis

    a.配置防火墙: 开发6379端口

 firewall-cmd --zone=public --add-port=6379/tcp --permanent

    b.重启防火墙以使配置即时生效

systemctl restart firewalld

    c.查看系统所有开放的端口:

firewall-cmd --zone=public --list-ports

    b.此时 虽然防火墙开放了6379端口,但是外网还是无法访问的,因为redis监听的是127.0.0.1:6379,并不监听外网的请求。

      (一)把文件夹目录里的redis.conf配置文件里的bind 127.0.0.1前面加#注释掉

      (二)命令:redis-cli连接到redis后,通过 config get  daemonize和config get  protected-mode 是不是都为no,如果不是,就用config set 配置名 属性 改为no。

 

posted @ 2020-08-05 22:18  coder_xds  阅读(127)  评论(0编辑  收藏  举报