AWS S3视频转码

阿里云Oss转码配置

# 说明
  当前使用 Centos7中的yum 快速搭建Redis
# 步骤
1. 执行 `yum search redis` 查找源
2. 执行 `yum -y install redis` 安装redis
3. 执行 `rpm -ql redis` 查找redis安装位置并更改 ` /etc/redis.conf ` 配置文件
4. 执行 ` systemctl enable redis ` 设置开机启动
5. 执行` systemctl start redis ` 启动Redis并执行 ` systemctl status redis ` 检查Redis状态
6. 执行` firewall-cmd --permanent --add-port=6379/tcp ` 端口加入防火墙
7. 使用RDM工具连接测试或者进入redis程序目录查看状态





# 详细步骤

> 1、查找当前配置的yum源有哪些redis包 ` yum search redis `

  - 笔者当前使用的阿里的yum源，搜索结果如下，可以看到有个` redis.x86_64`的包
  - 更换当前系统yum可查看教程[点击查看](/archives/45/ "点击查看")
  
  
```
[root@localhost system]# yum search redis
已加载插件：fastestmirror
Loading mirror speeds from cached hostfile
 * base: mirrors.aliyun.com
 * epel: mirrors.yun-idc.com
 * extras: mirrors.aliyun.com
 * updates: mirrors.aliyun.com
================================================= N/S matched: redis =================================================
collectd-redis.x86_64 : Redis plugin for collectd
...
redis.x86_64 : A persistent key-value database

  名称和简介匹配 only，使用“search all”试试。

```

> 2、安装Redis ` yum -y install redis `

```
[root@localhost system]# yum -y install redis
已加载插件：fastestmirror
Loading mirror speeds from cached hostfile
 * base: mirrors.aliyun.com
 * epel: mirrors.yun-idc.com
 * extras: mirrors.aliyun.com
 * updates: mirrors.aliyun.com
正在解决依赖关系
...

总下载量：544 k
安装大小：1.4 M
Downloading packages:
redis-3.2.12-2.el7.x86_64.rpm                                                                  | 544 kB  00:00:00     
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
  正在安装    : redis-3.2.12-2.el7.x86_64                                                                         1/1 
  验证中      : redis-3.2.12-2.el7.x86_64                                                                         1/1 

已安装:
  redis.x86_64 0:3.2.12-2.el7                                                                                         

完毕！

```

> 3、看看Redis安装到了哪些目录以及配置文件所在目录 ` rpm -ql redis `
  
 - ` redis.conf ` 重点关注这个文件所在位置
 - ` vim  /etc/redis.conf` 编辑文件
 - 修改以下几个位置
	- ` bind 127.0.0.1 改为 bind 0.0.0.0  ` 监听本机所有端口
	- ` daemonize no 改为 daemonize yes ` 开启守护进程 
	- ` requirepass foobared  改为  requirepass 你的密码` 修改密码
 - 修改完成后保存文件。
 
```
[root@localhost system]# rpm -ql redis
/etc/logrotate.d/redis
/etc/redis-sentinel.conf
/etc/redis.conf
/etc/systemd/system/redis-sentinel.service.d
/etc/systemd/system/redis-sentinel.service.d/limit.conf
/etc/systemd/system/redis.service.d
/etc/systemd/system/redis.service.d/limit.conf
/usr/bin/redis-benchmark
/usr/bin/redis-check-aof
/usr/bin/redis-check-rdb
/usr/bin/redis-cli
/usr/bin/redis-sentinel
/usr/bin/redis-server
...

```

> 4、设置开机启动

- ` systemctl enable redis ` 开启默认开机启动

```
[root@localhost system]# systemctl enable redis
Created symlink from /etc/systemd/system/multi-user.target.wants/redis.service to /usr/lib/systemd/system/redis.service.

```

- 如需要关闭开机启动，可执行这个 ` systemctl disable redis `

```
[root@localhost system]# systemctl disable redis
Removed symlink /etc/systemd/system/multi-user.target.wants/redis.service.

```

> 5、启动并检查状态 ` systemctl start redis `、 ` systemctl status redis `

- 看到绿色的 `Active: active (running) `表示启动成功

```
[root@localhost system]# systemctl start redis
[root@localhost system]# systemctl status redis
● redis.service - Redis persistent key-value database
   Loaded: loaded (/usr/lib/systemd/system/redis.service; enabled; vendor preset: disabled)
  Drop-In: /etc/systemd/system/redis.service.d
           └─limit.conf
   Active: active (running) since 六 2020-05-30 22:30:11 CST; 6s ago
 Main PID: 2566 (redis-server)
   CGroup: /system.slice/redis.service
           └─2566 /usr/bin/redis-server 0.0.0.0:6379

...

```

> 6、若服务器开了防火墙记得把6379端口加入防火墙，没有可跳过此步骤。

- 查询是否开启防火墙 ` systemctl status firewalld `
- 查询端口是否存在 ` firewall-cmd --query-port=6379/tcp `
- 放开6379端口 ` firewall-cmd --permanent --add-port=6379/tcp `
- 重启防火墙 ` firewall-cmd --reload `

```
[root@localhost system]# systemctl status firewalld
● firewalld.service - firewalld - dynamic firewall daemon
   Loaded: loaded (/usr/lib/systemd/system/firewalld.service; enabled; vendor preset: enabled)
   Active: active (running) since 六 2020-05-30 17:30:14 CST; 5h 4min ago
     Docs: man:firewalld(1)
 Main PID: 707 (firewalld)
   CGroup: /system.slice/firewalld.service
           └─707 /usr/bin/python -Es /usr/sbin/firewalld --nofork --nopid

...

[root@localhost system]# firewall-cmd --query-port=6379/tcp
no
[root@localhost system]# firewall-cmd --permanent --add-port=6379/tcp
success
[root@localhost system]# firewall-cmd --reload
success
```

> 7、工具连接测试

- 命令行测试

	- ` ss -nlp | grep redis ` 查询Redis监听端口
	- 进入redis安装目录测试 ` cd /usr/bin/ ` 目录执行以下操作验证，auth后面跟着你设置的密码

```
[root@localhost system]# ss -nlp | grep redis
tcp    LISTEN     0      128       *:6379                  *:*                   users:(("redis-server",pid=2566,fd=4))
[root@localhost system]# cd /usr/bin/
[root@localhost bin]# redis-cli 
127.0.0.1:6379> auth 1234567890
OK
127.0.0.1:6379> get keys
(nil)
127.0.0.1:6379> set 111 test
OK
127.0.0.1:6379> 

```


- 工具测试
![](https://www.hcc11.cn/static/img/2020/05/2829053994.png)

# 参考

[CentOS7 linux下yum安装redis以及使用](https://www.cnblogs.com/rslai/p/8249812.html "CentOS7 linux下yum安装redis以及使用")