# Redis

### 环境

Ubuntu 18.04



### 安装redis

```shell
apt-get install redis-server
```

### 修改密码

```shell
vi /etc/redis/redis.conf
# requirepass 你的密码
```

### 限制外网访问

```shell
vi /etc/redis/redis.conf
# bind 127.0.0.1 ::1
```

### 卸载

```shell
apt-get purge --auto-remove redis-server
```

### 修改dump.rdb文件存储路径

```properties
# 修改 /etc/redis/redis.conf
dir /data/bin/redis/data
# 修改 /etc/systemd/system/redis.service，添加以下文本
ReadWriteDirectories=-/data/bin/redis/data

```

###### 注：之前只修改了 `/etc/redis/redis.conf` 下的配置，而没有修改 `/etc/systemd/system/redis.service` ，所以一直报如下错误

```properties
2397:M 17 Sep 17:06:13.910 # Failed opening the RDB file dump.rdb (in server root dir /data/bin/redis/data) for saving: Read-only file system
```