取Redis端口只能读取 加以限制(redis端口只能读)
取Redis端口只能读取:加以限制
Redis是一款高性能的key-value缓存或存储系统,常用于实现缓存和分布式锁等功能。随着Redis的广泛应用,我们需要加强其安全性以避免恶意攻击或误操作。其中之一就是对Redis端口进行限制,仅允许读取操作,本文将介绍如何实现这一功能。
实现步骤:
1. 启用Redis访问控制
Redis默认情况下没有启用访问控制,任何人都可以通过端口连接到Redis。为了增加安全性,我们需要通过设置密码或者只允许特定的IP地址来限制对Redis的访问。在Redis配置文件redis.conf中,找到如下配置项:
# Require clients to issue AUTH before processing any other
# commands. This might be useful in environments in which you do not trust
# others with access to the host running redis-server.
requirepass foobared
将requirepass后的密码修改为自己的密码即可实现密码访问控制。为了仅允许特定的IP访问,我们可以将如下配置项中的IP修改为自己允许的IP:
# By default, Redis listens for connections from all network interfaces
# If you want to listen to only one or a few network interfaces, not all the
# interfaces your machine has, specify one or more interface names or
# addresses separated by commas, and optionally a port number after a colon
bind 127.0.0.1
2. 修改Redis授权
在Redis客户端中,我们可以修改Redis授权,即通过修改选项配置从而限制客户端访问的Redis命令。在Python中,我们可以使用redis.StrictRedis实现对Redis的连接和操作。在访问Redis之前,我们需要进行身份验证(即密码验证)来避免未经授权的访问。示例代码如下:
import redis
r = redis.StrictRedis(host=’localhost’, port=6379, db=0, password=’foobared’)
r.config_set(‘requirepass’, ‘newpassword’)
3. 限制Redis端口只能读取
我们可以通过修改Redis配置文件,将所有写入操作禁止掉。将如下配置项从yes修改为no即可实现只允许读取操作:
# By default Redis does not allow running arbitrary commands on its
# dataset via the keyspace notifications. It is important you understand
# the implications of such feature before enabling it. To enable it
# just uncomment the following lines.
#
# Note that when you enable this feature Redis will dump the whole data set
# on disk every time an AOF or RDB persistence starts, and will process the
# dump file loading it back into memory, so the startup time of a Redis
# instance may vary from O(N) to O(N squared) depending on the size of the
# dataset.
#
# notify-keyspace-events “”
notify-keyspace-events KEA
重新启动Redis服务即可生效。
通过上述步骤,我们就可以实现对Redis端口的限制,仅允许读取操作,从而增加Redis的安全性。