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我可以更改 Redis 集群中正在运行的 Redis 实例上的 MASTERAUTH 值吗？

tag-icon • tag-icon security replication redis
我可以更改 Redis 集群中正在运行的 Redis 实例上的 MASTERAUTH 值吗？

根据http://redis.io/topics/security，我可以在 Redis 配置文件中设置一个requirepass值，例如。requirepass foobared

但是，我不希望我的配置文件中出现这个。

基本上，我想将此密码保留在.conf文件之外，并使用进行设置redis-cli。

################################## SECURITY ###################################

# Require clients to issue AUTH <PASSWORD> 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.
#
# This should stay commented out for backward compatibility and because most
# people do not need auth (e.g. they run their own servers).
#
# Warning: since Redis is pretty fast an outside user can try up to
# 150k passwords per second against a good box. This means that you should
# use a very strong password otherwise it will be very easy to break.
#
# 2015.12.14 nbasanes: Although I prefer enabling this, I'm not 
# sure it buys us much, since a clear password in a config 
# file is bad for security:
# requirepass foobared

# 2015.12.14  nbasanes: This could be interesting, although 
#   I don't put much weight in security-by-obscurity:
# Command renaming.
#
# It is possible to change the name of dangerous commands in a shared
# environment. For instance the CONFIG command may be renamed into something
# hard to guess so that it will still be available for internal-use tools
# but not available for general clients.
#
# Example:
#
# rename-command CONFIG b840fc02d524045429941cc15f59e41cb7be6c52
#
# It is also possible to completely kill a command by renaming it into
# an empty string:
#
# rename-command CONFIG ""
#
# Please note that changing the name of commands that are logged into the
# AOF file or transmitted to slaves may cause problems.

答案1

是的，可以在运行时更改身份验证。（请参阅 Nathan Basanese 的回答）。

此外，请确保触发 config rewrite 命令以使身份验证持久化。否则，如果 Redis 实例重新启动，身份验证可能会丢失

CONFIG REWRITE

您可以通过对 Redis 实例运行 CONFIG GET * 来获取可在运行时更改的所有参数的列表

  127.0.0.1:6379> CONFIG GET *
  1) "dbfilename"
  2) "dump.rdb"
  3) "requirepass"
  4) ""
  5) "masterauth"
  6) ""
  7) "unixsocket"
  8) ""

答案2

是的，您确实可以requirepass在实时 Redis 实例上设置该值。

此示例显示了我在 Redis 从属服务器上进行设置：

[nbasanes@SLAVEONE ~]$ redis-cli -h $(facter ipaddress)
101.222.222.222:6379> CONFIG SET REQUIREPASS FOOBARED
OK
101.222.222.222:6379> CONFIG SET REQUIREPA FOOBARED
(error) NOAUTH Authentication required.
101.222.222.222:6379> AUTH FOOBARED
OK
101.222.222.222:6379> CONFIG SET REQUIREPA FOOBARED
(error) ERR Unsupported CONFIG parameter: REQUIREPA
10.252.226.179:6379> ROLE
1) "slave"
2) "101.102.94.22"
3) (integer) 6379
4) "connected"
5) (integer) 702567
101.222.222.222:6379>

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