Could not connect to redis at 192.168.164.118:6379: connection rejected under Linux

In virtual machine version Centos7 Connect in the environment redis

[[email protected] ~]# redis-cli -h 127.0.0.1 -p 6379
127.0.0.1:6379> 

But use IP Connection error , The tips are as follows ：

[[email protected] ~]# redis-cli -h 192.168.133.136 -p 6379         
Could not connect to Redis at 192.168.133.136:6379: Connection refused
Could not connect to Redis at 192.168.133.136:6379: Connection refused
not connected

Check the configuration file and find ：
function Redis It is dangerous for computers to be directly exposed to binding to all interfaces , It will expose the instance of everyone on the Internet .
follow bind Instructions , This will force Redis Monitor only IPv4 Fallback interface address ( It means Redis Will be able to accept only connections from the same computer ).

terms of settlement ：
1、 stay redis The configuration file /etc/redis.conf Add local to IP Address

bind 127.0.0.1 192.168.133.136
1
2、 Comment out redis The configuration file /etc/redis.conf in bind Instructions

# bind 127.0.0.1

Connect redis

[[email protected] ~]# redis-cli -h 192.168.133.136 -p 6379
192.168.133.136:6379> 

Set up redis The remote access

First , You want to configure redis The remote access , It needs to be clear redis.conf The concept and function of the three configuration items in the configuration file ：

bind The function of configuration ： Used to specify the corresponding to the local network card that is allowed to access IP Address .

among 192.168.18.8 yes ens33 network address ,127.0.0.1 yes lo Return address .redis.conf The default is bind 127.0.0.1, Default redis Only local access is allowed .

protected-mode Pattern meaning ： A security layer , The purpose is to prevent redis Random access by the Internet . If protected-mode Mode on , When not bind given IP Address , And the access password is not set , Only local lo Return address 、unix Host name access .

requirepass： Access password . After setting , Connect redis You must use this password , Otherwise, you cannot set and view data .

Combined with the above three configuration items , We can implement the following schemes redis External access ：

1、 Not set up bind Parameters ( Comment out all bind That's ok ), close protected-mode Pattern , Do not set access password .

2、 Not set up bind Parameters ( Comment out all bind That's ok ), close protected-mode Pattern , Set access password .

3、 Not set up bind Parameters , Turn on protected-mode Pattern , Set access password .

4、 Set up bind Parameters , Turn on protected-mode Pattern , Do not set access password

5、 Set up bind Parameters , Turn on protected-mode Pattern , Set access password

  reason ： The server is not started ........

Violence solutions

# Get into redis The configuration directory

cd /opt/soft/redis6379/

# Start the server manually

 redis-server

# Open another window to run directly  

 redis-cli -h 192.168.64.138 -p 6379

Option two

# This machine ip Or change it to where the application service is located ip
bind 127.0.0.1
# The protection mode can be turned off by default
protected-mode no
#redis password
requirepass redispwd 

 

Successful connection ！！！