Resolve Redis remote access and password issues

Redis enables remote access and password, as shown below:

1. Enable remote access

1. Open ports

firewall-cmd --zone=public --add-port=6379
firewall-cmd --zone=public --add-port=6379 --permanent

2. View the open port

firewall-cmd --list-port

3. Modify the configuration file

vim redis.conf

Comment bind 127.0.0.1 or change to bind 0.0.0.0

will protected-mode yes  Instead of protected-mode no;

2. Set a password

find # requirepass foobared Remove the comments and change foobared to your desired password, such as requirepass 123456

And then you can restart it

systemctl restart redis

ps: Redis startup error resolution

An error

redis_6379.service - LSB: start and stop redis_6379
Loaded: loaded (/etc/rc.d/init.d/redis_6379; bad; vendor preset: disabled)
Active: active (exited) since Wed 2019-09-18 15:40:08 CST; 7s ago
Docs: man:systemd-sysv-generator(8)
Process: 22652 ExecStop=/etc/rc.d/init.d/redis_6379 stop (code=exited, status=0/SUCCESS)
Process: 22692 ExecStart=/etc/rc.d/init.d/redis_6379 start (code=exited, status=0/SUCCESS)

Sep 18 15:40:08 ythzcpt-csmh systemd[1]: Starting LSB: start and stop redis_6379...
Sep 18 15:40:08 ythzcpt-csmh redis_6379[22692]: /var/run/redis_6379.pid exists, process is already running or crashed
Sep 18 15:40:08 ythzcpt-csmh systemd[1]: Started LSB: start and stop redis_6379.

> Delete the pid file

 cd /var/run
 mv redis_6379.pid redis_6379.pid_bak

> Delete the ES72en.rdb (memory snapshot) file

 cd /var/lib/redis/6379
 mv dump.rdb dump.rdb_bak

> Then check to see if the redis service is still started

 ps -ef |grep redis
 kill -9 

> And then you can restart it

conclusion