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This article mainly shows you "CentOS 7.4 how to install redis 4.0", the content is easy to understand, clear, hope to help you solve your doubts, the following let the editor lead you to study and learn "CentOS 7.4 how to install redis 4.0" this article.

1. Redis single instance installation

1. Install the dependency package

[root@VM_2_13_centos redis] # yum install gcc*

2. Get the installation file

[root@VM_2_13_centos redis] # wget http://download.redis.io/releases/redis-4.0.9.tar.gz

3. Decompress the file

[root@VM_2_13_centos redis] # tar zxvf redis-4.0.9.tar.gz

[root@VM_2_13_centos redis] # ll

Total 1708

Drwxrwxr-x 6 root root 4096 Mar 27 00:04 redis-4.0.9

-rw-r--r-- 1 root root 1737022 Mar 27 00:04 redis-4.0.9.tar.gz

4. Compile and install

[root@VM_2_13_centos redis-4.0.9] # make

[root@VM_2_13_centos redis-4.0.9] # make PREFIX=/usr/local/redis install

Cd src & & make install

Make [1]: Entering directory `/ usr/local/redis/redis-4.0.9/src'

CC Makefile.dep

Make [1]: Leaving directory `/ usr/local/redis/redis-4.0.9/src'

Make [1]: Entering directory `/ usr/local/redis/redis-4.0.9/src'

Hint: It's a good idea to run 'make test';)

INSTALL install

INSTALL install

INSTALL install

INSTALL install

INSTALL install

5. Check the version of redis

[root@VM_2_13_centos] # redis-server-- version

Redis server vault 4.0.9 sha=00000000:0 malloc=jemalloc-4.0.3 bits=64 build=c97ec2b5e9b86914

6. Start redis

[root@VM_2_13_centos redis] # / usr/local/redis/bin/redis-server / etc/redis/redis.conf

[root@VM_2_13_centos redis] # netstat-tuplan | grep 6379

Tcp 0 0 127.0.0.1 6379 0.0.0.0 LISTEN 5305/redis-server 1

[root@VM_2_13_centos redis] # ps-ef | grep redis

Root 5305 1 0 21:38? 00:00:00 / usr/local/redis/bin/redis-server 127.0.0.1:6379

Root 5356 30807 0 21:39 pts/1 00:00:00 grep-color=auto redis

7. Log in through the client

[root@VM_2_13_centos ~] # redis-cli

127.0.0.1purl 6379 >

Note: if you want to uninstall redis, delete the redis in the / usr/local/redis/bin/ directory. To uninstall cleanly, you can also delete the unzipped and compiled redis packages and the configured redis.conf.

II. Security configuration

1. Set the password

The default installation of redis does not set a password and can be configured in redis.conf

[root@VM_2_13_centos ~] # vim / etc/redis/redis.conf

Requirepass qcloud@2018

Or configure through the command

127.0.0.1 purl 6379 > CONFIG set requirepass qcloud@2018

Because the performance of Redis is extremely high, and Redis does not actively delay after entering the wrong password (considering the single-threaded model of Redis), attackers can crack the password of Redis by exhaustive method (more than 100,000 passwords can be tried in 1 second). Therefore, complex passwords must be selected when setting up, which can be generated by random password generator.

Note: when configuring Redis replication, if the master database has a password set, you need to set the password of the master database through the masterauth parameter in the configuration file of the slave database, so that the slave database will automatically use the AUTH command to authenticate when connecting to the master database.

Verify whether the password is valid and whether authentication is required

[root@VM_2_13_centos ~] # redis-cli

127.0.0.1purl 6379 >

127.0.0.1 6379 > keys *

(error) NOAUTH Authentication required.

127.0.0.1purl 6379 >

127.0.0.1 purl 6379 > auth qcloud@2018

OK

127.0.0.1purl 6379 >

127.0.0.1 6379 > keys *

(empty list or set)

2. Disable high-risk commands

At present, this command can be used normally

127.0.0.1 purl 6379 > flushall

OK

Close redis, but because the password is set above, it must be verified successfully before it can be closed.

[root@VM_2_13_centos ~] # redis-cli shutdown

(error) NOAUTH Authentication required.

[root@VM_2_13_centos] # redis-cli-a qcloud@2018 shutdown

[root@VM_2_13_centos ~] #

[root@VM_2_13_centos ~] # ps-ef | grep redis

Root 6144 5406 0 21:54 pts/0 00:00:00 grep-color=auto redis

Modify the configuration file redis.conf by adding the following line:

[root@VM_2_13_centos ~] # vim / etc/redis/redis.conf

Rename-command FLUSHALL ""

Rename-command CONFIG ""

Rename-command EVAL ""

Restart redis

[root@VM_2_13_centos ~] # redis-server / etc/redis/redis.conf

[root@VM_2_13_centos ~] #

[root@VM_2_13_centos ~] # redis-cli

127.0.0.1purl 6379 >

127.0.0.1 6379 > keys *

(error) NOAUTH Authentication required.

127.0.0.1purl 6379 >

127.0.0.1 purl 6379 > auth qcloud@2018

OK

127.0.0.1purl 6379 >

127.0.0.1 purl 6379 > flushall

(error) ERR unknown command 'flushall'

127.0.0.1purl 6379 >

127.0.0.1 purl 6379 > config

(error) ERR unknown command 'config'

127.0.0.1purl 6379 >

127.0.0.1 purl 6379 > eval

(error) ERR unknown command 'eval'

Through the above error report, we can find that the three commands disabled in the configuration file cannot be used.

3. Binding can only be accessed locally

[root@VM_2_13_centos ~] # vim / etc/redis/redis.conf

Bind 127.0.0.1

4. Set redis to enable self-startup

[root@VM_2_13_centos ~] # vim / etc/rc.d/rc.local

/ usr/local/redis/bin/redis-server / etc/redis/redis.conf &

The above is all the contents of the article "how to install CentOS 7.4 and redis 4.0". Thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!

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