{"id":9469,"date":"2021-08-23T14:34:48","date_gmt":"2021-08-23T14:34:48","guid":{"rendered":"https:\/\/linuxways.net\/?p=9469"},"modified":"2021-08-23T14:34:48","modified_gmt":"2021-08-23T14:34:48","slug":"how-to-install-and-configure-redis-on-centos-8","status":"publish","type":"post","link":"https:\/\/linuxways.net\/de\/ubuntu\/how-to-install-and-configure-redis-on-centos-8\/","title":{"rendered":"How to Install and Configure Redis on CentOS 8"},"content":{"rendered":"

Redis is an in-memory data structure store. It is an open-source application that can be used as a Memcached alternative to store key-value pairs, means sets of two linked items, as a database NoSQL, message broker, and supports different data structures such as Hashes, Lists, Sets, Strings, and more.<\/p>\n

We will provide you in this article the complete installation and configuration details of Redis on the CentOS 8 Linux system.<\/p>\n

Prerequisites<\/strong><\/h2>\n

Log in as administrator or with root privileges on CentOS 8 to install Redis.<\/p>\n

Installation of Redis on CentOS 8<\/strong><\/h2>\n

Redis can install on CentOS 8 system into the following steps:<\/p>\n

Step 1: Install Redis using CentOS 8 repository<\/strong><\/h3>\n

First, login into the system and open the command line application \u2018Terminal\u2019 from the left sidebar of your CentOS 8 desktop. Now, update the system packages and CentOS 8 repositories by executing the below-mentioned command:<\/p>\n

$ sudo dnf update<\/pre>\n
$ sudo dnf install redis<\/pre>\n
<\/p>\n
Step 2: Verify Redis installation<\/strong><\/h3>\n
Once the installation of Redis is finished, check Redis installation details by using the below-mentioned terminal command:<\/p>\n
$ rpm -qi redis<\/pre>\n
<\/p>\n
Step 3: Enable Redis service\u00a0<\/strong><\/h3>\n
In this step, enable and then start the Redis service on CentOS 8 by using the following commands:<\/p>\n
$ sudo systemctl enable redis<\/pre>\n
<\/p>\n
$ sudo systemctl start redis<\/pre>\n
Verify the running status of Redis service by executing the below-mentioned command:<\/p>\n
$ sudo systemctl status redis<\/pre>\n
<\/p>\n
By default, port 6379 is used by Redis. Using the netstat command, you can easily confirm the port as follows:<\/p>\n
$ sudo netstat -pnltu | grep redis<\/pre>\n
<\/p>\n
Step 4: Redis Configuration for remote access<\/strong><\/h3>\n
By default, Redis only allows the Redis server to localhost (127.0.0.1) connection means on which the Redis is running. Redis does not allow remote connections. If a user uses a single server where the client\u2019s database is also running on the same host then, in this case, the user cannot access the remote connection.\u00a0<\/strong><\/p>\n
However, using the Redis configuration file, users can access the remote connection. Open the configuration file of Redis by running the below-given command:<\/p>\n
$ sudo nano \/etc\/redis.conf<\/pre>\n
Now, find the bind parameter in the configuration file and add your private server IP address with 127.0.0.1 as follows:<\/p>\n
<\/p>\n
Save the above configuration and close this file.<\/p>\n
Restart Redis by executing the following command:<\/p>\n
$ sudo systemctl restart redis<\/pre>\n
By using the \u2018ss\u2019 command, you can easily check if Redis is either listening on port 6379 or not.<\/p>\n
$ ss -an | grep 6379<\/pre>\n
<\/p>\n
To check the Redis is working correctly, send the ping Redis with the following command:<\/p>\n
$ redis-cli<\/pre>\n
<\/p>\n
Step 5: Allow Firewall Access<\/strong><\/h3>\n
Configure the firewall on your CentOS 8 system to allow access to the remote connections. First, add the new Redis zone by running the below-mentioned command:<\/p>\n
$ sudo firewall-cmd --permanent --new-zone=redis<\/pre>\n
<\/p>\n
Add the port number \u20186379\u2019 by using the following command:<\/p>\n
$ sudo firewall-cmd --permanent --zone=redis --add-port=6379\/tcp<\/pre>\n
<\/p>\n
Enable firewall access to the private IP by running the below-mentioned command:<\/p>\n
$ sudo firewall-cmd --permanent --zone=redis --add-source=private-IP-address<\/pre>\n
<\/p>\n
Finally, at the end reload the firewall by executing the below-mentioned command:<\/p>\n
$ sudo firewall-cmd --reload<\/pre>\n
<\/p>\n
Remove or uninstall Redis from CentOS 8<\/strong><\/h2>\n
After using Redis, you can easily uninstall it to make some free space in your system. Use the following command to remove Redis from CentOS 8:<\/p>\n
$ sudo dnf remove redis<\/pre>\n
<\/p>\n
Conclusion<\/strong><\/h2>\n
We have provided in this tutorial the complete installation description of Redis on the CentOS 8 system. Furthermore, we have also described how to configure Redis for remote connections. In the end, we have explained in this article how a user can remove Redis from CentOS 8 using just a single command. Feel free to share thoughts via comments.<\/p>","protected":false},"excerpt":{"rendered":"
Redis is an in-memory data structure store. It is an open-source application that can be used as a Memcached alternative to store key-value pairs, means sets of two…<\/p>","protected":false},"author":1,"featured_media":9600,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[93,189],"class_list":["post-9469","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ubuntu","tag-centos-8","tag-redis"],"_links":{"self":[{"href":"https:\/\/linuxways.net\/de\/wp-json\/wp\/v2\/posts\/9469","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/linuxways.net\/de\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/linuxways.net\/de\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/linuxways.net\/de\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/linuxways.net\/de\/wp-json\/wp\/v2\/comments?post=9469"}],"version-history":[{"count":0,"href":"https:\/\/linuxways.net\/de\/wp-json\/wp\/v2\/posts\/9469\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/linuxways.net\/de\/wp-json\/wp\/v2\/media\/9600"}],"wp:attachment":[{"href":"https:\/\/linuxways.net\/de\/wp-json\/wp\/v2\/media?parent=9469"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/linuxways.net\/de\/wp-json\/wp\/v2\/categories?post=9469"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/linuxways.net\/de\/wp-json\/wp\/v2\/tags?post=9469"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}