{"id":14444,"date":"2022-01-28T05:45:04","date_gmt":"2022-01-28T05:45:04","guid":{"rendered":"https:\/\/linuxways.net\/?p=14444"},"modified":"2022-01-28T05:45:04","modified_gmt":"2022-01-28T05:45:04","slug":"how-to-deploy-redis-on-rocky-linux-8","status":"publish","type":"post","link":"https:\/\/linuxways.net\/de\/red-hat\/how-to-deploy-redis-on-rocky-linux-8\/","title":{"rendered":"How to Deploy Redis on Rocky Linux 8"},"content":{"rendered":"

Redis<\/a> is a free, open-source, in-memory data structure store widely used as a database, cache, and message broker.<\/p>\n

In this tutorial, we will explore commands to install Redis on our machine. Not just that, we will also see how to configure it. Rocky Linux 8 is the operating system we have used in this guide.<\/p>\n

Let\u2019s go!<\/p>\n

Installation Guide:<\/h2>\n

Following these steps, we will install and configure Redis:<\/p>\n

Step 1: Install Redis<\/h3>\n

To install Redis, run this command:<\/p>\n

sudo dnf install redis<\/pre>\n
<\/p>\n
Step 2: Edit Redis Configuration file<\/h3>\n
Next, we will make some changes to the Redis configuration file.<\/p>\n
Open the file using the vim editor:<\/p>\n
sudo vim \/etc\/redis.conf<\/pre>\n
<\/p>\n
Locate supervised directive in the file. It will be written as:<\/p>\n
<\/p>\n
Change it to:<\/p>\n
<\/p>\n
Step 3: Start Redis<\/h3>\n
After saving changes, start Redis like this:<\/p>\n
sudo systemctl start redis<\/pre>\n
<\/p>\n
Step 4: Enable Redis<\/h3>\n
Similarly, we will enable Redis with this command:<\/p>\n
sudo systemctl enable redis<\/pre>\n
<\/p>\n
Step 5: Check Redis status<\/h3>\n
Now we will confirm if Redis service is running fine or not. Do that with this command:<\/p>\n
sudo systemctl status redis<\/pre>\n
<\/p>\n
Step 6: Test Redis Installation<\/h3>\n
In this step, we will test Redis by running the command mentioned below. If it returns with PONG, this means redis is working fine.<\/p>\n
$ sudo redis-cli ping<\/pre>\n
<\/p>\n
Protect Redis with the help of a Password<\/h2>\n
To secure the database, we will assign it a password to prevent unauthorized access.<\/p>\n
Step 1: Edit Redis configuration file<\/h3>\n
First of all, open the Redis configuration file again using this command:<\/p>\n
sudo vim \/etc\/redis.conf<\/pre>\n
<\/p>\n
Find the following directive in the file to uncomment it and assign your password:<\/p>\n
requirepass strong_password<\/pre>\n
<\/p>\n
Step 2: Restart Redis<\/h3>\n
To update changes, restart Redis.<\/p>\n
sudo systemctl restart redis<\/pre>\n
<\/p>\n
Step 3: Enter Redis-cli<\/h3>\n
Now, we will check if the password authentication is working fine or not. To do that, access Redis client with this command:<\/p>\n
redis-cli<\/pre>\n
<\/p>\n
Step 4: Set Key to a value<\/h3>\n
Now set a key to a value like this:<\/p>\n
set keystudent Tom<\/pre>\n
<\/p>\n
This will give an error, telling you that authentication is required to set the key.<\/p>\n
<\/p>\n
To get access, push your password with auth command like this:<\/p>\n
auth your_password<\/pre>\n
<\/p>\n
Once the password is accepted, you will be able to set a key to the value.<\/p>\n
Step 5: Retrieve the value<\/h3>\n
To retrieve the value you just assigned to the key, use the get command like this:<\/p>\n
get keystudent<\/pre>\n
<\/p>\n
Step 6: Exit Redis<\/h3>\n
To exit the database, just type quit and hit enter.<\/p>\n
Quit<\/pre>\n
<\/p>\n
Configure Redis for remote access<\/h2>\n
Here, we will see how to configure Redis to be accessed remotely from another machine.<\/p>\n
Step 1: Edit Redis configuration file<\/h3>\n
First of all, open the redis.conf file with this command:<\/p>\n
sudo nano \/etc\/redis.conf<\/pre>\n
<\/p>\n
Search for the bind directive, which is set to listen to localhost. Comment it:<\/p>\n
<\/p>\n
Next, give the remote server\u2019s ip address like this<\/p>\n
Bind private_ip<\/pre>\n
<\/p>\n
To grant access to Redis over the public internet, set the bind directive to 0.0.0.0.<\/p>\n
bind 0.0.0.0<\/pre>\n
<\/p>\n
Step 2: Disable protected mode<\/h3>\n
Now change protected mode yes to no as shown below:<\/p>\n
<\/p>\n
Save the changes and exit.<\/p>\n
Step 3: Restart Redis<\/h3>\n
Now, restart the database with this command to update changes in the Redis configuration file:<\/p>\n
sudo systemctl restart redis<\/pre>\n
<\/p>\n
Configure Firewall for Redis<\/h2>\n
In this part, we will configure the default firewall in Rocky Linux, namely firewalld, to allow Redis to listen on port 6379 which is its default port.<\/p>\n
Step 1: Allow Redis port 6379<\/h3>\n
Run the following command so that Redis can listen on its default port:<\/p>\n
sudo firewall-cmd --add-port=6379\/tcp --permanent<\/pre>\n
<\/p>\n
Step 2: Reload firewall<\/h3>\n
To update changes, reload the firewall with this command:<\/p>\n
sudo firewall-cmd --reload<\/pre>\n
<\/p>\n
Step 3: Test new settings<\/h3>\n
Now that we have configured the firewall for Redis, let\u2019s test if a remote machine can access Redis or not. Do that by running the following command from a remote machine:<\/p>\n
redis-cli -h server_IP<\/pre>\n
server_IP is the IP address of the machine on which Redis is deployed. In my case, it is 10.128.1.2.<\/p>\n
redis-cli -h 10.128.1.2<\/pre>\n
<\/p>\n
That was all for today. In this document, we saw in detail how to install and configure Redis on Rocky Linux 8.<\/p>\n
To see how you can install Redis on Ubuntu 20.04, visit:<\/p>\n
https:\/\/linuxways.net\/ubuntu\/how-to-install-and-configure-redis-in-ubuntu-20-04\/<\/a><\/p>","protected":false},"excerpt":{"rendered":"
Redis is a free, open-source, in-memory data structure store widely used as a database, cache, and message broker. In this tutorial, we will explore commands to install Redis…<\/p>","protected":false},"author":1,"featured_media":14534,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[165],"tags":[189,436],"class_list":["post-14444","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-red-hat","tag-redis","tag-rocky-linux-8"],"_links":{"self":[{"href":"https:\/\/linuxways.net\/de\/wp-json\/wp\/v2\/posts\/14444","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=14444"}],"version-history":[{"count":0,"href":"https:\/\/linuxways.net\/de\/wp-json\/wp\/v2\/posts\/14444\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/linuxways.net\/de\/wp-json\/wp\/v2\/media\/14534"}],"wp:attachment":[{"href":"https:\/\/linuxways.net\/de\/wp-json\/wp\/v2\/media?parent=14444"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/linuxways.net\/de\/wp-json\/wp\/v2\/categories?post=14444"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/linuxways.net\/de\/wp-json\/wp\/v2\/tags?post=14444"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}