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RDS CAL | Where Are They Used and Who Needs Them?

by Daniel Smith Cloud Consultant | Content Writer

Most organizations have some sort of database system or application running somewhere in their IT infrastructure. These databases store information about customers, employees, inventory, etc., and they often contain sensitive data. 

If you haven’t heard of RDS before, don’t worry – it’s a relatively new service from Red Hat that allows companies to manage multiple SQL servers at once. This means that each server can run its own instance of Microsoft SQL Server (MS SQLServer), MySQL, MariaDB, or PostgreSQL. 


An organization might choose to use RDS CAL because it offers high availability, scalability, and performance. In addition, it provides security features such as encryption, authentication, and access control. 


RDS is also very easy to set up and manage. You can configure the service using an intuitive web-based interface, which makes managing your instances much easier than if you had to do so manually. 


When you create a new instance, you first need to decide where you want to host it. There are three main options: AWS EC2, Azure Virtual Machines, and Google Compute Engine. Each option has different benefits and drawbacks. 

For example, Amazon Web Services (AWS) gives you complete flexibility, but it requires a lot of upfront investment. If you already have a large cloud infrastructure in place, then this may not be for you. 


On the other hand, Google Compute Engine is free to use, but isn’t nearly as flexible as AWS or Azure VMs. It’s great for smaller projects, though, since it doesn’t require any upfront costs. 

 

Once you’ve decided on where you want to host your RDS instance, you need to select a flavor. The flavors available are Standard, Premium, and Performance. 

Standard is the cheapest option, and includes all standard features. Premium adds additional features like support for Kerberos authentication, SSL certificates, and multi-AZ deployments. Finally, Performance lets you scale out your instances without paying extra. 


In addition to the flavor, you can add one or more storage options. For example, you could select Elastic Block Storage (EBS) volumes, SSD disks, or both. 

Finally, you can specify how many CPUs and memory units should go into your instance. By default, the service will provision resources based on your chosen flavor and storage options. 


The next step is to create your instance. To start, click Create Instance, and follow the prompts. When prompted, enter a name for your instance. Then, select the flavor, storage options, and number of CPU/memory units. 


After creating your instance, you can connect to it via SSH. To do so, enter ssh root@ip_address. Once connected, you can log in with the user root and password “rhel7”. 


Next, we’ll install the software required for the database. We’re going to use the RHEL 7 version of the yum package manager. Enter the following command to install the package: 


Now that you’ve installed everything, you need to prepare your databases. First, you need to enable them. Open the /etc/yum.conf file and make sure that the following line exists: 

enabled1 

Next, open the /var/lib/mysql/ibdata1 directory and change its permissions to 600 (read only). This ensures that no one else can modify the data files. 

To finish configuring MySQL, run the following commands: 

service mysqld restart 

chkconfig mysqld off 

systemctl stop mysql 

systemctl disable mysql 


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About Daniel Smith Freshman   Cloud Consultant | Content Writer

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Joined APSense since, August 3rd, 2022, From Bethel Park, PA, United States.

Created on Oct 10th 2022 04:47. Viewed 177 times.

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