What is the difference between Redhat and centOS?

If you are a system administrator, you may get questioned sometime that what is the difference between Centos and RHEL. Both of the OS are Linux distributions and look similar but both are different. In this tutorial, we have mentioned what is the actual difference between Centos and RHEL. 

RHEL

Redhat is a paid one and a corporate version. It has slower releases and Redhat provides supports. It is a stable and proven product for enterprise customers as per their requirements as it offers customization options. RHEL is suitable and deployed for most business-critical services.

Source-code for the RHEL is easily available but they have put restrictions on their officially supported versions of RHEL. Before you use or deploy RHEL as a client OS or a server, it is required to purchase from RHEL and needs to be renewed annually.

RHEL 7 uses the XFS file system and RPM for the packaging system. You can use Yum or DNF for the package management. 

RHEL subscriptions pricing without any support starts from $349 per annum. If you are looking for one year of standard support with your RHEL package, it will cost you $799 per annum. For Premium support, it will cost you $1,299 per year. RHEL has the version likes of RHEL 6, 7, and 8. RHEL 8 is the latest one that they have released.

Centos

CentOS released in 2004 is a free, alternative, and community version of Redhat. Support can be available through community forums. Centos is built from the RHEL source code from RHEL so you will get the same identical performance. CentOS is a stable OS. Since there is no official support available for CentOS, it is less suitable for business-critical services. 

It offers customization options like RHEL so you can modify the settings for the various interface through the Gnome tweak tool

CentOS 7 was released in 2009 and CentOS 8 is the latest version that they have offered. You can download RPM packages for CentOS directly from this link. It uses the XFS file system and RPM for the packaging system. You can use Yum or DNF for the package management.

Most of the Webhosting companies including Accuwebhosting offer CentOS for the Webhosting purpose to their client. It is popular amongst the user as it is free. 

The below table will be more useful for the differentiation between RHEL and Centos. 

RHEL CentOS
Client needs to get an End-user license agreement (EULA) to use the commercial version.  It is available through the general public license (GPL) as it free of cost.
RHEL offers security features like SELinux, NSS, LinuxPAM and Firewalld You can get the same features as SELinux, NSS, LinuxPAM and Firewalld, etc on CentOS.
Users can use YUM for package management. Users can use YUM for package management.
RHEL can be installed via ISO. CentOS can be installed via ISO or Live CD.
Red Hat cluster suite (RHCS) is used for clustering. Linux-HA is used for clustering. 
GRUB 2 is used for the bootloader. GRUB 2 is used for the bootloader.
LVM/SSM is used for storage management.  LVM/SSM is used for storage management. 
OpenShift is used for the containerization. Docker and Kubernetes used for the containerization.

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