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What Is Centos Operating System

What Is Centos Operating System?

CentOS is a widely-used operating system (OS) that sees widespread deployment in a variety of settings, including commercial and personal web servers and personal computers. It’s an open-source platform built on the Red Hat Enterprise Linux (RHEL) distribution that’s free to use. In this post, we’ll examine CentOS in further detail to see what it is, what makes it special, and why so many people choose it.


CentOS, which stands for “Community Enterprise Operating System,” is a free and open-source Linux-based operating system. It is popular among organisations and individuals because it is dependable, stable, and secure.

History of CentOS

Lance Davis founded CentOS in 2004 as a community-driven initiative. It was created as a free alternative to RHEL, which required a paid licence. CentOS is based on RHEL’s source code, therefore it contains almost all of the same features and functionalities.

How does CentOS work?

Based on the Linux kernel, CentOS is a Unix-like OS. It is based on the free and publicly available RHEL code base. CentOS was built with RHEL compatibility in mind, therefore you can use RHEL packages with little to no adjustment on CentOS. Because of this interoperability, CentOS is just as secure, stable, and trustworthy as RHEL.

CentOS vs. Other Operating Systems

CentOS is frequently contrasted with Linux distributions like Ubuntu, Debian, and Fedora. CentOS is primarily distinguished from other OSes by the fact that it is founded on the RHEL distribution, while other OSes are not. The same packages, updates, and support are available for CentOS as they are for RHEL. There are other Linux distributions, but none that can compare to the reliability and security of CentOS.

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Advantages of CentOS

There are several advantages to using CentOS, including:

  • Stability: CentOS is known for its stability, which means that it is less likely to crash or experience issues.
  • Security: CentOS is highly secure, with regular security updates that are released to ensure the safety of the system.
  • Compatibility: CentOS is highly compatible with RHEL, which means that it can run RHEL packages without any modifications.
  • Free and open-source: CentOS is free to use and is open-source, which means that users can modify and distribute the code without any restrictions.
  • Large community support: CentOS has a large and active community of developers and users, which means that there is a wealth of resources available to users who need help or support.

Disadvantages of CentOS

While CentOS has many advantages, there are also some disadvantages, including:

  • Outdated packages: CentOS packages are often outdated compared to other Linux distributions.
  • Lack of support for new hardware: CentOS is not as quick to adopt new hardware support as other Linux distributions.
  • Limited desktop environment: CentOS does not offer as many desktop environment options as other Linux distributions.

CentOS Features

CentOS has several features that make it a popular choice among businesses and individuals, including:

  • Server-oriented: CentOS is designed to be a server-oriented operating system, which means that it is optimized for performance and reliability.
  • Long-term support: CentOS offers long-term support for its releases, with security and bug fixes provided for several years.
  • Package management: CentOS uses the yum package manager, which makes it easy to install and manage software packages.
  • CLI and GUI options: CentOS offers both a Command Line Interface (CLI) and a Graphical User Interface (GUI), providing users with flexibility and choice.
  • High customizability: CentOS is highly customizable, with a variety of options for system configuration and software installation.
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 Installing CentOS

Installing CentOS is a straightforward process, and there are several methods available, including:

  • DVD installation: Users can download the CentOS ISO file and burn it to a DVD to create a bootable installation disk.
  • USB installation: Users can create a bootable USB drive using the CentOS ISO file and a tool like Rufus or UNetbootin.
  • Network installation: Users can install CentOS over the network using the Preboot Execution Environment (PXE).

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Configuring CentOS

After installing CentOS, users can configure it to meet their specific needs. Some common configuration tasks include:

  • Setting up networking: Users can configure network settings, such as IP addresses and DNS servers.
  • Installing software: Users can use the yum package manager to install software packages and libraries.
  • Customizing the desktop environment: Users can customize the appearance and behavior of the desktop environment to suit their preferences.
  • Setting up security: Users can configure firewalls and other security settings to protect their system from attacks.

CentOS Applications

CentOS is widely used in various fields, including:

  • Web servers: Many websites and web applications run on CentOS, due to its stability and security.
  • Business applications: CentOS is a popular choice for running business applications, such as databases and ERP systems.
  • Home computing: CentOS is also used by individuals for home computing, particularly for tasks such as media center management and gaming.

CentOS Security

CentOS is highly secure, with regular security updates provided by the CentOS community. Users can further enhance the security of their CentOS system by:

  • Installing firewalls: CentOS includes several firewalls, such as iptables and firewalld, that can be used to restrict access to the system.
  • Enabling SELinux: SELinux is a mandatory access control mechanism that can be enabled in CentOS to provide an additional layer of security.
  • Updating regularly: Users should ensure that their CentOS system is up-to-date with the latest security patches and updates.
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CentOS and Cloud Computing

A lot of people like using CentOS in the cloud because of how secure it is and how well it works with RHEL. CentOS is a viable operating system for use with virtual machines and containers, and it has the backing of major cloud providers like Amazon Web Services and Google Cloud Platform.


CentOS is a robust and trustworthy OS that provides several advantages. CentOS is a versatile and adaptable choice that may be used for a broad variety of purposes, from home computing to web hosting and corporate applications. Users that place a premium on stability and security in their operating system will appreciate its long-term support, package management, command line interface (CLI) and graphical user interface (GUI) choices, and extensive configurability. CentOS is expected to continue to be a popular option for many years to come because to its compatibility with RHEL and its widespread use in cloud computing.


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