Are centos and redhat the same?

centos and redhat are different; CentOS is recompiled and released by Red Hat. CentOS is completely free and does not provide any value-added or charged items in the system. CentOS can use the yum command to support online upgrades and Update your system without paying for support.

The operating environment of this article: centos 6.4 system, Dell G3 computer.

Are centos and redhat the same?

CentOS is the abbreviation of Community ENTerprise Operating System. Many of us call it community enterprise operating system. No matter how you call it, it is a Linux operation. A release version of the system.

CentOS is not a brand new Linux distribution. When it comes to the name Red Hat, everyone seems to have heard of it. There is an enterprise version of the product in the Red Hat family, which is Red Hat Enterprise Linux (hereinafter referred to as RHEL), and CentOS is a clone version of this RHEL. RHEL is a Linux distribution used by many enterprises. You need to pay Red Hat to use it, and you can get paid services, technical support and version upgrades. CentOS can build a Linux system environment like RHEL, but it does not need to pay any product and service fees to Red Hat, and it does not receive any paid technical support and upgrade services.

Among the products of Red Hat Company, there are Red Hat Linux (such as Redhat8,9) and the version released for enterprises, Red Hat Enterprise Linux, which can be obtained and used for free through network FTP. However, in 2003 At that time, Red Hat Linux stopped releasing, and its project was replaced by the Fedora Project, which was released under the name Fedora Core and provided to ordinary users for free use. Fedora Core is a Linux distribution that updates very quickly, with new versions released in about half a year. The current version is Fedora Core 6. This Fedora Core experiment has a strong flavor. New features are added to each release, and the successful results will be adopted in RHEL releases. Even so, unstable products that are frequently improved and updated are not the best choice for enterprises. Most enterprises will still choose paid RHEL products (this has deep implications. For example, if enterprises use Linux to make money, they will The money received is returned to the enterprise, and the funds are circulated among enterprises, returning to society, improving service standards, etc.).

When RedHat is released, there are two ways: binary release and source code release. Regardless of the distribution method, you can obtain it for free (for example, download it from the Internet) and publish it again. But if you use their online upgrades (including patches) or consulting services, you must pay.

RedHat has always provided source code distribution. CentOS recompiles the source code released by RedHat to form a usable binary version. Since the source code of Linux is GNU, it is legal to obtain the source code of RedHat and compile it into a new binary. It’s just that RedHat is a trademark, so the RedHat trademark must be removed from the new release.

RedHat’s attitude towards this kind of distribution is: “We are actually not opposed to this kind of distribution. The users who really pay us do not value the system itself, but the commercial services we provide. ." So, CentOS can get all the features of RedHat, even better software. However, CentOS does not provide commercial support to users, and of course it does not bear any commercial responsibility.

If you want to move your RedHat to CentOS, because you don’t want to pay for RedHat upgrades. Of course, you must have extensive experience using UNIX, so RedHat's commercial technical support is not important to you. But if you are a purely business-oriented enterprise, it is still recommended that you purchase RedHat software and purchase corresponding services. This can save you IT management costs and get professional services.

In a word, choosing CentOS or RedHat depends on whether your company has the corresponding technical strength.

1. CentOS can be understood as the RedHat AS series! It is completely improved and released after RedHat AS! There is no difference between various operations and uses with RedHat!

2. CentOS is completely It's free, and there is no need for a serial number like the RedHat AS series.

　3. CentOS’s unique yum command supports online upgrades, which can update the system instantly. Unlike RedHat, which requires spending money to purchase support services!

　4. CentOS has corrected many BUGs of RedHat AS !

Recommended tutorial: "centos tutorial"

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