What is the difference between Redhat and CentOS?

What is the difference between Redhat and CentOS?

The difference between Redhat and CentOS:

1. CentOS is a clone version of Redhat. It is a release version that compiles the source code of Redhat and then releases it;

2. CentOS is a free version and does not provide any services to users, while Redhat charges for some services.

The relationship between CentOS and RedHat

RedHat is released in two ways: binary release and source code method of issuance. 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 not actually 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 released after improving RedHat AS! Various operations and uses are no different from RedHat!

2. CentOS is completely It's free and does not require 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 fixed many BUGs of RedHat AS. !

5. CentOS version description:

• CentOS4.0 is equivalent to RedHat AS4

• CentOS4.1 is equivalent to RedHat AS4 U1

• CentOS4.2 is equivalent to RedHat AS4 U2

• CentOS4.3 is equivalent to RedHat AS4 U3

• CentOS4.4 is equivalent to RedHat AS4 U4

Recommended tutorial: "CentOS"

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