Debian, Ubuntu and CentOS, which distribution has the lowest operation and maintenance cost?

First of all, CentOS, Ubuntu and Debian are the mainstream Linux distributions. If you stand on the server side, CentOS is the most widely used; Ubuntu is widely used in China; Debian won't use too many proportions.

Considering the operation and maintenance cost, I suggest you choose CentOS, which has the lowest operation and maintenance cost, mainly in the following aspects:

1, market share

Because CentOS is the closest enterprise operating system to RHEL and has rich package resources, CentOS has the highest market share in China, including images recommended by major cloud computing platforms.

2. System stability.

Ubuntu's biggest feature is frequent updates, and its kernel is newer than other distributions, but it also brings some problems, such as:

Too new kernel will lead to poor compatibility of some old versions of software, and many software and packages on Linux are very old;

Ubuntu updates frequently, but in fact, the server system pays attention to stability. Too frequent updates may lead to system instability.

CentOS is mainly stable, and the update frequency is not as high as Ubuntu. In addition, Ubuntu pays more attention to the desktop system, which is not practical on the server side.

3. Manpower

Most people master CentOS, while Ubuntu and Debian are more used as "early adopters". You can look at major recruitment websites. The requirement of Linux operation and maintenance is that CentOS must be able to do it, but Ubuntu and Debian do not.

4. Technical support

Behind CentOS is the red hat, while Ubuntu is maintained by the founder and the community, without the endorsement of big companies. In terms of strength, CentOS is the best of the three.

To sum up, from the perspective of operation and maintenance costs, CentOS is in the forefront in brand endorsement, stability and market share.