What is the difference between CentOS and Ubuntu?

There are differences between CentOS and Ubuntu, two different operating systems.

1. Based on different distributions, CentOS is an open-source version based on Red Hat Enterprise Linux (RHEL), while Ubuntu is an open-source version based on Debian.
2. CentOS utilizes Yum (Yellowdog Updater Modified) as its package manager, while Ubuntu uses APT (Advanced Package Tool).
3. The supported software package collections vary: due to being based on different distributions, CentOS and Ubuntu support different software packages. CentOS mainly focuses on server environments, providing stable and reliable packages, while Ubuntu caters more to desktop users and developers, offering the latest packages.
4. Different default desktop environments are used: CentOS defaults to GNOME desktop environment, while Ubuntu defaults to Unity desktop environment (in the latest version, it has been changed to GNOME desktop environment).
5. The release cycles differ: CentOS has a relatively longer release cycle, with each version being supported for 10 years, while Ubuntu has a shorter release cycle, with each version being supported for 5 years (with long-term support versions being supported for 10 years).
6. Community support varies: CentOS is maintained and supported by the community, while Ubuntu receives both commercial and community support from Canonical, a company specifically dedicated to providing support for Ubuntu.

Choosing the right operating system depends on specific needs and usage scenarios. For a stable and long-term server environment, CentOS is a suitable option; for the latest software packages and a better desktop experience, Ubuntu is a good choice.