LinuxDistributions

Distributions are the mix of open-source software that different companies put together to get desirable configuration of operating system

RedHat distributions

The most popular family of software because companies are using it

• RHEL (RedHat Enterprise Lunix) -commercial distribution that provides companies with open-source OS with RedHat proprietary software and customer support.
• CentOS (Community enterprise open source) - free distribution without RedHat proprietary software and with no support
• Fedora - free OS that is using to test software for RHEL system. After all bugs are detected and fixed in Fedora OS software goes to RHEL and after it after some time - to CentOS

Ubuntu distributions

Based on Debian

• Ubuntu
• Mint

SUSE distributions

Develops enterprise systems

OEL distributions

System for enterprise by Oracle