To backup and restore an XFS filesystem it's possible by installing xfsdump package which provides xfsdump and xfsrestore commands.
CentOS Linux 8 is completely free to use and licensed under GNU GPL, It provides all features available in RHEL 8 and support available from the community.
Cloud & Containerization
Kubernetes or k8s is trending Open Source container orchestration solution provides feature such as application deployment by automating, scaling etc.
Apt Cache Server available for Debian based Operating Systems and it helps to cache the packages installed with apt and saves a lot of bandwidth.
Thinly Provisioned Logical volume is one of the advanced feature available in Logical volume Management, We can provision storage more than what we have.
Linux Network Bridge is a device that separates two or more network segments within one logical network and behaves like an L2 Switch but really it's not.