Sorted:

How to manage users and groups in FreeBSD?

What is Debian’s Testing branch?

How to update and upgrade the system in FreeBSD?

What file systems are supported by FreeBSD?

Which hardware architectures are supported by Debian?

What are the suitable applications for FreeBSD?

How to install a software package on a FreeBSD system?

How to configure a firewall in FreeBSD?

How to view system log files in FreeBSD.

What is the method for configuring parameters in a Hadoop cluster?