FuryBSD

vs

Rocky Linux

HardenedBSD is a security-enhanced fork of FreeBSD. The HardenedBSD Project is implementing many exploit mitigation and security technologies on top of FreeBSD. Allowing penetration testers and system security experts to enjoy a prebuilt suite of tools on top of FreeBSD.

MidnightBSD is a free and open-source desktop operating system for x86 and x86-64 based PCs. The OS is originally forked from FreeBSD 6.1, and periodically updated with code and drivers from later FreeBSD releases. The developers behind MidnightBSD has been stringing since 2006 create an easy-to-use operating system that everyone can use, freely. 

OpenBSD is a free and open-source, security-focused, Unix-like operating system based on the Berkeley Software Distribution. For over 25 years OpenBSD has been developed by a community of volunteers funded through contributions collected by The OpenBSD Foundation. OpenBSD is freely available and can be used on most hardware, including Alpha, x86-64, ARMv7, ARMv8 (64-bit), PA-RISC, IA-32, LANDISK, Omron LUNA-88K, Loongson, MIPS64, PowerPC, SPARC64.

The CentOS Linux distribution is a stable, predictable, manageable and reproducible platform derived from the sources of Red Hat Enterprise Linux (RHEL). The operating system is built with community-driven efforts and is released free and open-source under the GPLv2. Since March 2004, CentOS has been used to power servers and desktops across the world, and the project is still going strong to this day.

A Linux distribution based on musl and BusyBox, designed for security, simplicity, and resource efficiency. Alpine Linux is mostly used in server environments as its hardened kernel and resource efficiency makes it perfect for containerisation. The distribution compiles all user-space binaries as position-independent executables along with stack-smashing protection for stack buffer overflow concerns.

Debian is a free and open-source operating system and GNU/Linux distribution that is openly developed by the community-supported Debian Project. The distribution was first released in 1993 and today it is the base of many other Linux-based distribution such as the popular Ubuntu. The project includes over 59000 packages, precompiled software bundled up for easy installation on your machine.