Top 31 free open source tools for Operating Systems Systems/Services

Operating Systems

  🔸 Slackware – the most “Unix-like” Linux distribution.
  🔸 OpenBSD – multi-platform 4.4BSD-based UNIX-like operating system.
  🔸 HardenedBSD – HardenedBSD aims to implement innovative exploit mitigation and security solutions.
  🔸 Kali Linux – Linux distribution used for Penetration Testing, Ethical Hacking and network security assessments.
  🔸 Parrot Security OS – cyber security GNU/Linux environment.
  🔸 Backbox Linux – penetration test and security assessment oriented Ubuntu-based Linux distribution.
  🔸 BlackArch – is an Arch Linux-based penetration testing distribution for penetration testers.
  🔸 Pentoo – is a security-focused livecd based on Gentoo.
  🔸 Security Onion – Linux distro for intrusion detection, enterprise security monitoring, and log management.
  🔸 Tails – is a live system that aims to preserve your privacy and anonymity.
  🔸 vedetta – OpenBSD router boilerplate.
  🔸 Qubes OS – is a security-oriented OS that uses Xen-based virtualization.

Rajesh Kumar

I’m Rajesh Kumar, a DevOps, SRE, DevSecOps, Cloud, and Platform Engineering expert passionate about sharing practical knowledge, real-world experiences, and industry best practices. I have worked at Cotocus and regularly write about technology, travel, investing, health, product reviews, and digital marketing through my various platforms.

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