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 - [ANSSI - Configuration recommendations of a GNU/Linux system](https://www.ssi.gouv.fr/en/guide/configuration-recommendations-of-a-gnulinux-system/)
 - [CIS Benchmark for Distribution Independent Linux](https://www.cisecurity.org/benchmark/distribution_independent_linux/)
 - [trimstray - The Practical Linux Hardening Guide](https://github.com/trimstray/the-practical-linux-hardening-guide) - practical step-by-step instructions for building your own hardened systems and services. Tested on CentOS 7 and RHEL 7.
+- [trimstray - Linux Hardening Checklist](https://github.com/trimstray/linux-hardening-checklist) - most important hardening rules for GNU/Linux systems (summarized version of The Practical Linux Hardening Guide) 
 - [How To Secure A Linux Server](https://github.com/imthenachoman/How-To-Secure-A-Linux-Server) - for a single Linux server at home
 - [nixCraft - 40 Linux Server Hardening Security Tips (2019 edition)](https://www.cyberciti.biz/tips/linux-security.html)
 - [nixCraft - Tips To Protect Linux Servers Physical Console Access](https://www.cyberciti.biz/tips/tips-to-protect-linux-servers-physical-console-access.html)