Further reading

• Exploring the /proc filesystem: https://www.tecmint.com/exploring-proc-file-system-in-linux/
• Linux kernel security subsystem wiki: https://kernsec.org/wiki/index.php/Main_Page
• Linux Magic System Request Key Hacks: https://www.kernel.org/doc/html/latest/admin-guide/sysrq.html
• Linux to get kernel "lockdown" feature: https://www.zdnet.com/article/linux-to-get-kernel-lockdown-feature/
• Protect hard and symbolic links in RHEL/CentOS: https://www.tecmint.com/protect-hard-and-symbolic-links-in-centos-rhel/https://www.tecmint.com/protect-hard-and-symbolic-links-in-centos-rhel/
• Log suspicious martian packets: https://www.cyberciti.biz/faq/linux-log-suspicious-martian-packets-un-routable-source-addresses/
• Protect against the usage of ptract: https://linux-audit.com/protect-ptrace-processes-kernel-yama-ptrace_scope/
• Introduction to Linux Control Groups (cgroups...