December 2025
Intermediate to advanced
896 pages
25h 4m
English
Content preview from Linux Bible, 11th Edition
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CHAPTER 25Enhancing Linux Security with SELinux
For servers that require the highest levels of security, basic Linux security is not enough. By default, a process running on a Linux system uses standard permissions on files and directories to allow or deny access to those items. A more secure approach would be to allow access to the specific files, directories, ports, system calls, processes, and network sockets that the service needs and deny access to everything else. That is what Security Enhanced Linux (SELinux) does.
SELinux was developed by the National Security ...
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