What is SELinux (Security-Enhanced Linux)? - Red Hat SELinux defines access controls for the applications, processes, and files on a system It uses security policies, which are a set of rules that tell SELinux what can or can’t be accessed, to enforce the access allowed by a policy
What is SELinux? - GeeksforGeeks SELinux is a special security system built into Linux computers It helps keep your computer safe and secure With SELinux, different programs and users on the computer have limited permissions
Chapter 1. Getting started with SELinux - Red Hat Security Enhanced Linux (SELinux) provides an additional layer of system security SELinux fundamentally answers the question: May <subject> do <action> to <object>?, for example: May a web server access files in users' home directories? 1 1 Introduction to SELinux
What Is SELinux? | Baeldung on Linux SELinux is a security module built into the Linux kernel to provide extra access control beyond the usual Unix-style permission system It plays a key role in protecting against privilege escalation, misconfigurations, and zero-day exploits SELinux matters most in environments where security is crucial
SELinux - ArchWiki Security-Enhanced Linux (SELinux) is a Linux feature that provides a variety of security policies, including U S Department of Defense style Mandatory Access Control (MAC), through the use of Linux Security Modules (LSM) in the Linux kernel
A Practical Introduction to SELinux for Beginner Linux Users - TecAdmin SELinux is a mandatory access control (MAC) system embedded into Linux distributions It augments the traditional Unix Linux discretionary access control (DAC) systems by providing additional, fine-grained control over system resources and processes
Understanding and Configuring SELinux - Linux Bash This article provides an in-depth look at Security-Enhanced Linux (SELinux), a mechanism enhancing Linux security via mandatory access control Developed by the NSA, SELinux operates in three modes—Enforcing, Permissive, and Disabled—to control system access
SELinux Explained: Why You Need It and How to Set It Up SELinux stands for Security-Enhanced Linux It’s a security architecture integrated into the Linux kernel that provides mechanisms to enforce the separation of information based on confidentiality and integrity requirements
Introduction to SELinux concepts and management - LinuxConfig SELinux (Security Enhanced Linux) is an implementation of a Mandatory Access Control permission system (MAC) in the Linux kernel This type of access control differs from Discretionary Access Control systems (DAC) like ACLs and standard unix ugo rwx permissions, in how the access to a resource is provided
Understanding SELinux Basics SELinux uses labels attached to objects (for example, les and network sockets) to make access control decisions The default action of SELinux is to deny any access