Articles about selinux | UserComp.com

Tomcat runs from the command line, but will not start as a systemd service

Resolve Tomcat systemd startup failures by configuring environment variables, fixing file ownership, and adjusting SELinux policies.

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Mapping SELinux User to Linux User

Map Linux user imran to SELinux user secman_u using semanage to enforce correct security contexts.

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Understanding and Using SEBOOL Settings in Tech Support

Resolve SELinux AVC denials for services like HTTPD by identifying and enabling specific boolean flags to grant necessary permissions without disabling security policies.

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Enabling SELinux on Debian-based Systems: A Solution for Parrot OS Users

Resolve the inability to enable SELinux on Parrot OS by explaining kernel limitations and recommending AppArmor as a viable mandatory access control alternative.

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Fix SELinux Enforced Mode Preventing SSH Connection on Rocky Linux 8.10

Resolve SSH connection failures on Rocky Linux 8.10 caused by SELinux enforcing mode blocking access due to misconfigured port or file security contexts.

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Creating Hybrid SELinux Policies for NFS-Server and TFTP-Client

Resolves SELinux denials for NFS server and TFTP client by creating hybrid policy modules to grant specific network and file access without disabling mandatory access controls.

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Understanding Linux Permissions: An In-depth Look at SELinux, OpenSSH, Systemd, Docker, and RPM-based Builds

Resolve Linux permission errors in SELinux, OpenSSH, Systemd, and Docker to secure applications and ensure stable deployments.

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Linux Ownership Inheritance Parent Dir Not Working with Group Applied (Apache on Rocky Linux 9, SELINUX Permissive)

Resolve Linux file group inheritance issues on Rocky Linux 9 by setting the setgid bit to ensure Apache can access newly created files.

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Understanding SELinux Security Context Labels for a Process

Resolve SELinux permission denied errors by diagnosing process security context labels and inheritance issues.

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Understanding SElinux and Mandatory Access Control for Linux and MacOS

Resolve confusion between SELinux on Linux and Seatbelt on macOS by clarifying their distinct Mandatory Access Control implementations.

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Troubleshooting SSH Port Change Issues in Almalinux9

Resolve lost SSH connectivity on AlmaLinux 9 after changing the port by synchronizing sshd, SELinux, and firewall configurations.

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