SELinux, short for Security-Enhanced Linux, represents a robust Linux kernel security paradigm that furnishes a fortified collection of access control security guidelines for the Linux operating system.
SELinux often receives criticism as it appears to make considerable efforts to hinder the operations of legitimate applications.
This instructional manual, produced by Jack Wallen on behalf of TechRepublic Premium, elucidates the functionality of SELinux and dispenses valuable suggestions to enrich your acumen.
Highlighted excerpt from the download:
DETAILED PROCEDURE TO PERMIT PORTS USING SELINUX
By utilizing semanage, you can authorize specific ports as well. Supposing you have decided to set up SSH to operate on port 33000, and SELinux is obstructing traffic? In such a scenario, implement semanage akin to the aforementioned process, incorporating the protocol (via the -p parameter) and the port in this manner:
sudo semanage port -a -t ssh_port_t -p tcp 33000
Subsequently (provided SSH is correctly configured), SELinux will not hinder your SSH communications on port 33000.
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TIME SAVED: The crafting of this content necessitated a dedicated effort of 18 hours encompassing writing, editing, and research.
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