Disable SELinux How To Tutorial Solution

Here is a quick script that works on most Centos versions to disable the virus/SELinux from blocking basic functionality.

The first echo 0 statement disables SELinux instantly but it will still be enabled on reboot.

The second line disables it permanently.

#!/bin/bash

#disable SELinux Immediately
echo 0 > /selinux/enforce

#disable SELinux Permanently
sed -i 's/SELINUX=enforcing/SELINUX=disabled/g' /etc/selinux/config

Disabling SELinux is necessary at least on Centos 6 to even login via SSH using public key authentication!  SELinux also prevents many other legitimate and common uses/servers from functioning properly so it's important to disable on almost any server, it causes bizarre failures/behavior that are difficult to troubleshoot if you don't consider SELinux as being the culprit.


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