SELinux Configuration Change

clear
sudo cp /etc/selinux/config /etc/selinux/config.bk
sudo sed -i '/^#/d' /etc/selinux/config
sudo sed -i '/^$/d' /etc/selinux/config
	
SELinuxStatus=$(cat /etc/selinux/config | grep SELINUX=|cut -d'=' -f2)
echo Current Status: $SELinuxStatus

clear
# SELinux - Enforcing
sudo sed -i "s|SELINUX=$SELinuxStatus|SELINUX=enforcing|" /etc/selinux/config
SELinuxStatus=$(cat /etc/selinux/config | grep SELINUX=|cut -d'=' -f2)
echo New Status: $SELinuxStatus

clear
# SELinux - Permissive
sudo sed -i "s|SELINUX=$SELinuxStatus|SELINUX=permissive|" /etc/selinux/config
SELinuxStatus=$(cat /etc/selinux/config | grep SELINUX=|cut -d'=' -f2)
echo New Status: $SELinuxStatus

clear
# SELinux - Disable
sudo sed -i "s|SELINUX=$SELinuxStatus|SELINUX=disabled|" /etc/selinux/config
SELinuxStatus=$(cat /etc/selinux/config | grep SELINUX=|cut -d'=' -f2)
echo New Status: $SELinuxStatus

A couple ways to do this, I like this method below most as it bundles some stuff above into a nice package.

clear
sudo cp /etc/selinux/config /etc/selinux/config.original
sudo sed -i '/^#/d' /etc/selinux/config
sudo sed -i '/^$/d' /etc/selinux/config
SELinuxStatus=$(cat /etc/selinux/config | grep SELINUX=|cut -d'=' -f2)
echo "Current Status: $SELinuxStatus"
sudo sed -i "s|SELINUX=$SELinuxStatus|SELINUX=permissive|" /etc/selinux/config
SELinuxStatus=$(cat /etc/selinux/config | grep SELINUX=|cut -d'=' -f2)
echo "New Status: $SELinuxStatus"
sudo shutdown -r now

Reference: https://www.crypt.gen.nz/papers/how-to-disable-selinux/