SElinux: How to change to permissive mode without a reboot?

Solution 1:

setenforce can only be used to change the mode SELinux is running in. It cannot be used to enable SELinux.

Solution 2:

So, SELinux must first be enabled as follow:

sudo nano /etc/selinux/config

then change

SELINUX=disabled

into

SELINUX=permissive

and reboot.

After reboot, you should have

# getenforce
Permissive