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Guided Exercise: Changing SELinux Modes

In this lab, you will manage SELinux modes, both temporarily and persistently.

Resources
Machines: serverX

Outcomes

You will get practice viewing and setting the current SELinux mode.

  1. Log in as root on serverX. Display the current SELinux mode. 

    [root@serverX ~]# getenforce
Enforcing

  2. Change the default SELinux mode to permissive and reboot. 

    [root@serverX ~]# vi /etc/selinux/config
[root@serverX ~]# grep '^SELINUX' /etc/selinux/config
SELINUX=permissive
SELINUXTYPE=targeted
[root@serverX ~]# reboot

  3. When serverX comes back up, log in as root and display the current SELinux mode. 

    [root@serverX ~]# getenforce
Permissive

  4. Change the default SELinux mode to enforcing. 

    [root@serverX ~]# vi /etc/selinux/config
[root@serverX ~]# grep '^SELINUX' /etc/selinux/config
SELINUX=enforcing
SELINUXTYPE=targeted

  5. Set the current SELinux mode to enforcing. 

    [root@serverX ~]# setenforce 1
[root@serverX ~]# getenforce
Enforcing
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Revision: rh199-7-d0984a3