Disable SELinux without reboot

To disable the SELinux by modifying /etc/sysconfig/selinux file, we have to perform a reboot. In some cases, we may not be able to perform a reboot because this involves a downtime of the system. In this situations we can disable SELinux by using a simple command. This will not disable SELinux permanently. The effect will last until the next reboot, but you have the option to edit the selinux file so that it will be in the disabled state even after  the reboot also. The steps for disabling selinux permanently are explained in my previous post.

The command the check the status of SELinux is given below.

sestatus

This may show enforcing or permissive or disabled. In permissive mode, SELinux will not block anything, but merely warns you. The line will show enforcing when it’s actually blocking.

To disable the SELinux temporarily we can use the following command. This has to be executed as root or using sudo.

setenforce 0

After this command execution we can check the status of selinux using sestatus command. If it is permissive, we are good to go. 🙂

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