Re: get rid of setenforce

Henry,

With SELinux you can confine the root user and enable
the secure_mode_policyload boolean.

Kind Regards,

On Thu, Feb 9, 2023 at 4:10 PM Michael Radecker <[email protected]>
wrote:

> Henry,
>
> The setenforce command switches SELinux temporarily.  To make it persist,
> change the /etc/selinux/config file and reboot.
>
>
> -Mike
>
> On Thu, Feb 9, 2023, 12:40 PM Henry Zhang <[email protected]> wrote:
>
>> Mike,
>>
>> setenforce can change mode. See:
>>
>> root@ctx0700:~# cat /etc/selinux/config
>> # This file controls the state of SELinux on the system.
>> # SELINUX= can take one of these three values:
>> #     enforcing - SELinux security policy is enforced.
>> #     permissive - SELinux prints warnings instead of enforcing.
>> #     disabled - No SELinux policy is loaded.
>> SELINUX=enforcing
>>
>> root@ctx0700:~# sestatus
>>
>>
>> SELinux status:                 enabled
>> SELinuxfs mount:                /sys/fs/selinux
>> SELinux root directory:         /etc/selinux
>> Loaded policy name:             mcs
>> Current mode:                   enforcing
>> Mode from config file:          enforcing
>> Policy MLS status:              enabled
>> Policy deny_unknown status:     allowed
>> Memory protection checking:     requested (insecure)
>> Max kernel policy version:      31
>>
>> root@ctx0700:~# setenforce 0
>>
>>
>> root@ctx0700:~# getenforce
>>
>>
>> Permissive
>> root@ctx0700:~# sestatus
>> SELinux status:                 enabled
>> SELinuxfs mount:                /sys/fs/selinux
>> SELinux root directory:         /etc/selinux
>> Loaded policy name:             mcs
>> Current mode:                   permissive
>> Mode from config file:          enforcing
>> Policy MLS status:              enabled
>> Policy deny_unknown status:     allowed
>> Memory protection checking:     requested (insecure)
>> Max kernel policy version:      31
>>
>> -----henry
>>
>> On Thu, Feb 9, 2023 at 12:11 PM Michael Radecker <
>> [email protected]> wrote:
>>
>>> Henry,
>>>
>>> You can edit /etc/selinux/config to state SELINUX=enforcing
>>>
>>> When you reboot, your system will be enforcing SELinux policies and it
>>> will persist.  I'm also including a link to Red Hat documentation regarding
>>> this topic.
>>>
>>>
>>> https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/using_selinux/changing-selinux-states-and-modes_using-selinux
>>>
>>> -Mike
>>>
>>>
>>> On Thu, Feb 9, 2023 at 11:58 AM Henry Zhang <[email protected]>
>>> wrote:
>>>
>>>> Hi folks,
>>>>
>>>> setenforce allows users to swap selinux mode between enforcing and
>>>> permissive.
>>>> If I want my selinux to stay in enforcing mode forever so that nobody
>>>> is able to interfere with my selinux.
>>>>
>>>> What should I do?
>>>>
>>>> Thanks.
>>>>
>>>> ---henry
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-- 

Simon Sekidde

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