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Re: restoring default selinux policy configuration

Hash: SHA1

Murray McAllister wrote:
> Daniel J Walsh wrote:
> Eric Paris wrote:
>>>> On Wed, 2008-09-17 at 08:10 -0400, Daniel J Walsh wrote:
>>>>> Hash: SHA1
>>>>> Murray McAllister wrote:
>>>>>> Hi,
>>>>>> If I change a lot of booleans, or install a lot of custom policies, is
>>>>>> there any way to restore selinux policy (targeted) to its default
>>>>>> configuration?
>>>>>> Thanks.
>>>>>> -- 
>>>>>> fedora-selinux-list mailing list
>>>>>> fedora-selinux-list redhat com
>>>>>> https://www.redhat.com/mailman/listinfo/fedora-selinux-list
>>>>> Well semanage does have a -D option to remove all local customizations
>>>>> for the object
>>>>> man semanage
>>>>> ..
>>>>>        -D, --deleteall
>>>>>               Remove all OBJECTS local customizations
>>>>> Example:
>>>>> semanage ports -D
>>>>> Would remove all port changes.
>>>>> There is no way to do this with modules currently.
>>>>> You could look at the modules in /usr/share/selinux/targeted/*.pp
>>>>> and compare them to semodule -l to see any modules that were different
>>>>> and use semodule -r MODNAME to remove them.
>>>> Gross horrible dangerous hack, be VERY careful, might eat your first
>>>> born, kidnap your grandmother, and blow your house down...
>>>> rpm -e --nodeps --justdb selinux-policy-targeted
>>>> rm -rf /etc/selinux/targeted
>>>> yum install selinux-policy-targeted
>>>> touch /.autorelabel
>>>> reboot
>>>> yes? no?
> I would put the machine in permissive before doing this.
>> Thanks. Should something like this be in the selinux user guide? The
>> commands above look safe to me - what's the worse that can happen?
>> Do problems occur if you don't relabel after the above steps?
No I believe a better solution would be

# setenforce 0
# yum remove selinux-policy\*
# rm -rf /etc/selinux/targeted /etc/selinux/config
# yum install selinux-policy-targeted
# yum install selinux-policy-devel policycoreutils-gui  *** Only if
these were removed byt the yum remove.
touch /.autorelabel; reboot

Which will get the postinstall scripts to run properly.

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