SELinux Apache Allow To Serve The Contents Of a Loopback Mounted ISO Image

To allow Apache to serve the contents of a loopback-mounted ISO image using SELinux, you will need to set the correct SELinux context on the ISO image file and the mount point.

First, you will need to mount the ISO image file using the loop option. For example:

mount -o loop /path/to/image.iso /mnt/iso

Next, use the chcon command to set the httpd_sys_content_t context on the ISO image file and the mount point:

chcon -t httpd_sys_content_t /path/to/image.iso
chcon -R -t httpd_sys_content_t /mnt/iso

Finally, make sure that the Apache configuration allows access to the mount point. For example, you might have a VirtualHost configuration like this:

<VirtualHost *:80>
    DocumentRoot /mnt/iso
    <Directory /mnt/iso>
        AllowOverride All
        Require all granted
    </Directory>
</VirtualHost>

With these changes in place, Apache should be able to serve the contents of the ISO image to clients. You may also need to adjust the SELinux boolean httpd_use_nfs to allow Apache to serve files from a loopback-mounted filesystem. You can do this using the setsebool command:

setsebool -P httpd_use_nfs 1

Keep in mind that these changes will only take effect if SELinux is enabled and in enforcing mode. You can check the current SELinux mode by running the sestatus command.