Enabling the strict policy on Fedora 7

[Patrick McNeal]

I'm new to SELinux, and have been banging my head against the wall on  
how to change from the targeted to the strict policy on my Fedora 7  
box.  I just figured out how to do it, and thought that it would be a  
good thing to have in the archive so others might more easily find a  
solution.

1 - Install the strict policy using the package manager.  I used  
selinux-policy-strict-2.6.4-29.fc.noarch.
2 - Using the SELinux Administration tool, set the "system default  
policy type" to "strict".
3 - Set the "system default enforcing mode" to "permissive".
4 - Check "Relabel on next reboot".
3 - Reboot

If you leave enforcing mode set to the default of "enforcing" you'll  
get this error on reboot:

/sbin/init: error while loading shared libraries: libsepol.so.1:  
failed to map segment from shared object: Permission denied
Kernel panic - not syncing: Attempted to kill init!

Note, you can also make these changes via the command line by  
editing /etc/selinux/config, setup a relabel by  
touching /.autorelabel and rebooting.

Hope that helps someone.

--Patrick

[Daniel J Walsh]

Patrick McNeal wrote:
> I'm new to SELinux, and have been banging my head against the wall on 
> how to change from the targeted to the strict policy on my Fedora 7 
> box.  I just figured out how to do it, and thought that it would be a 
> good thing to have in the archive so others might more easily find a 
> solution.
>
> 1 - Install the strict policy using the package manager.  I used 
> selinux-policy-strict-2.6.4-29.fc.noarch.
> 2 - Using the SELinux Administration tool, set the "system default 
> policy type" to "strict".
> 3 - Set the "system default enforcing mode" to "permissive".
> 4 - Check "Relabel on next reboot".
> 3 - Reboot
>
> If you leave enforcing mode set to the default of "enforcing" you'll 
> get this error on reboot:
>
> /sbin/init: error while loading shared libraries: libsepol.so.1: 
> failed to map segment from shared object: Permission denied
> Kernel panic - not syncing: Attempted to kill init!
>
> Note, you can also make these changes via the command line by editing 
> /etc/selinux/config, setup a relabel by touching /.autorelabel and 
> rebooting.
>
> Hope that helps someone.
>
> --Patrick
>
> -- 
> fedora-selinux-list mailing list
> [e-mail]
> https://www.redhat.com/mailman/listinfo/fedora-selinux-list

You need to boot first in permissive mode to allow relabeling to happen, 
then reboot in enforcing mode.

Or just setenforce 1 after the first boot.

At the kernel boot line you can just enter enforcing=0 to boot in 
permissive mode.

Strict policy on FC6 and F7

[Hal]

Hallo

After a problem with the strict policy in FC6: firefox does not start under
strict policy. No messages at all. I decided to check if firefox under strict
policy on F7 works. 
I have installed F7 and enabled strict policy. But from now on I can no longer
login in enforcing is on . When I enter username and password and I get
permission denied even for root in GDM. In console I just get new "username"
prompt.

I do not understand why firefox does not start in fc6 and 
can not longin on F7 under strict policy?

What might be wrong?

Hal

____________________________________________________________________________________
Luggage? GPS? Comic books? 
Check out fitting gifts for grads at Yahoo! Search
http://search.yahoo.com/search?fr=oni_on_mail&p=graduation+gifts&cs=...

Strict policy on FC6 and F7

[shintaro_fujiwara]

2007-08-07 (火) の 09:48 -0700 に Hal さんは書きました:
> Hallo
>
> After a problem with the strict policy in FC6: firefox does not start under
> strict policy. No messages at all. I decided to check if firefox under strict
> policy on F7 works. 
> I have installed F7 and enabled strict policy. But from now on I can no longer
> login in enforcing is on . When I enter username and password and I get
> permission denied even for root in GDM. In console I just get new "username"
> prompt.
>
> I do not understand why firefox does not start in fc6 and 
> can not longin on F7 under strict policy?
>
> What might be wrong? 
> Because, now you're in enforcing mode,

please disable SELinux and login.
Install devel policy.

#yum install selinux-policy-devel

Please install this module.

#vim local.te

module local 1.0;

require {
        type local_login_t;
        class netlink_audit_socket { append bind connect shutdown ioctl
getattr
setattr shutdown getopt setopt write nlmsg_relay nlmsg_read create
read };
}

logging_send_audit_msg(local_login_t)
logging_set_loginuid(local_login_t)

#make -f /usr/share/selinux/devel/Makefile local.pp
#semodule -i local.pp
#semodule -l|grep local

Set SELinux enforcing.

Did it work?
> Hal
>   ____________________________________________________________________________________
>
> Luggage? GPS? Comic books? 
> Check out fitting gifts for grads at Yahoo! Search
> http://search.yahoo.com/search?fr=oni_on_mail&p=graduation+gifts&cs=...
>
> --
> fedora-selinux-list mailing list
> [e-mail]
> https://www.redhat.com/mailman/listinfo/fedora-selinux-list