Mail disaster - semi-new system

G. Armour Van Horn vanhorn at
Tue May 16 01:33:23 IST 2006

Jon Radel wrote:

>G. Armour Van Horn wrote:
>>I don't think so, I am sure I didn't choose to install SELinux when I
>>set this up, and when I invoke "system-config-securitylevel" there is
>>nothing to play with other than the firewall - which I have turned off.
>>(The machine is behind a damned good firewall already, and the
>>command-line tools for configuring the firewall on the Fedora box aren't
>>too helpful if you want to open more than a couple non-standard ports.)
>>A quick search just now suggests that, if I had SELinux running, there
>>would be a tab for it in system-config-securitylevel.
>Just for grins, you might want to, as root, try the command
>/usr/sbin/sestatus -v
>and look what's in /etc/sysconfig/selinux if anything.
>See for the
>selinux as used in Fedora Core 5 FAQ (which you may well have already
>looked at).
>--Jon Radel
Well, that's interesting, it seems I am running it. (See below) I'll 
trundle off and look at that page.

Do I want to be running SELinux for some reason? Will it make my life 
better in sufficient ways to justify the grief it will cause me to have 
one server behave differently than the others?


[root at verbose mail]# /usr/sbin/sestatus -v
SELinux status:                 enabled
SELinuxfs mount:                /selinux
Current mode:                   enforcing
Mode from config file:          enforcing
Policy version:                 20
Policy from config file:        targeted

Process contexts:
Current context:                
Init context:                   system_u:system_r:init_t
/sbin/mingetty                  system_u:system_r:getty_t

File contexts:
Controlling term:               root:object_r:devpts_t
/etc/passwd                     root:object_r:etc_runtime_t
/etc/shadow                     root:object_r:etc_runtime_t
/bin/bash                       system_u:object_r:shell_exec_t
/bin/login                      system_u:object_r:login_exec_t
/bin/sh                         system_u:object_r:bin_t -> 
/sbin/agetty                    system_u:object_r:getty_exec_t
/sbin/init                      system_u:object_r:init_exec_t
/sbin/mingetty                  system_u:object_r:getty_exec_t
/usr/sbin/sshd                  system_u:object_r:sshd_exec_t
/lib/                  system_u:object_r:lib_t -> 
/lib/              system_u:object_r:lib_t -> 

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