F11 mrtg external scripts permission errors (selinux?)

[Daniel J Walsh]

On 07/12/2009 07:04 AM, Jurgen Kramer wrote:
> I've just upgraded my server to Fedora 11 (clean install) and I am
> trying to get everything working again. I have some problems with my
> mrtg scripts, they seem not allowed to run. I guess this has something
> to do with selinux.
> 
> I see the following errors in the log:
> 
> Can't exec "/etc/mrtg/cpu_temp.sh": Permission denied at /usr/bin/mrtg
> line 2030.
> 2009-07-12 12:35:02: WARNING: Running '/etc/mrtg/cpu_temp.sh':
> Permission denied
> 2009-07-12 12:35:02: WARNING: Could not get any data from external
> command '/etc/mrtg/cpu_temp.sh'
> Maybe the external command did not even start. (Permission denied)
> 
> I changed the security context for all files residing in /etc/mrtg to:
> 
> [kramer at nasng mrtg]$ ll -Z
> -rwx------. root root system_u:object_r:mrtg_etc_t:s0  cpufan_speed.sh
> -rwx------. root root system_u:object_r:mrtg_etc_t:s0  cpu_temp.sh
> -rwx------. root root system_u:object_r:mrtg_etc_t:s0  fan_speed.sh
> -rwx------. root root system_u:object_r:mrtg_etc_t:s0  hdd_temp.sh
> -rwx------. root root system_u:object_r:mrtg_etc_t:s0  mb_temp.sh
> -rw-r--r--. root root system_u:object_r:mrtg_etc_t:s0  mrtg.cfg
> -rwx------. root root system_u:object_r:mrtg_etc_t:s0  nbfan_speed.sh
> 
> but I still get the permission denied errors.
> What should the correct security context for the scripts be? Or do they
> need to be moved to another location?
> 
> BTW running the command as executed by the crontab by hand works without
> problems.
> 
> 
> Jurgen
> 
mrtg_t can read etc_t but not execute it, these should probably be labeled bin_t.

Please attach the AVC messages that mrtg is complaining about, so I can try to write a better setroubleshoot plugin for this.