Description of problem:
SELinux is preventing /usr/bin/python2.7 from 'read' accesses on the file unix.

*****  Plugin catchall (100. confidence) suggests  ***************************

If you believe that python2.7 should be allowed read access on the unix file by default.
Then you should report this as a bug.
You can generate a local policy module to allow this access.
Do
allow this access for now by executing:
# grep cobblerd /var/log/audit/audit.log | audit2allow -M mypol
# semodule -i mypol.pp

Additional Information:
Source Context                system_u:system_r:cobblerd_t:s0
Target Context                system_u:object_r:proc_net_t:s0
Target Objects                unix [ file ]
Source                        cobblerd
Source Path                   /usr/bin/python2.7
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           python-2.7.3-7.2.fc17.x86_64
Target RPM Packages           
Policy RPM                    selinux-policy-3.10.0-169.fc17.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Host Name                     (removed)
Platform                      Linux (removed) 3.8.11-100.fc17.x86_64 #1 SMP Wed
                              May 1 19:31:26 UTC 2013 x86_64 x86_64
Alert Count                   1
First Seen                    2013-05-12 14:06:03 PDT
Last Seen                     2013-05-12 14:06:03 PDT
Local ID                      9f8eedb5-0578-4f2c-ba6f-353a4bb7b96c

Raw Audit Messages
type=AVC msg=audit(1368392763.234:128): avc:  denied  { read } for  pid=2314 comm="cobblerd" name="unix" dev="proc" ino=4026532002 scontext=system_u:system_r:cobblerd_t:s0 tcontext=system_u:object_r:proc_net_t:s0 tclass=file


type=SYSCALL msg=audit(1368392763.234:128): arch=x86_64 syscall=access success=no exit=EACCES a0=7f7b6e937b20 a1=4 a2=7f7b6e937b2e a3=7f7b6e937930 items=0 ppid=1 pid=2314 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 ses=4294967295 tty=(none) comm=cobblerd exe=/usr/bin/python2.7 subj=system_u:system_r:cobblerd_t:s0 key=(null)

Hash: cobblerd,cobblerd_t,proc_net_t,file,read

audit2allow

#============= cobblerd_t ==============
allow cobblerd_t proc_net_t:file read;

audit2allow -R

#============= cobblerd_t ==============
allow cobblerd_t proc_net_t:file read;


Additional info:
hashmarkername: setroubleshoot
kernel:         3.8.11-100.fc17.x86_64
type:           libreport