[CentOS] Help with httpd userdir recovery

Robert Moskowitz
Wed, 28 Dec 2016 17:07:08 -0000

On 12/28/2016 05:11 AM, Todor Petkov wrote:
> On Wed, Dec 28, 2016 at 5:18 AM, Robert Moskowitz <rgm at
htt-consult.com> wrote:
>> Which is why I wonder if there is some different config for the C7.3
version
>> of apache.
>>
>> Or something with the C7-arm build...
> Can you check for SELinux warnings/errors in /var/log/audit/audit.log?

Good advice.  As I suspect the problem is with SELinux.

So I tried an access.  What follows is the access_log entry, the
error_log entry and the 3 entries in the audit.log:

192.168.160.12 - - [28/Dec/2016:11:59:10 -0500] "GET /~rgm/family/
HTTP/1.1" 403 214 "-" "Mozilla/5.0 (X11; Fedora; Linux
x86_64; rv:50.0)
Gecko/20100101 Firefox/50.0"

[Wed Dec 28 11:59:10.294915 2016] [autoindex:error] [pid 2141]
(13)Permission denied: [client 192.168.160.12:56456] AH01275: Can't open
directory for index: /home/rgm/public_html/family/



type=AVC msg=audit(1482944350.289:339): avc:  denied  { read } for
pid=2141 comm="httpd" name="family" dev="sda3"
ino=262199
scontext=system_u:system_r:httpd_t:s0
tcontext=unconfined_u:object_r:httpd_user_content_t:s0 tclass=dir
permissive=0

type=SYSCALL msg=audit(1482944350.289:339): arch=40000028 syscall=322
per=800000 success=no exit=-13 a0=ffffff9c a1=80657458 a2=a4800 a3=0
items=0 ppid=2135 pid=2141 auid=4294967295 uid=48 gid=48 euid=48 suid=48
fsuid=48 egid=48 sgid=48 fsgid=48 tty=(none) ses=4294967295
comm="httpd"
exe="/usr/sbin/httpd" subj=system_u:system_r:httpd_t:s0 key=(null)

type=PROCTITLE msg=audit(1482944350.289:339):
proctitle=2F7573722F7362696E2F6874747064002D44464F524547524F554E44


I will say that after enabling selinux on this image per the
instructions of the team doing the Centos7-arm builds, I got the
following messages when I did things like 'setsebool -P
httpd_enable_homedirs on':

[ 2273.047017] SELinux:  Class binder not defined in policy.
[ 2273.052531] SELinux: the above unknown classes and permissions will
be allowed


So something may well not be right with my SELinux.

Bob