Peter Lesterhuis wrote:
When I boot I see this message: "ClamAV daemon: ERROR: can't open
> > > /var/log/clamav/clamlog in append mode. Check permissions.
ERROR: > > > problem with internal logger. Please check permissions
of > > > /var/log/clamav/clamlog."
> > > I checked the permissions (600) and set them to 666 to be sure
that the > > > file is writable for the owner clamav. (Shouldn't be
necessary though).
> > > Still I can't start clamd.
> > > In clamav.conf the option LogFileUnlock is uncommented.
> > > I don't understand why I keep having this error.
> > > Any suggestion is wellcome.
> > > >
> > Do you have SELinux enabled, and if so, are there any messages with
> > "avc: denied" in /var/log/messages or /var/log/audit/audit.log?
> > > Yes, I have.
> In /var/log/audit/audit.log I have this message:
> type=AVC msg=audit(1149784852.944:133): avc: denied { write } for
> pid=2352 comm="freshclam" name="log" dev=tmpfs ino=6715 >
scontext=system_u:system_r:freshclam_t:s0 >
tcontext=system_u:object_r:devlog_t:s0 tclass=sock_file
> type=SYSCALL msg=audit(1149784852.944:133): arch=40000003
syscall=102 > success=no exit=-13 a0=3 a1=bf926000 a2=4f32aff4 a3=15
items=1 pid=2352 > auid=4294967295 uid=46 gid=46 euid=46 suid=46
fsuid=46 egid=46 sgid=46 > fsgid=46 comm="freshclam"
exe="/usr/bin/freshclam"
Curious. The AVC seems to relate to denial of sending a syslog message,
whereas the error message seems to relate to a regular file
(/var/log/clamav/clamlog).
Are you on FC4 or FC5? Are your selinux policy packages up to date?
I have FC5 and yes, selinux packages are up to date.
OK, you can fix this denial as follows:
Set yourself up for making local policy modules:
# yum install checkpolicy
# cd /root
# mkdir selinux.local
# cd selinux.local
# chcon -R -t usr_t .
# ln -s /usr/share/selinux/devel/Makefile .
Make a local policy module for this issue, in this directory:
1. Create a file myfreshclam.te with this content:
policy_module(myfreshclam, 0.1.0)
require {
type freshclam_t;
};
# Allow freshclam to send syslog messages
logging_send_syslog_msg(freshclam_t)
2. Build the policy module:
# make
3. Finally, install your new policy module:
# semodule -i myfreshclam.pp
That should allow freshclam to send syslog messages, though I'm not
convinced that that's the actual problem you're seeing.
Paul.
