[CentOS] Baffled by selinux

Thu Feb 16 12:35:17 UTC 2012
Lars Hecking <lhecking at users.sourceforge.net>

 Apache DocumentRoot on an NFS directory:

[root at localhost ~]# service httpd start
Starting httpd: Warning: DocumentRoot [/home/www/html] does not exist
Syntax error on line 292 of /etc/httpd/conf/httpd.conf:
DocumentRoot must be a directory
                                                           [FAILED]
[root at localhost ~]# 

 After some research, I found this (dated) link

  http://www.redhat.com/archives/rhl-list/2005-July/msg02443.html

 and followed the suggestion, setsebool -P use_nfs_home_dirs=1. But I still
 can't start httpd. Not sure what to make of the audit log:

type=AVC msg=audit(1329395502.678:61926): avc:  denied  { search } for  pid=25674 comm="httpd" name="" dev=0:23 ino=3471615 scontext=unconfined_u:system_r:httpd_t:s0 tcontext=system_u:object_r:nfs_t:s0 tclass=dir
type=SYSCALL msg=audit(1329395502.678:61926): arch=c000003e syscall=4 success=no exit=-13 a0=7fef342bc080 a1=7fffaf747370 a2=7fffaf747370 a3=7fef30c65c30 items=0 ppid=25673 pid=25674 auid=0 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=pts0 ses=2 comm="httpd" exe="/usr/sbin/httpd" subj=unconfined_u:system_r:httpd_t:s0 key=(null)
type=AVC msg=audit(1329395502.681:61927): avc:  denied  { search } for  pid=25674 comm="httpd" name="" dev=0:23 ino=3471615 scontext=unconfined_u:system_r:httpd_t:s0 tcontext=system_u:object_r:nfs_t:s0 tclass=dir
type=SYSCALL msg=audit(1329395502.681:61927): arch=c000003e syscall=4 success=no exit=-13 a0=7fef342eae68 a1=7fffaf747630 a2=7fffaf747630 a3=50 items=0 ppid=25673 pid=25674 auid=0 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=pts0 ses=2 comm="httpd" exe="/usr/sbin/httpd" subj=unconfined_u:system_r:httpd_t:s0 key=(null)