[vox-tech] NFS mounting a VFAT filesystem - uid and gid issues?
Marc Elliot Hall
marc at hallmarc.net
Wed Aug 17 06:47:00 PDT 2005
I've got one machine, "tiny", that has data I want to share with a second
machine, "oracle". This seems to be a fairly straightforward NFS operation,
except the partition on "tiny" that has the data is VFAT, and I want the
exported partition to be available to Apache. However, although the data
appears to be properly available on "oracle" when I execute
$ mount tiny.hallmarc.net:/windows
the ownership of the directories and files remains slightly off (group
should be "webusers" based on *my* understanding of the mount options).
$ ls -la /var/www/
drwxrwx--- 3 nobody users 32768 Aug 16 18:30 tiny/
I'm not using NIS to sync the users and groups across these systems...
which may be part of the problem, although /etc/passwd and /etc/group on
the two systems both have unique, matching entries for user "nobody" and
group "webuser".
In short, although I can browse the /var/www/tiny path from the command
line on "oracle", when I attempt to browse via http, i.e., using Konqueror,
I get 403 Forbidden errors.
Kernel versions and snippets of config files can be found at the below
of this message.
Any suggestions?
Configurations:
===================================================
"tiny" - Debian Testing - Machine where the data physically resides
===================================================
$ sudo uname -a
Linux tiny 2.6.8-2-686 #1 Thu May 19 17:53:30 JST 2005 i686 GNU/Linux
$ /usr/bin/rpcinfo -p
program vers proto port
100000 2 tcp 111 portmapper
100000 2 udp 111 portmapper
391002 2 tcp 853 sgi_fam
100024 1 udp 1020 status
100024 1 tcp 1023 status
100003 2 udp 2049 nfs
100003 3 udp 2049 nfs
100003 4 udp 2049 nfs
100003 2 tcp 2049 nfs
100003 3 tcp 2049 nfs
100003 4 tcp 2049 nfs
100021 1 udp 33122 nlockmgr
100021 3 udp 33122 nlockmgr
100021 4 udp 33122 nlockmgr
100021 1 tcp 33045 nlockmgr
100021 3 tcp 33045 nlockmgr
100021 4 tcp 33045 nlockmgr
100005 1 udp 939 mountd
100005 1 tcp 942 mountd
100005 2 udp 939 mountd
100005 2 tcp 942 mountd
100005 3 udp 939 mountd
100005 3 tcp 942 mountd
tiny:/etc/fstab
===================================================
# /etc/fstab: static file system information.
#
# <file system> <mount point> <type> <options> <dump> <pass>
proc /proc proc defaults 0 0
/dev/hda5 / ext3 defaults,errors=remount-ro 0 1
/dev/hda1 /boot ext3 defaults 0 2
/dev/hda3 /home ext3 defaults 0 2
/dev/hda6 /usr ext3 defaults 0 2
/dev/hda7 /var ext3 defaults 0 2
#make /windows partition owned by user nobody and group webusers
/dev/hda4 /windows vfat
rw,user,auto,gid=82,uid=501,umask=000 0 2
/dev/hda8 none swap sw 0 0
/dev/hdd /media/cdrom0 iso9660 ro,user,noauto 0 0
===================================================
tiny:/etc/rpc (relevant portions)
===================================================
# This file contains user readable names that can be used in place of
# rpc
# program numbers.
portmapper 100000 portmap sunrpc
rstatd 100001 rstat rstat_svc rup perfmeter
rusersd 100002 rusers
nfs 100003 nfsprog
mountd 100005 mount showmount
ypbind 100007
===================================================
===================================================
"oracle" - Mandrake 9.2 - Machine with the webserver
===================================================
$ sudo uname -a
Linux oracle.hallmarc.net 2.4.22-10mdk #1 Thu Sep 18 12:30:58 CEST 2003
i586 unknown unknown GNU/Linux
$ /usr/sbin/rpcinfo -p
program vers proto port
100000 2 tcp 111 portmapper
100000 2 udp 111 portmapper
100024 1 udp 837 status
100024 1 tcp 840 status
391002 2 tcp 32768 sgi_fam
100011 1 udp 811 rquotad
100011 2 udp 811 rquotad
100011 1 tcp 814 rquotad
100011 2 tcp 814 rquotad
100003 2 udp 2049 nfs
100003 3 udp 2049 nfs
100003 2 tcp 2049 nfs
100003 3 tcp 2049 nfs
100021 1 udp 32768 nlockmgr
100021 3 udp 32768 nlockmgr
100021 4 udp 32768 nlockmgr
100021 1 tcp 32769 nlockmgr
100021 3 tcp 32769 nlockmgr
100021 4 tcp 32769 nlockmgr
100005 1 udp 841 mountd
100005 1 tcp 844 mountd
100005 2 udp 841 mountd
100005 2 tcp 844 mountd
100005 3 udp 841 mountd
100005 3 tcp 844 mountd
oracle:/etc/fstab
===================================================
/dev/hda1 / ext3 defaults 1 1
none /dev/pts devpts mode=0620 0 0
/dev/scd0 /mnt/cdrom auto
user,iocharset=iso8859-1,codepage=850,noauto,ro,exec 0 0
/dev/hdb5 /mnt/windowsfonts ext3 defaults 1 2
none /proc proc defaults 0 0
/dev/hda6 /usr ext3 defaults 1 2
/dev/hda7 /var ext3 defaults 1 2
/dev/hda8 /var/www ext3 defaults 1 2
/dev/hda5 swap swap defaults 0 0
/dev/hdb1 /home ext3 defaults 1 2
#NFS-mounted partition on "tiny", read-only
#tiny.hallmarc.net:/windows /var/www/tiny nfs ro,auto,user
0 0
#NFS-mounted partition on "tiny", read-write
tiny.hallmarc.net:/windows /var/www/tiny nfs rw,auto,user
0 0
===================================================
oracle:/etc/rpc (relevant portions)
===================================================
#ident "@(#)rpc 1.11 95/07/14 SMI" /* SVr4.0 1.2 */
#
# rpc
#
portmapper 100000 portmap sunrpc rpcbind
rusersd 100002 rusers
nfs 100003 nfsprog
mountd 100005 mount showmount
nfs_acl 100227
===================================================
oracle:/etc/httpd/conf/vhosts/Vhosts.conf (relevant portions)
===================================================
<Directory /var/www/html/vhosts/hallmarc/html/tiny>
Options Indexes FollowSymLinks MultiViews
Order allow,deny
Allow from 192.168.0.
# Allow from MasterCard
Allow from 12.22.156.
</Directory>
===================================================
--
Marc Elliot Hall
621 River Moss Drive
St. Peters, MO 63376
www.hallmarc.net
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