Re: nfs client ownership

[bruce <badouglas@xxxxxxxxx>]

ok...

seem to have resolved this..

centos 6.8

running test master/client nfs

on the masterside:

change the  /etc/idmapd.conf
# The following should be set to the local NFSv4 domain name
# The default is the host's DNS domain name.
Domain = localdomain  <<<<<<

# The following is a comma-separated list of Kerberos realm
# names that should be considered to be equivalent to the
# local realm, such that <user>@REALM.A can be assumed to
# be the same user as <user>@REALM.B
# If not specified, the default local realm is the domain name,
# which defaults to the host's DNS domain name,
# translated to upper-case.
# Note that if this value is specified, the local realm name
# must be included in the list!
#Local-Realms =

[Mapping]

Nobody-User = crawl_user   <<<<<<<
Nobody-Group = crawl_user  <<<<<<<

.
.
.
=====================================

changed the user to the user i want

on both the master/client...

i set the user/group to the same id on both

usermod -u 600 user1

groupmod -g 600 user1

i then made sure the given dir on the master/client was "set"

client

chown crawl_user:crawl_user /dir1

master
chown crawl_user:crawl_user /dir1

on the master side...

made sure the nfs was reset..

service nfs restart

on the client...

umount /dir1

mount a ---- for the fstab

on the masterside,,

update the /etc/exports as required

on the client

update the /etc/fstab as required..

now.. .

on both the master/client for the nfs.. it appears that i have the file owner/perms..

On Fri, Jul 8, 2016 at 4:10 PM, bruce <badouglas@xxxxxxxxx> wrote:

arrrgghh..

as a drop/kick..

I went into the test master/client

-changed the uid/gid for the test user user1 to be 600

usermod

groupmod

i didn't reboot

i shut down the nfs on the master

i did an unmount umount on the client, followed by a mount -a to reinvoke the fstab

in the client fstab i have
#test to set the client nfs/mount
192.168.1.45:/cloud_crawl /cloud_crawl  nfs defaults 0 0  -o uid=600 -o gid=600

on remounting the nfs share...

i still have a different user.. the initial user..

thoughts??!!

On Fri, Jul 8, 2016 at 3:32 PM, bruce <badouglas@xxxxxxxxx> wrote:

Hey..

Yeah, I had seen a few articles that pointed to the idmapd as being a possible issue..

This is for a test internal -- 192.168.1.* group of 3-4 systems. So, there's no real domain, but ....

On Fri, Jul 8, 2016 at 2:20 PM, Tom Horsley <horsley1953@xxxxxxxxx> wrote:

On Fri, 8 Jul 2016 13:57:24 -0400
bruce wrote:

> I know, I could just chown, etc.. after the fact.. but I'd like to figure
> out how it should be done!!

I only know it is the most confusing NFS topic :-). It seems to work
OK if all the machines are getting their users from the same
source (NIS, LDAP, SSSD, something like that). There is some idmapd
thing that turns my brain to cheese when I try to read about it.

I have done desperate things like edit the /etc/idmapd.conf and
set Nobody-User and Nobody-Group to the user I happened to know
I wanted to own files because I could never get any other aspect
of idmapd to work :-(.
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