Quoting Ed Greshko <Ed.Greshko@xxxxxxxxxxx>:
On 12/24/13 08:15, Robert P. J. Day wrote:
Quoting Ed Greshko <Ed.Greshko@xxxxxxxxxxx>:
On 12/24/13 07:16, Robert P. J. Day wrote:
Quoting Tom H <tomh0665@xxxxxxxxx>:
On Fri, Dec 20, 2013 at 2:34 PM, Robert P. J. Day
<rpjday@xxxxxxxxxxxxxx> wrote:
a long, long time ago, i reported an apparent glitch with NFS on
fedora:
https://lists.fedoraproject.org/pipermail/users/2010-January/097465.html
in that, at the time, it *appeared* that you couldn't set up
NFS so that *only* version 4 was running. before i start messing
with this again, anyone know whether that's changed? that is,
is it possible to set up a network in which only NFSv4 is running,
and no earlier versions are supported? thanks.
It's been possible to run nfsv4-only nfs for a long time, with only
port 2049 being let through the firewall. It only appears that you
can't because because rpc.mountd has to run on the server but it's
only involved in the exporting and not the mounting.
how does one configure fedora 20 to support only NFSv4? i'm used to
mucking with /etc/sysconfig/nfs in earlier versions of RH, and tweaking
the variables MOUNTD_NFS_V* and RPCNFSDARGS. i don't see those vars
in fedora 20 and, according to "rpcinfo -p", i'm currently supporting
NFS versions both 3 and 4. so how does one turn off NFSv3? thanks.
In /etc/sysconfig/nfs
# Optional arguments passed to rpc.nfsd. See rpc.nfsd(8)
RPCNFSDARGS=""
man 8 rpc.nfsd
-N or --no-nfs-version vers
This option can be used to request that rpc.nfsd
does not offer
certain versions of NFS. The current version of
rpc.nfsd can sup‐
port NFS versions 2,3,4 and the newer version 4.1.
Would seem to be what you are searching.
i tried that and it didn't seem to work, in the sense that when i
ran "rpcinfo -p" to verify the result, here's part of the output:
100003 3 tcp 2049 nfs
100227 3 tcp 2049 nfs_acl
100003 3 udp 2049 nfs
100227 3 udp 2049 nfs_acl
100003 4 tcp 2049 nfs
100003 4 udp 2049 nfs
so isn't that telling me i still have both versions 3 and 4? here's
the line i added to the file:
RPCNFSDARGS="-N 2 -N 3"
Port 2049 is used by V4. I don't think V3 or V2 uses it....
I would add to the parameters -U to disable UDP and then attempt a
mount while specifying that nfs version 3 be used. That will verify
it.
as a quick test, i added "-U" but the only change was that
"rpcinfo -p" showed me that UDP was no longer being accepted
for v4 only:
100003 3 tcp 2049 nfs
100227 3 tcp 2049 nfs_acl
100003 3 udp 2049 nfs
100227 3 udp 2049 nfs_acl
100003 4 tcp 2049 nfs
to match what i see under RHEL, i was hoping to see *all*
references to NFSv3 disappear from the output of that command.
i'll test further later.
rday
--
users mailing list
users@xxxxxxxxxxxxxxxxxxxxxxx
To unsubscribe or change subscription options:
https://admin.fedoraproject.org/mailman/listinfo/users
Fedora Code of Conduct: http://fedoraproject.org/code-of-conduct
Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines
Have a question? Ask away: http://ask.fedoraproject.org
