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Re: mount nfs - Operation not permitted



On Wed, 28 Dec 2005 11:29:39 -0600, Charles Howse wrote:

> I'm sure this has been asked and answered hundreds of times, but I've been
> working on it for 2 days now, and can't resolve the issue.
> I'm trying to mount an nfs filesystem that lives on FC4 from my Macintosh
> across the home lan (machines are only 15' apart).  ;-)
> I can successfully mount nfs shares that live on the FreeBSD machine from
> the Mac, and can successfully ssh to the FC4 box from the Mac.
> 
> On FC4:
> [root shemp ~]# cat /etc/exports
> /disc2 moe(rw,sync) larry(ro,sync)
> /home  moe(rw) larry(ro)
> [root shemp ~]# cat /etc/hosts.allow
> #
> # hosts.allow   This file describes the names of the hosts which are
> #               allowed to use the local INET services, as decided
> #               by the '/usr/sbin/tcpd' server.
> #
> ALL: ALL
> [root shemp ~]# cat /etc/hosts.deny
> #
> # hosts.deny    This file describes the names of the hosts which are
> #               *not* allowed to use the local INET services, as decided
> #               by the '/usr/sbin/tcpd' server.
> #
> # The portmap line is redundant, but it is left to remind you that
> # the new secure portmap uses hosts.deny and hosts.allow.  In particular
> # you should know that NFS uses portmap!
> 
> [root shemp ~]# cat /proc/fs/nfs/exports
> # Version 1.1
> # Path Client(Flags) # IPs
> /home   larry(ro,root_squash,sync,wdelay)
> /disc2  larry(ro,root_squash,sync,wdelay)
> [root shemp ~]# cat /var/lib/nfs/xtab
> [root shemp ~]# exportfs -ra
> exportfs: /etc/exports [2]: No 'sync' or 'async' option specified for export
> "moe:/home".
>   Assuming default behaviour ('sync').
>   NOTE: this default has changed from previous versions
> 
> On the Mac:
> [charles larry:~]$ mount -t nfs shemp:/disc2 ~/mnt
> mount_nfs: /Users/charles/mnt: Operation not permitted
> [charles larry:~]$ mount -t nfs shemp:/home ~/mnt
> mount_nfs: /Users/charles/mnt: Operation not permitted
> 
> properties for ~/mnt on the Mac:
> 0 drwxr-xr-x    3 charles  charles    102 Nov 20 17:11 mnt/
> 
> My uid/gid are the same on both client and server...my username is the same
> on both machines, password is different.
> 
> Anybody have a clue?  I've read and read and Google'd and browsed till I'm
> blue in the face.
> Could this be a problem with (what is it...) "non-privileged ports"?
> 
> -- 
> Thanks,
> CharlesĀ 


I bet it's the firewall in FC4. Turn it off and see if nfs works. Then you
go from there. Besides the port 2049 (nfs) you need to have several other
ports open. The problem is those ports are not always the same, which is a
problem with the firewall.




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