> On Thu, 29 Dec 2005 10:48:13 -0600, Charles Howse wrote:
>
>>> On Wed, 28 Dec 2005 21:33:57 -0600, Charles Howse wrote:
>>>
>>>>> 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,
>>>>>> Charles
>>>>>
>>>>>
>>>>> 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.
>>>>
>>>> Thank you all very kindly for the suggestions.
>>>> The solution to the problem was the lack of the 'insecure' export option in
>>>> /etc/exports:
>>>> /home larry(rw,insecure,sync)
>>>>
>>>> I discovered it by tailing /var/log/messages:
>>>> Dec 28 15:44:00 shemp rpc.mountd: authenticated mount request from
>>>> larry:982
>>>> for /home (/home)
>>>> Dec 28 15:44:00 shemp kernel: nfsd: request from insecure port
>>>> (192.168.254.3:50646)!
>>>>
>>>> Everything works now. Thanks again.
>>>> Look for my new thread on discussing why questions to mailing lists and
>>>> usenet groups don't get answered.
>>>
>>> Strange, I don't have insecure in my /etc/exports on the nfs server:
>>>
>>> /opt 192.168.2.0/24(rw,sync)
>>> /home 192.168.2.0/24(rw,sync)
>>>
>>> and it still works. And I'm all the more surprised knowing how the default
>>> iptables rules are set on FC4. But maybe you already had the firewall set
>>> up to allow nfs traffic and the auxiliary nfs services running on fixed
>>> ports.
>>
>> Did I mention that I turned iptables off? Didn't even check the ruleset,
>> just turned it off.
>> Also made sure that selinux was disabled.
>
> I don't think you did. Turning off the firewall is not a permanent
> solution. Does it work if you turn it back on?
>
>>
>>> Reading the exports man page I see that the secure option is on by
>>> default, which requires that nfs connections be made from ports < 1024.
>>> Checking this with netstat on my nfs server I do see connections
>>> originating on ports 800 and 799, so maybe that's the default behavior
>>> of FC4 nfs clients. Or maybe I just got lucky.
>>>
>>> Good to know about "insecure" though.
>>
>> It may have something to do with the request coming from the Mac...?
>> Maybe Mac's use insecure ports for nfs connections? Haven't looked into
>> making the Mac use a secure port for nfs.
>
> Out of curiosity, can you do a
>
> netstat -tupan
>
> on the FC4 nfs server while accessing the exported partition from the mac
> and see what port it's coming from?
Yes, it works with iptables started, but the only established connection I
see below, is me ssh'ing to the FC4 box to run those commands.
[root@shemp ~]# service iptables start
[root@shemp ~]# netstat -tupan
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address Foreign Address
State PID/Program name
tcp 0 0 0.0.0.0:2049 0.0.0.0:*
LISTEN -
tcp 0 0 0.0.0.0:32769 0.0.0.0:*
LISTEN 1348/rpc.statd
tcp 0 0 0.0.0.0:32774 0.0.0.0:*
LISTEN -
tcp 0 0 0.0.0.0:111 0.0.0.0:*
LISTEN 1330/portmap
tcp 0 0 0.0.0.0:628 0.0.0.0:*
LISTEN 1720/rpc.rquotad
tcp 0 0 127.0.0.1:631 0.0.0.0:*
LISTEN 1630/cupsd
tcp 0 0 127.0.0.1:25 0.0.0.0:*
LISTEN 1768/sendmail: acce
tcp 0 0 0.0.0.0:639 0.0.0.0:*
LISTEN 1732/rpc.mountd
tcp 0 0 :::110 :::*
LISTEN 1750/dovecot
tcp 0 0 :::22 :::*
LISTEN 1678/sshd
tcp 0 1440 ::ffff:192.168.254.5:22 ::ffff:192.168.254.3:52541
ESTABLISHED 8920/sshd: charles
udp 0 0 0.0.0.0:32768 0.0.0.0:*
1348/rpc.statd
udp 0 0 0.0.0.0:2049 0.0.0.0:*
-
udp 0 0 0.0.0.0:32769 0.0.0.0:*
-
udp 0 0 0.0.0.0:676 0.0.0.0:*
1348/rpc.statd
udp 0 0 0.0.0.0:111 0.0.0.0:*
1330/portmap
udp 0 0 0.0.0.0:625 0.0.0.0:*
1720/rpc.rquotad
udp 0 0 0.0.0.0:631 0.0.0.0:*
1630/cupsd
udp 0 0 192.168.254.5:123 0.0.0.0:*
1691/ntpd
udp 0 0 127.0.0.1:123 0.0.0.0:*
1691/ntpd
udp 0 0 0.0.0.0:123 0.0.0.0:*
1691/ntpd
udp 0 0 0.0.0.0:636 0.0.0.0:*
1732/rpc.mountd
udp 0 0 :::123 :::*
1691/ntpd
[root@shemp ~]#
