[mythtv-users] nfs related frontend issues

Rich West Rich.West at wesmo.com
Tue Mar 20 22:14:24 UTC 2007


R. G. Newbury wrote:
> Blammo wrote:
>   
>> On 3/20/07, John Goulah <jgoulah at gmail.com> wrote:
>>     
>>> Hi,
>>>
>>>  I had recently switched all of my data partitions to an NFS mounted
>>> filesystem.  Everything works fine, until the system is sitting for about a
>>> day or so, and then when I try to go into the videos they are gone, and I
>>> have to restart the frontend.  A similar problem happens with the music
>>> portion, except it just freezes when I click it.  Again restarting the
>>> frontend solves the problem. The NFS partitions stay mounted (I dont have to
>>> remount anything).  Is there anything I can do to resolve this, or ideas on
>>> where to look for the problem?
>>>       
>> You might check your firewall setup on both backend and frontend. I
>> had an issue on a system I set up a few months ago, where iptables
>> kept killing NFS sessions after a "idle timeout".
>>
>> You don't say what OS you're running, but if you're running a
>> redhat-derivitive (centos, rhel, fedora etc) you should be able to
>> stop the iptables service (as root) by typing "service iptables stop".
>> Give it 24 hours and see if that helps.
>>
>> To stop the service from starting on boot (again on a redhat) you can
>> type "chkconfig iptables off"
>>
>>     
>
> Better yet, if you are running Fedora (or RedHat derived) run the 
> program 'lokkit' and select the box to allow NFS. Lokkit is a small 
> program to configure the firewall/iptables in Fedora.
>
>
> If you find that you cannot mount your NFS share, and get a 'permission 
> denied' error, but that you can *then* get in, if you run 'iptables -F' 
> on the NFS server end of the pair, then your firewall is set to refuse 
> NFS access. Use lokkit.
>
> You should NOT just turn of iptables: That IS your firewall!

Off Topic, but if you are within your own internal (aka private) network 
with a firewall between your network and the rest of the internet, there 
is no need for individual firewalls on individual machines.

-Rich


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