Hi Everyone,
I just figured this out, posting since it appears to be a FAQ.
Short answer: portmap must be listening to the _external_
(not loopback!!) interface.
Also sending this to the Linux NFS Howto author.
-------------------------------------------------------
I'm trying to setup NFS. The machines are on a LAN
using a D-Link 614+ router without any filtering
among LAN hosts.
When I type 'rpcinfo -p' on the server, the appropriate
daemons show up: portmapper, mountd, nfs.
When I type 'rpcinfo -p serverip' from the client I get this:
rpcinfo: can't contact portmapper:
RPC: Remote system error - Connection refused
Network connectivity okay:
* I can ping the server from the client.
* The client can also access the server's webserver.
* Iptables -L shows no filter rules on client nor server (all ACCEPT)
* Wireshark on the server shows that packets are arriving from
the client rpcinfo request.
* /etc/hosts.allow and /etc/hosts.deny are empty.
* /etc/exports contains only the one line:
/media clientip
Can anyone suggest what I can do to get the right
result from rpcinfo??
Answer:
server-$ ps ax | grep portmap
1234 /sbin/portmap -i 127.0.0.1
<ding!>
Yes, boys and girls. When debian starts portmap, it looks at
/etc/default/portmap. In my case, portmap had been configured
portmap to use the loopback interface, so it didn't see
packets coming from the network. Running the command
dpkg-reconfigure portmap
or simply commenting out the OPTIONS line in /etc/default/portmap
solves the problem. Of course it is necessary to
restart portmap and nfs-user-server (i.e. mountd and nfs.)
Happy holidays (and working networks!)
--
Joel Roth
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