Re: [NFS] nfs-over-tcp still needs udp ports? (SLES 11)

[Frank Steiner <fsteiner-mail1-G0GEQqhI7DhYiKXMg8wJIg@public.gmane.org>]

Tom Talpey wrote

> The very best solution, by the way, would be to use NFSv4. It has no
> side protocols, and therefore no UDP issue. It does have a callback
> connection from the server to the client, but is done with TCP and is
> configurable.

I've indeed switched our through-firewall-nfsservers to NFSv4 and
the problems are gone. Thanks a lot for pointing me there!
I only open port 2049/tcp and everything works.

However, I still see blocked connections on the firewall, coming from
the NFS client to the NFS server: 
...PROTO=TCP SPT=55598 DPT=111...
rpcinfo tells me the portmapper is running at port 111 (udp and tcp).

I didn't find a clear statement when googling if that should happen
with NFSv4 or not. It doesn't seem to block the NFS share in any way,
at least as far as I can see. 

I wouldn't mind to open tcp port 111 to the NFS server. I'm just curios
if that behaviour is correct or not with NFSv4.

cu,
Frank

-- 
Dipl.-Inform. Frank Steiner   Web:  http://www.bio.ifi.lmu.de/~steiner/
Lehrstuhl f. Bioinformatik    Mail: http://www.bio.ifi.lmu.de/~steiner/m/
LMU, Amalienstr. 17           Phone: +49 89 2180-4049
80333 Muenchen, Germany       Fax:   +49 89 2180-99-4049
* Rekursion kann man erst verstehen, wenn man Rekursion verstanden hat. *


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