David Kelly wrote:
On Thu, Jul 20, 2006 at 05:16:16PM +0200, David Landgren wrote:
On an old Redhat box (address 172.17.0.18), I'm trying to mount an NFS
export from a FreeBSD (5.2.1-RELEASE) box. Both machines are on the same
network segment, and neither have any onboard firewalling rules.
(I understand, from reading the handbook, that I should be using rpcbind
rather than portmap). This server has been an NFS server in the past, so
I know it worked at some point. I'm not sure if I'm missing a daemon in
the mix, or if there's something else I've overlooked.
Any clues will be most graciously received :)
For starters try "showmount -e the.freebsd.ip.address" on the Linux box
to see if the Linux box sees the NFS daemons on the FreeBSD machine.
# showmount -e 172.17.0.21
mount clntudp_create: RPC: Port mapper failure - RPC: Unable to receive
mountd needs to be running on the FreeBSD host (apparently yours is
running). When /etc/exports changes mountd needs to be informed:
kill -s HUP `cat /var/run/mountd.pid`
Yup, know about that.
Also at least in the past Linux distributions defaulted NFS to
non-reserved ports. Your Linux may not be talking to the same ports as
the FreeBSD machine is listening.
Let's have a look...
# nmap 172.17.0.21
Starting nmap V. 3.00 ( www.insecure.org/nmap/ )
Interesting ports on bechet.bpinet.com (172.17.0.21):
(The 1584 ports scanned but not shown below are in state: closed)
Port State Service
21/tcp open ftp
22/tcp open ssh
25/tcp open smtp
37/tcp open time
80/tcp open http
199/tcp open smux
443/tcp open https
801/tcp open device
901/tcp open samba-swat
1011/tcp open unknown
1020/tcp open unknown
2049/tcp open nfs
3306/tcp open mysql
5308/tcp open cfengine
5432/tcp open postgres
5999/tcp open ncd-conf
8080/tcp open http-proxy
My god there's a lot of crap on that box! Still, looks like NFS is
running. And according to the man page of the linux box:
The numeric value of the port to connect to the NFS
server on. If the port number is 0 (the default) then
query the remote host's portmapper for the port number
to use. If the remote hostâs NFS daemon is not regis-
tered with its portmapper, the standard NFS port number
2049 is used instead.
So that sounds about right. I tried adding port=2049 explictly to the
mount command, but same error: "Connection refused"
Well, thanks for your help. Beats me what I've done wrong.
Much of the propaganda that passes for news in our own society is given
to immobilising and pacifying people and diverting them from the idea
that they can confront power. -- John Pilger
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