Re: [gentoo-user] NFS setup

[Adam Carter <adamcarter3@gmail.com>]

[-- Attachment #1: Type: text/plain, Size: 1190 bytes --]

On Sun, Aug 18, 2019 at 7:11 PM Peter Humphrey <peter@prh.myzen.co.uk>
wrote:

> On Sunday, 18 August 2019 09:30:36 BST Adam Carter wrote:
>
> >  Is the output of 'mount | grep nfs' the same on the two client machines?
>
> $ mount | grep nfs
> nfsd on /proc/fs/nfsd type nfsd (rw,nosuid,nodev,noexec,relatime)
>
>
nfs4 requires less ports than nfs3, just 2049 and something for mountd
(IIRC). Try using nfs4 and setting up the firewall for 2049 and 32767 from
your OPTS_RPC_MOUNTD="-p 32767" setting. From tcpdump, where .2 is the
client and .250 is the server;
192.168.1.2.949 > 192.168.1.250.2049: Flags [S]
but the other session is
192.168.1.250.730 > 192.168.1.2.40895: Flags [S]
ie a low port on the nfs server makes a connection back to the client, so
its quite unconventional

FYI, here's what one of mine looks like
$ mount | grep nfs
192.168.1.250:/export/public on /mnt/public type nfs4
(ro,noatime,vers=4.0,rsize=1048576,wsize=1048576,namlen=255,soft,proto=tcp,timeo=600,retrans=2,sec=sys,clientaddr=192.168.1.251,local_lock=none,addr=192.168.1.250,_netdev)

$ grep nfs /etc/fstab
192.168.1.250:/export/public    /mnt/public        nfs4
 ro,_netdev,vers=4.0,soft,noatime     0 0

[-- Attachment #2: Type: text/html, Size: 1743 bytes --]