Linux could write to read only files on FreeBSD NFS server

[Martin Simmons]

>>>>> On Thu, 27 Feb 2020 15:39:37 -0800, Alan Batie said:
> 
> That makes no difference:
> 
> <zmail03-admin.peak.org> [117] $ sh -x ~/nfst
> + cat /etc/redhat-release
> CentOS release 6.10 (Final)
> + df .
> Filesystem            1K-blocks     Used  Available Use% Mounted on
> zbackups02.peak.org:/zbackups/zmail03-admin
>                      5027215872 91682304 4935533568   2% /zbackups
> + rm -f x
> + touch x
> + chmod 444 x
> + ls -l x
> -r--r--r--. 1 alan root 0 Feb 27 15:38 x
> + echo foo
> /home/alan/nfst: line 9: x: Permission denied
> + cat x
> <zmail03-admin.peak.org> [118] $

Is this mounted with nfs version 3?

I'm mounting with version 3 and also get Permission denied from CentOS release
6.10 (Final).

__Martin