On Thu, 25 Feb 2021 at 14:03, Ed Greshko ed.greshko@greshko.com wrote:
On 26/02/2021 01:19, George N. White III wrote:
I haven't used CentOS7 for several years, so I was ignoring this thread in the hope others could answer.
My not very trustworthy memory is that "/etc/exports" on the server needs the "insecure" option for NFS4 to work, see: https://access.redhat.com/solutions/3773891 <
https://access.redhat.com/solutions/3773891%3E for explanation
and some diagnostic tests. My take on diagnostics is:
FWIW, "others" have tried changing
/home/egreshko 2001:b030:112f:2::0/64(rw,sync,insecure,no_root_squash,no_subtree_check)
to
/home/egreshko 2001:b030:112f:2::0/64(rw,sync,no_root_squash,no_subtree_check)
And the mount from an F33 system still succeeds.
The entry for "man exports":
secure This option requires that requests not using gss originate on an Internet port less than IPPORT_RESERVED (1024). This option is on by default. To turn it off, specify insecure. (NOTE: older kernels (before upstream kernel version 4.17) enforced this re‐ quirement on gss requests as well.)
/run/sysconfig/nfs-utils had: GSS_USE_PROXY="yes" -- wonder if GSS is somehow at play here?