On 25/11/2020 09:40, Ed Greshko wrote:
Can you confirm that the NFS server is on a Centos7 system?

Is NFS-v3 required, or can you switch to NFS-v4?

FWIW, I installed a Centos7 VM.  And enabled nfs-server.service.  The server has the following:

[root@cos7 etc]# firewall-cmd --get-active-zones
public
  interfaces: eth0
[root@cos7 etc]# firewall-cmd --info-zone=public
public (active)
  target: default
  icmp-block-inversion: no
  interfaces: eth0
  sources:
  services: dhcpv6-client mountd nfs nfs3 rpc-bind ssh
  ports:
  protocols:
  masquerade: no
  forward-ports:
  source-ports:
  icmp-blocks:
  rich rules:

[root@cos7 etc]# cat exports
/home/egreshko  2001:b030:112f:2::0/64(rw,sync,insecure,no_root_squash,no_subtree_check)
/home/egreshko  192.168.0.0/16(rw,sync,insecure,no_root_squash,no_subtree_check)

On an F33 VM I have the following in /etc/fstab

#[2001:b030:112f:2::41]:/home/egreshko  /mnt nfs defaults  0 0
[2001:b030:112f:2::41]:/home/egreshko  /mnt nfs nfsvers=3,defaults  0 0

And, I am able to mount using either nfs-v3 or nfs-v4

Here is the V3 result

[root@f33k etc]# mount /mnt
[root@f33k etc]# df -T | grep greshko
[2001:b030:112f:2::41]:/home/egreshko nfs       29599744  5193472  24406272  18% /mnt

Here is the V4 result

[root@f33k etc]# mount /mnt
[root@f33k etc]# df -T | grep greshko
[2001:b030:112f:2::41]:/home/egreshko nfs4      29599744  5193472  24406272  18% /mnt


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