On Sun, 21 Feb 2021 at 12:46, Jerome Lille <jerome.lille@xxxxxxxxxx> wrote:
I tried to simply change type from nfs to nfs4 in the fstab in the
client. Unfortunately I then get the response
mount.nfs4: access denied by server while mounting ...
There is nothing in the server logs about this. And it is not the
firewall, because even when I turned it off, I get the same access
denied.
Anything else I have to change?
My exportfs is very simple, just
/path/to/export client(rw)
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 for explanation
and some diagnostic tests. My take on diagnostics is:
1) find the ports used for nfs4 tcp:
rpcinfo -p <server_IP> | awk '/ 4 /'
100000 4 tcp 111 portmapper
100000 4 udp 111 portmapper
100003 4 tcp 2049 nfs
100021 4 udp 35759 nlockmgr
100021 4 tcp 38583 nlockmgr
2) use telnet on the client to verify that you can connect to ports
111 and 2049 on the server:
% telnet <server_IP> 111 Trying <server_IP> ... Connected to <server_IP>. Escape character is '^]'. ^] telnet> quit Connection closed. % telnet <server_IP> 2049 Trying <server_IP>... Connected to <server_IP>. Escape character is '^]'. ^] telnet> quit Connection closed.
3. verify the exported filesystems:
% showmount -e <server_IP>
Export list for <server_IP>: /path/to/export client
Fedora 33 doesn't appear to need the "insecure" option. For CentOS7, see
George N. White III
_______________________________________________ users mailing list -- users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to users-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/users@xxxxxxxxxxxxxxxxxxxxxxx Do not reply to spam on the list, report it: https://pagure.io/fedora-infrastructure
