On 2/18/21 8:38 AM, Jerome Lille wrote:
But as I said the nfs shares seem to work fine, I can read and write to
files on them.
Yep, everything will look fine until an application on your client tries
to lock a file, and then it will hang forever. Locking files during
editing is pretty common, so I'm surprised you haven't seen problems yet.
You should do one of:
1: Update the client fstab and use NFSv4 instead of v3. In most cases,
this will be the simplest and best fix.
2: Update the server firewall rules to allow all traffic from clients.
Not recommended.
3: Update /etc/sysconfig/nfs and configure the system to used fixed
ports for NFS services. Update your firewall rules to allow clients to
reach those ports. More work than #2, but maintains security. This
guide should help:
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/6/html/storage_administration_guide/s2-nfs-nfs-firewall-config
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