Title says it. mount is occasionally making NFS mount/unmount requests from insecure ports. I believe the issue is being caused by all of the secure ports being stuck in TIME_WAIT after periods of very high mounting activity (amd). Is there any way to change this behavior? I don't want requests being sent from insecure ports, whether there are available secure ports or not. I'd rather the mount hang while it waits for a secure port. Allowing requests from insecure ports on the NFS servers is not an option.
I didn't see anything in the man pages for mount, nfs, or mount.nfs for controlling this. To alleviate the issue, I tried net.ipv4.tcp_tw_reuse=1, but it didn't seem to help.
Thanks in advance.