Kami mendapati error pada server nfs “mount.nfs: Operation not permitted” kemudian di log error “ rpc.mountd[7968]: refused mount request from 157.245.206.9 for /xxxx/xxxdts (/xxxx/xxxdts): illegal port 24479”

Solusinya menambahkan “insecure” pada /etc/exports

/xxxx/xxxxdts  157.245.206.9(rw,sync,no_root_squash,no_all_squash,insecure)

silahkan mount ulang.

Insecure ini artinya menggunakan port diatas port standar Penjelasan ada disini https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/6/html/security_guide/sect-security_guide-securing_nfs-mount_options