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Comment 5 Joe Pruett 2005-08-12 21:13:32 UTC ... e.g. – Caution: Using the -O mount option can put your system in a confusing state. NFS is a client and server architecture based protocol, developed by Sun Microsystems. (insecure is the export option). intr — Allows NFS requests to be interrupted if the server goes down or cannot be reached.. nfsvers=2 or nfsvers=3 — Specifies which version of the NFS protocol to use. server2 (10.43.138.2) We need the mount point, so I will create the mount point [root@server2 ~]# mkdir /tmp/logs. /mnt/DroboFS/Shares 192.168.1.150(rw,insecure) and then, on the NFS server, run: $ sudo exportfs -a Now when you mount the directory as a non-root user on the NFS client it will mount with the appropriate owner and group. Next mount the NFS file system from server1 on server2 [root@server2 ~]# mount -t nfs 10.43.138.1:/ISS /tmp/logs. You need to allow the client to access the server on the NFS port from (source port on the client) any port <=1024 to use NFS secure mount. A good reading about NFS security can be found here: Securing NFS Mount Options. To reject all NFS requests from nonreserved ports, you can enable the nfs.nfs_rootonly option. If no version is specified, NFS uses the highest supported version by the kernel and mount command. Local data hidden beneath an NFS mount point will not be backed up during regular system backups. The info on the wiki page appears to outdated, check the manpages for nfs and nfs.conf . On the NFS client host (e.g., 10.1.1.20), update /etc/fstab as … If you want to allow this on an export, you may do so with the “ insecure ” export option. – On HP-UX, the -O option is valid only for NFS-mounted file systems. It is good practice not to allow users to login to a server. In order to allow a regular user to mount NFS share, you can do the following. ... Linux clients may do this using the “ noresvport ” mount option. Most/normal nfs servers are firewalled; opening port 2049 for nfs … This tutorial, I will discuss the different NFS mount options you have to perform on nfs client. Verify if the NFS FS is mounted properly NFS-mounting accross a NAT router. This will ensure that no user without root privileges can forge NFS communications and access NFS ressources in a way not permitted. Vivek — there is a problem accessing a “normal” nfs server from osx if the mount option “-o resvport” is used on the osx client. This option is not supported with NFSv4 and should not be used. The -O option allows you to hide local data under an NFS mount point without receiving any warning. So to mount NFS manually we will execute below command on the client i.e. This is useful for hosts that run multiple NFS servers. Checking wiki and manpages indicate that you can assign port numbers on the server. 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