nfs (Network File System) created by Sun Microsystems. NFS allows a client system to access network files as if local.

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39 views

Is `ln` atomic and reliable on NFS? Could NFS replace GFS in this use case?

I have a cluster with a bunch of servers with a shared disk containing a GFS global file system that all nodes access simultaneously. Each node in the cluster run the same program (a shell script is ...
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2answers
196 views

No lockfile creation in NFS setup

I recently set up a new fileserver for our research group. The old one was running SuSE linux and, although small harddrives and a slow machine, worked fine. The clients are mostly Gentoo machines ...
4
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2answers
17 views

Is NFS sharing via a multi-home computer possible?

I have an nfs export on computer A that I need to mount on a computer B in a different network. I have a multihome computer C, that can provide the connectivity between A & B. All computers are ...
0
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1answer
373 views

NFS mount fails at boot time

I have the following in /etc/fstab on FreeBSD: venture:/usr/redacted /usr/local/redacted nfs rw 0 0 This fails during boot. However, after boot, the following command succeeds ...
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14 views

Running NFS server as ver 3

As NFS docu stands it is possible to run NFS serwer ver 4 as ver 3 from the boot. Just it is necessery to add such entries in /etc/defaults/nfs file: NFS_SERVER_VERSMAX=3 NFS_SERVER_VERSMIN=3 I ...
2
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1answer
894 views

NFS Mounting Error

From ServerA I shared directory /u001/app/oracle/FolderA and trying to mount this on SeverB under /media Contents of ServerA /etc/exports file /u001/app/oracle/FolderA ServerB(rw,sync) When I ...
2
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1answer
32 views

Is it possible for du to report significantly more disk in use than the mount point has available?

I ran into an interesting situation the other day. I have a 1TB NFS filesystem mounted on /backup. df reported approx 1TB total size, as expected. However, running du -csh . in the /backup/.snapshot ...
3
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1answer
237 views

Having trouble exporting FUSE via NFS

I've got a self-written FUSE file system I mount on my NFS server on mountpoint /export/example/mount. Then I export a parent directory of the FUSE via NFS. The /etc/exports contains the options ...
0
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1answer
35 views

“NFS <server> not responding still trying” error timestamp

Sometime while my putty session is connected to server, it gets this NFS error. Note the server is Solaris 11 based. NFS server <server> not responding still trying NFS server <server> ...
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3answers
198 views

NFS server on qemu guest

I need to know how I can mount block devices, placed on a qemu guest system, from host. So in this case we have NFS server placed on guest system and NFS client on the host's side. There are a lot ...
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0answers
52 views

Mounting NFS share from Linux client on Windows domain

I've got a client (Ubuntu 13.10) joined to a Windows domain through PBIS/Likewise, serving Samba shares and allowing domain users to login with domain credentials. Outside of the Windows domain, ...
26
votes
9answers
11k views

Correct locking in shell scripts?

Sometimes you have to make sure that only one instance of a shell script is running at the same time. For example a cron job which is executed via crond that does not provide locking on its own (e.g. ...
2
votes
1answer
209 views

NFS mount properties (options) in FreeBSD

I am trying to determine how to examine the actual properties of an NFS mount in FreeBSD. In CentOS (6.4 tested) one can cat /proc/mounts or execute nfsstat -m to determine all of the mount ...
2
votes
2answers
2k views

Pulseaudio failed to create secure directory in nfs share

My pulseaudio cannot run, because it attempts to create ~/.config/pulse under a different user. (probably pulse?). user@localhost ~$ pulseaudio E: [pulseaudio] core-util.c: Failed to create secure ...
1
vote
2answers
24 views

How to mount an remote filesystem with specifying a port number

I am trying to mount a director from another server on my server. For that, I have tested sudo mount -t nfs 11.11.11.111:/some_directory /mnt/test/ But the connections gets a timeout because on ...
4
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2answers
5k views

How to properly export and import NFS shares that have subdirectories as mount points also?

Server A exports directory /srv via NFS with option nohide. A subdirectory within /srv, /srv/foo, is a mount point for another location on the NFS server using --bind option, like server# mount ...
2
votes
2answers
2k views

NFS connection refused

I want to set up a filesharing server with NFS. But when I want to show the conetnts of export I get this: manuel@server ~ $ showmount clnt_create: RPC: Port mapper failure - Unable to receive: errno ...
0
votes
1answer
201 views

md5 or sha1 while copying a file

Is there a way in any linux distro to perform a md5sum or sha1 check while the file is being transferred from a local partition to an NFS one? Example: I have a NFS mounted drive and a very big file ...
0
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0answers
25 views

different loopback mounted volumes exported through NFS are seen as 1 by the client

I have a rather peculiar problem. I'm running 3.2.0-58-generic #88-Ubuntu (Ubuntu 12.04) and I have mouonted the following loopback devices: cat /proc/mounts | grep loop /dev/loop0 ...
0
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2answers
200 views

SSH connections not accepted after configuring NFS?

I have a couple of servers in a VPC in Amazon EC2. One of them acts as a NFS server, and one of them as a client. I recently noticed a problem in the client that after a reboot, it would reject all ...
2
votes
1answer
139 views

NFS Shares (Windows using FreeNFS but connecting on Linux)

I am using a "FreeNFS" on a Windows 8.1 machine and I set up a share I:\Library. I am currently allowing all clients and using ANSI encoding. My Linux box is actually a Raspberry Pi, using Raspbmc. I ...
2
votes
1answer
3k views

Why can I not chmod a file?

[nathanb@ka /x/sim/nathanb/nbsim1] ls -al ,nvram -rw-r--r-- 1 root root 2097152 Jul 5 2011 ,nvram [nathanb@ka /x/sim/nathanb/nbsim1] sudo chmod a+w ,nvram chmod: changing permissions of ...
1
vote
1answer
76 views

Fatal: module nfs not found

I am setting up a new NFS client on a LAN that has a working NFS server (Ubuntu 12.04) running nfs4. The other clients all work as expected. On this new client I'm running ChrUbuntu with kernel 3.4.0 ...
3
votes
1answer
75 views

NFS partition mounted as read only

(Disclaimer: I've read "NFS sharing is read only" and I think it's not the same problem) I have just setup NFS on my raspberry (Raspbian) and I'm trying to access it from OSX. So far so good, I can ...
5
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3answers
345 views

Why does this executable still execute after I deleted it?

I deleted the executable, so why is it still running? root@raspberrypi:/test# ls -la total 11096 drwxrwxrwx 2 pi pi 4096 Mar 12 18:26 . drwxrwxr-x 11 pi pi 4096 Feb 28 13:50 .. -rwxrw-rw- 1 ...
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0answers
27 views

Problem with NFS after changing the IP address to static

I have a NFS server from which I mount the /home directories to the remaining NFS clients in the lab. The NFS server is xxx3 which has all the home directories for the remaining machines. The ...
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0answers
27 views

Should rpc.statd write anything into wtmp?

On several linux machines (some old custom variant of gentoo) I have huge wtmp files, up to gigabyte in size. After some experiments I know that there is rpc.statd daemon running on all servers and ...
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53 views

NFSv4 which “domain” to put in idmapd.conf?

I'm using NFSv4 but suddenly when the NFS Server got rebooted, all the files on the Clients are having nobody ownerships after the Server is booted and started its whatever services again. Then I ...
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1answer
70 views

NFS Server changes in /etc/exports file need Service Restart?

I have NFSv4 Server (on RHELv6.4) and NFS Clients on (CentOSv6.4). Let's say in /etc/exports: /shares/website1 <ip-client-1>(rw,sync,no_subtree_check,no_root_squash) /shares/website2 ...
2
votes
1answer
102 views

Proxmox Master Node crashes

I've inadvertently discovered a Proxmox bug. I run a personal cluster of 4 nodes (a technology lab for giggles and gags). Each node has a Dell Perc 5i and 4 HDDs in RAID 10. The standard Proxmox ...
2
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1answer
63 views

How to enable NFS4 protocol

I have found nothing that could help me with enabling NSF4 protocol rpcinfo -u localhost nfs program 100003 version 2 ready and waiting program 100003 version 3 ready and waiting How can I add ...
1
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1answer
252 views

Transmission client can't access mounted NFS share

I set up transmission-daemon on my Scientific Linux 6.3 machine to download files to a mounted NFS share (mounted during boot via /etc/fstab). The directory that the NFS share is mounted to was ...
2
votes
2answers
48 views

How to determine if NFS mount is mounted as v3 or v4?

Red Hat 5/6 when I do mount it says type nfs, I would like to know how to determine version if it isn't listed in mount options or fstab. Please don't say remount it with the version option, I want ...
2
votes
1answer
79 views

NFS Ownership/Permissions

I'm trying to get NFS working properly on a DD-WRT install using OTRW2. I can see and mount the share from the client. But when I do, the mounted folder changes it's owner to root:root and so my ...
3
votes
2answers
141 views

Wait for move directory to be completed before attempting to delete it

I have a process running on one computer that spawns simulations by writing the simulation data to directory pre/id. Worker processes then copy a simulation from pre to a local disk, which can be on a ...
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3answers
350 views

NFS Automatic Fail-over or Load-balanced or Clustering?

I've been using NFS (and it is the only one i know well in Network Files) for a few years. But still can not able to find out .. How to make NFS Servers in Clustered Design (or Load-balanced?) Or at ...
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2answers
55 views

Is there any shared filesystem based on public key authentication?

I normally use NFS, however I am not so comfortable with the security as basically a root user can just change his UID to an arbitrarily one in order to obtain access to a shared folder. Moreover, ...
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65 views

How to setup anonymous NFS correctly

I set up an NFS server on Ubuntu Server 12.04 for my linux based DVB-S receiver (Spark 7162) Unfortunately the receiver is only able to connect anonymously. Directories are created but can not be ...
0
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1answer
61 views

NFS: failed to create MNT RPC client status = -101

I am trying for network file system (NFS) booting between two systems. I am using dhcp server to assign IP-address for client. And my kernel and root file system are present in server. My client is ...
3
votes
2answers
87 views

Exposing NFS mount via USB

I know enough linux to be dangerous - apologies if my terminology is incorrect. I have an electronic drumkit that has USB into which I can plug a flash drive with MP3s on it. The drumkit has no ...
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0answers
56 views

How do you setup user quotas for disk storage?

The lpic exam shows how to setup user disk quotas in the /etc/fstab. Source http://en.wikibooks.org/wiki/LPI_Linux_Certification/Managing_Disk_Quota Example /dev/fd0 /home/yann/mnt auto ...
2
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3answers
736 views

delayed write in operating file system

I read in some papers about NFS and Sprite that a system can use delayed writes when a client writes something to the server. I would like to know what is the purpose of this technique?
2
votes
2answers
134 views

Can you restrict the number of inodes a user can access?

It appears that it is possible on a network mount to set a quota on how much space a user can consume. # edquota ramesh Disk quotas for user ramesh (uid 500): Filesystem blocks ...
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30 views

How do I prevent access to a sub-directory on an NFS share?

I am trying to prevent access to a subdirectory on an NFS share. The directory structure is this: Downloads TV Software Books My /etc/exports file currently has this line: /Downloads ...
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34 views

Issues with sharing partitions using NFS

We have 3 servers: Server1, Server2 and Server3, all in the same network. On Server2 I'm sharing a partition, say /part1, to Server 3 using NFS. Here's the /etc/exports on Server2: /part1 Server3(rw) ...
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33 views

what yum repo do I need for nfs-utils

I downloaded yum but have 0 repos. What yum repo do I need for nfs-utils so I can do this tutoial: http://www.techrepublic.com/blog/linux-and-open-source/set-up-easy-file-sharing-with-nfs-on-linux/#. ...
6
votes
1answer
2k views

How can I do NFSv4 UID mapping across systems with UID mismatches?

I am working in a lab with three Ubuntu systems, and I would like to cross-mount some filesystems via NFS. However, while the systems have some of the same usernames, the UIDs and GIDs don't match, ...
2
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0answers
80 views

Recommendations for replacing a GFS cluster?

I have a couple of CentOS GFS-clusters (GFS as in Global File System) using a shared disk in a Fibre Channel SAN. They are mature now, and the time has come to start planning for their replacement. ...
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0answers
94 views

NFS File Sync on Mount

I have an ext4 hard drive mounted and working correctly except, if I add a file/folder to the mount on the server side, I can't see the changes on the client side unless I reboot the client. i.e. The ...
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109 views

Unable to mount the file system from server to client while booting through network

I want a client which loads a kernel and a file system from the server through network. Until now, on the server side, I changed the settings in /etc/dhcp/dhcpd.conf to get an ip-address to the ...