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

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How many authorized_keys can/should be set up in SSHD?

I'm following a FreeNX install wiki page for ArchLinux. Right now I'm setting the SSHD parameter for "AuthorizedKeysfIle". And this brings up the question, How many authorized_keys can/should be set ...
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1answer
1k views

Using tcpdump to extract NFS RPC contents

Fairly simple question... I'm running tcpdump and trying to analyze the contents of the TCP packets between server/client. I see the "GETATTR" RPC being received, which is great! However, I want to ...
2
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2answers
998 views

`chattr +i` error on NFS

I'm trying to secure my authorized_keys file to prevent it from being modified. I run this: [root@localhost]# chattr +i authorized_keys chattr: Inappropriate ioctl for device while reading flags on ...
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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 ...
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1answer
150 views

Odd behavior with a gzip compressed file

I've got a very bizarre issue occurring with a Redhat system. We have a Gzip-compressed TAR file that contains hundreds of small text files with absolute paths. It's only 8 MB. We copy this file to a ...
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1answer
895 views

Is there any way to check df -k hanging for nfs mount issues?

I am trying to write a script for such failure scenarios. In a scenario where maybe, if remote connection is lost, df waits for the remote server to respond (looks like df is hanging). I know I could ...
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234 views

NFS vs SSH -YC - Which one is faster?

I frequently need to remotely run some programs (such as matlab) installed on my server. I used to mount the required nfs directories on my local machine (via etc/fstab). Recently, for some reasons, I ...
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1answer
1k views

Copying Linux NFS files to a standard consumer external hard drive

I am a graduate student and a relative Linux novice. My institution has an in-house Linux cluster on which I run many scientific simulations. I have a Windows desktop computer from which I access ...
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2answers
540 views

Directory “not found” on HP-UX for NFS mount point

On an HP-UX B.11.31 that mount via NFS a remote disk using mount point /BK_RESTORE, I would like to access a sub directory with oracle user, but I cannot even if permissions are correct. Using a ...
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1answer
2k views

Why are inotify events different on an NFS mount?

Some time ago I noticed that the events reported by inotify are different when the file is saved to an NFS mount vs. a local file system. Shouldn't the underlying VFS provide a uniform view of file ...
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1answer
1k views

Anyway to read NFS vhdx from Hyper-V under Windows?

Quick of it is: I have an Ubuntu 12.10 server instance, running under Hyper-V on Win 8. It has worked wonderfully for about 4 months. Now, when I need to pull data back to Windows, inexplicably, it ...
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1answer
3k views

NFS permission denied

When I configure NFS and create a file on the client NFS shared dir, I get the following message: permission denied. My configuration: configuration nfs server ...
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2answers
861 views

wheezy: nis/autofs doesn't work

I have a few computers with debian lenny on them. One of them has a nis server: 193.167.1.75 I can automount my home directory when I log in: >ssh 193.167.1.80 -l myuser >pwd /home/nis/myuser ...
3
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1answer
37 views

NFS does not store tails of files when program crashes

Program is running in parallel on multiple processors and is writing logs to a central host via NFS under RH7.3 or SUSE 11.3. If program crashes or hangs then tails of log files are lost and we lack ...
2
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1answer
180 views

How to keep track of which files are currently growing in directory

I have a local filesystem which is exported rw with nfs (very big xfs partition). Somewhere (I cannot determine who or what remote process) files are being written, created new or updated appending ...
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2answers
72 views

Test if a file is on NFS?

Is there a simple test to determine if a file is on an NFS mount? (Or maybe more generally, what type of filesystem a file lives on?) I am imagining some ugly prefix matching against fstab...
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3answers
539 views

NFS server dropped connection momentarily, now df, ls, and umount all hang

I have this fstab entry: machine.local:/srv/files /res/files nfs defaults 0 0 It was working great until machine.local dropped the connection momentarily. Now, the share isn't accessible. df, ...
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1answer
2k views

Changing permissions on an NFS mount + sharing directories with a guest VM

I'm building a development environment where folders from a host environment (OSX) are mounted in VirtualBox VMs running Ubuntu guests. Our experience is that straightforward VirtualBox shared ...
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1answer
440 views

How can a non-root user check if a FS has been exported to a server?

Consider I am on server1 logged in as a non-root user. How do I check if a NAS FS has been exported onto the server SERVER1? I have already tried the below commands. bash-3.2$ dfshares SERVER1 nfs ...
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1answer
472 views

High availibility setup with NFS

Web hosting HA setup I have 5 servers: Server-1: Webhosting Controlpanel (192.168.1.1) Server-2: Load balancer [Haproxy] (Public IP:192.168.1.2 and Virtual IP:192.168.1.3) ...
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2answers
6k views

mount Linux NFS. rpc.statd is not running

I have Ubuntu 12.04 as the NFS server. The clients are Linux. My /etc/exports file has 1 line, /folderToExport *(rw,async,no_subtree_check) /etc/init.d/nfs-kernel-server status shows that the ...
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3answers
696 views

GDM hangs when home directory is inaccessible

I have setup a OpenSUSE 12.3 workstation with SSO through KRB5 and LDAP. This works pretty smoothly up to the point where GDM isn't very happy about that fact that it cannot access user's home ...
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3answers
260 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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2answers
3k views

Default directory permissions over NFS

I have two servers, client and server in fairly obvious roles: server hosts the NFS share and client has it mounted. There is a shared group among several users on client called shared which also ...
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2answers
235 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 ...
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1answer
1k views

Debian: Mounting NFS Volume at boot with fstab not working, How to change when this is attempted on boot

So there are a bunch of NICs and vlans on the server and after adding the last ones the auto mount of a network volume is not working. I can do it all right if i SSH in and use mount however it doesnt ...
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1answer
483 views

Transfer 150GB of files from an old MacBook Pro with Ubuntu 13.04 Live DVD

My girlfriend's old MacBook Pro 2009 (5,4) stopped working. I have tried several times to reinstall OS X, but could not do so. There appears to be something really really wrong with the OS. Since she ...
3
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1answer
306 views

Why do the nfs4 tutorials recommend to bind mount sub directories

All NFS4 tutorials I have encountered so far recommend bind mounting real directories into the export root. Is this a technical necessity? If I had a directory that's only meant to be exported, is it ...
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2answers
226 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 ...
2
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1answer
310 views

Error while mounting directory from host via NFS

I've been looking around the site but I couldn't find anyone with the same problem. On VirtualBox, I have a machine with IP *.28 and another one with IP *.20. The latter should mount a directory ...
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1answer
388 views

NFS server optimization for maximum performance

I'm looking for maximum of performance for a NFS mount. I'm on local network, it could be completly unsecure, the performance is the most important in my case. What I already found : In /etc/export ...
4
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1answer
226 views

how to prevent reboot being stopped by nfsmount?

I can't imagine there isn't a simple strategy to solve this issue of stale nfs handles preventing a machine from shutting down normally, but I'm not sure what that would be. It's pretty annoying to ...
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1answer
475 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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2answers
229 views

Writing a Linux file system for NFS

I want to write my own custom file system in Linux. Can I share it over standard NFS without making any changes to the local NFS server? If so what VFS APIs are required to be implemented by my file ...
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1answer
127 views

NFS configuration redhat6.3 64bit

I'm getting this error on the client: [root@localhost /]# mount -t nfs 192.168.18.144:/linuxcast-nfs /mnt/ mount: wrong fs type, bad option, bad superblock on 192.168.18.144:/linuxcast-nfs, ...
2
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1answer
188 views

What happens when I copy a file from one network location to another

Suppose I have three networked computers: A, B and C. A mounts a directory from B and from C. A/mnt/im-on-B/ A/mnt/im-on-C/ A then copies a file: cp /mnt/im-on-B/file ../im-on-C/ What happens ...
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2answers
1k views

Redhat: non-root user needs to copy files to a NFS share

Typically non-root users cannot mount directories. Running Redhat Have 6GB tar.gz (/dir/somefile.tar.gz) Need to move to a NFS share on another box (//somebox/somefolder/) We have no other access. ...
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1answer
364 views

Having owner access on files upon mounted NFS directory

I have a Linux RedHat server and a Solaris 10 client. I have mounted a directory which locates on the RedHat server, in the Solaris system with RW(read/write) option. I already have some directories ...
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1answer
183 views

How to add NFS options flag to anaconda?

These options work for Kickstart to load the install tree from NFS: The Fedora Kickstart documentation states nfs --server=nfsserver.example.com --dir=/tmp/install-tree ...
2
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1answer
5k views

NFS does not work. mount: wrong fs type, bad option, bad superblock

This is what I got on server: manuel@server ~ $ cat /etc/exports /var/share 192.168.178.20(rw, sync) manuel@server ~ $ cat /etc/hosts.allow portmap: 192.168.178.20 manuel@server /etc $ cat ...
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2answers
3k 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 ...
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1answer
271 views

Killed `rm` and `cp` on nfs share

I am just testing an rsnapshot installation on my laptop which should backup to a NAS mounted via nfs on my laptop. On one test rsnapshot died with a cp -al problem (i.e. a problem with hard links) ...
3
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2answers
2k views

How to exclude NFS directories with find?

I need to search for files that has no user OR no group. find / -nouser -o -nogroup I think this is OK. But, I don't want to search NFS shares. How can I exclude the NFS shares in the find ...
2
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1answer
119 views

What are processes “[123.45.78.901-ma]” on linux, where the number is an NFS server's IP address?

I am seeing processes on Linux with the name "[123.45.78.901-ma]", where the number is the IP address of our NFS server. Does anyone know what these processes are, where I can find out information ...
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2answers
2k views

Forcing Linux NFS client to reconnect to server after NFS is disconnected

Is there a way to force a Linux client to reconnect to a NFS server after it has lost its connection? The client eventually notices the server is back and resumes working just fine. I'm just ...
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2answers
2k views

Why do I get fsync() failed: Disk quota exceeded on my linux machine?

I get fsync() failed: Disk quota exceeded but when I use df -h and df -i there is enough space in all the folders. What can I do?
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1answer
228 views

Before mounting an NFS share, can the NFS client know if it's NFS v3 or v4?

The mount command in linux requires -t nfs4 in order to mount version 4 NFS shares, so I need to know beforehand which version it is.
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0answers
1k views

NFS sharing is read only

I have problem with NFS sharing. See my exports: /export 192.168.1.11(rw,fsid=0,insecure,no_subtree_check,sync) /export/share 192.168.1.12(rw,nohide,insecure,no_subtree_check,sync) From a client ...
0
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1answer
165 views

Can not mount NFS from server on local network

I set up my NFS server without doing any bigger changes in configuration files. After that I added these entries to /etc/exports(both paths are valid) on server(192.168.1.11): /export ...
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1answer
208 views

How do I ensure that only one instance of my ksh script runs on Solaris using NFS? [duplicate]

Possible Duplicate: What Unix commands can be used as a semaphore/lock? I have read many similar post and the solution seems to be to use flock. flock does not exist on my system and I ...