Network File System (NFS) is a network file system protocol originally developed by Sun Micro systems in 1984, allowing a user on a client computer to access files over a network in a manner similar to how local storage is accessed. NFS, like many other protocols, builds on the Open Network ...

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19 views

Force Linux to reload passwords [closed]

I have a small cluster of Linux computers. To make administering them easier, they share via NFS the /home directory of the master computer, as well as the files that describe the usernames and ...
0
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0answers
14 views

Encrypted network share for multiple users

I have the following scenario: 100GB of data 5 users should be mounted on two different servers the servers are all running Ubuntu users are accessing/writing to it at the same time (not the same ...
1
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0answers
20 views

R packages - Should I mount /usr/share/R/library

We have a small cluster of linux machines (~15) with up to 20 users. Over the last few years we have written a few basic R scripts for doing basic statistical analysis. The problem I have had as a ...
0
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0answers
7 views

NIS client is not able to change password using yppasswd in OpenSuse 13.2?

NIS Server - OpenSuse 12.1 NIS Clients - OpenSuse 13.2 At NIS Client: nisuser@opensuse13.2:~> yppasswd yppasswd is deprecated, use /usr/bin/passwd instead Changing password for nisuser. Old ...
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15 views

How can I test whether fcntl() locks work with my NFS setup?

From the SQLite FAQ: Can multiple applications or multiple instances of the same application access a single database file at the same time? … SQLite uses reader/writer locks to ...
2
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1answer
23 views

Inconsistent file content on NFS

We use NFS to access (read/write) data in our scientific research group. After a recent switch from openSUSE 11.3 to 12.3, we frequently encounter a problem where a file is created and written to in ...
0
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2answers
16 views

Unreliable NFS with large number files in a directory

I have a NFS directory mounted on a host. That directory has 0.6 million log files now, and will have 1.6 million eventually. The files are small, most of them are less than 1MB. The problem is that ...
0
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50 views

NFS mount on Windows 8 non-enterprise

I've read the answers to a similar question, but I'd like to ask it here with a very narrow scope. Assuming Windows 8, not enterprise (which means no services for unix applications providing native ...
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1answer
17 views

XEN Server NFS SR read only

We have two Boxes running XEN XCP. One SR is located on an FreeNAS 9 NFS share. For some reason the NFS share turned read only which is pretty bad for one VM whose VDIs are located on the NFS SR. I ...
2
votes
2answers
56 views

Is there a valid stability argument against NFS?

We are adding a feature to our web app where uploaded files (to app servers) are processed by background workers (other machines). The nature of the application means these files stick around for a ...
0
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1answer
12 views

nfs, mounted loop devices

I'm usign a Debian server (Jessie) as an NFS server. All exported NFS-shares are mounted filesystems using loop devices. They are mounted in the fstab without any special options & the mountpoints ...
0
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1answer
20 views

Windows NFS client keeps writing read-only with on NFS server with squash_all

We have a Debian 8 with an NFS server exported with "/client-share *(rw,sync,no_subtree_check,all_squash,anonuid=1000,anongid=1000)" that works just fine when transferring files from a Windows ...
2
votes
2answers
57 views

How to automate directory creation on NFS-Server?

I created and configured a test-environment of 3 virtual machines: A FreeIPA server which provides krb5-authentication A NFS-Server using server 1 to secure itself A client that automounts home ...
3
votes
1answer
77 views

NFSv3 client differences in read/write performance

I'm taking care of a few servers that make relatively heavy use of a NFS filer. At crunch time a single server sends about 2k reads + 2k writes per sec to the filer. According to nfsiostat at these ...
1
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0answers
32 views

Windows NFS Share: Allow Linux uids

I have a couple of NFS shares set up on my Windows Server 2012 box, but they only allow Linux users with uid 0 to access them (aka the root user). How and where do I specify that I, for example, want ...
1
vote
1answer
40 views

Unable to mount NFS share

I have 3 servers : Server1 : Stores my data. Had a exported folder. Debian 7 - Linux 3.2.0-4-amd64 on x86_64 Server2 : "Client" where is the Server1 exported folder is mounted. Debian 7 - Linux ...
2
votes
2answers
31 views

Restrict access to .ssh folder over network shares

I run a small server running Ubuntu Server 14.04 and have just noticed that the .ssh folder in the users home directory is accessible via SMB and NFS. The SMB and NFS are both secured, however I ...
1
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3answers
63 views

Finding users responsible for thrashing an NFS mount

I have a large multi user system, NFS mounting a large piece of shared storage. I can identify the source of all my network traffic - narrowing it down to a particular host - thanks to nfsstat. ...
1
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0answers
26 views

Why is nfs server not seeing resized filesystem size?

On the NFS server, when I extend the the logical volume (using lvm2) and subsequently the ext4 fs on top of it (using resize2fs), I'm able to see the new size locally with df. But the NFS clients ...
0
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1answer
92 views

Mount NFS Share Windows Server 2012

I'm trying to mount an NFS share setup on my Synology Server to my Windows Server 2012 server. Here's what I've tried: net use Z: \[ip address][share folder] /user:xxxxx [password]' mount ...
1
vote
1answer
38 views

Can I prevent exportfs from from breaking ZFS sharenfs exports?

I'm using ZFS on Linux as a fileserver running Ubuntu Server 14.04 LTS. The ZFS pool shares a number of datasets using it's sharenfs property. Outside of ZFS there are a few additional NFS shares ...
1
vote
1answer
114 views

CentOS 7 NFS partition doesn't mount on boot

I have a CentOS 7 x64 server which doesn't mount NFS entries in /etc/fstab on boot. The configuration is correct, because if I run mount -a, everything works like a charm. The fstab entries are as ...
0
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0answers
22 views

Some users cannot write via NFS, but others can

I have an NFS4-mounted /home drive, with several different users' home folders in it. I am using inetd's ID-mapping feature (i.e. NEED_IDMAPD=YES in /etc/default/nfs-common). The NFS mount and ...
0
votes
2answers
77 views

NFS stop working when on a lvm

I have a nfs server that was working correctly with a share on /exports/something. However, when I mount /exports/something on /dev/mapper/something (a lvm with more space) the nfs does not work. The ...
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0answers
32 views

Opennebula is very slow copying disk image

I have a CentOS virtual machine with OpenNebula's sandbox installed, connected to a host via NFS. I added a disk image of 2.5 GB that contains ubuntu server 12.04. Then I created a VM from this disk ...
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0answers
48 views

Optimum LUN size for LVM created NFS share

I have access to roughly 80 TB of capacity via a SAN, which I want to set up as as 2 NFS shares: 1 share of 70 TB and 1 share of 10 TB. The 10 TB share will have full backup to tape, whereas the 70 TB ...
0
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2answers
74 views

MySQL, NFS and symbolic links

I have been migrating an older server running apache2 + mysql under ubuntu to a new server running debian (wheezy). The migration works fine while the databases are storted localy (in our case ...
1
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0answers
117 views

Circular directory structure

I'm having an issue with a circular directory structure warning produced by du and find on my CentOS servers. I have two FreeNAS servers exporting several datasets via NFS which are mounted on the ...
0
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0answers
84 views

OpenNebula glusterfs cannot create on volume

I try to create a VM on my gluster volume, it fails with the following message: Wed May 20 20:37:30 2015 [Z0][DiM][I]: New VM state is ACTIVE. Wed May 20 20:37:30 2015 [Z0][LCM][I]: New VM state is ...
0
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0answers
29 views

Enable chown for a single host on an NFS export

Current NAS export I have a ReadNAS 4200, which I have root access to, which has the following /etc/exports file: "/Data" *(insecure,insecure_locks,rw,async) What my configuration doesn't allow ...
2
votes
1answer
88 views

Testing failover scenarios on nfs

I'd like to know what happens to connections when nfs is failed over to another server (drbd). If I have a file open in vim, it will lock up I think only sometimes come back.. after a long while? ...
1
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0answers
84 views

Is it possible to configure windows 7 x64 machine as a NFS server? [closed]

Aim: I want to mount a windows directory with read only permissions on linux machine without typing in windows credentials. I know it's risky but I am not concerned about the security here since both ...
0
votes
1answer
49 views

HA NFS with single primary DRBD

What is the basic process behind high availability nfs over 2 servers? Let's say that I'm using heartbeat to fail over a floating IP between the 2. I then have a third party server that mounts an nfs ...
0
votes
2answers
80 views

is it possible to combine files system from different servers and present it as one?

I have 3 physical servers (server01, server02 and server03) and local storage. I've created /app file system on all of three servers and mounted the storage there. I need to be able to combine /app ...
2
votes
2answers
86 views

Mount two nfs's shares from different storage over the same directory on linux

I have a set of 4 Linux web servers on cluster all of them have the same mount point: /folder This /folder is a NFS mount share over a NAS but is full and no more luns/disk are available to expand ...
0
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1answer
49 views

NFS client, ZFS Server ZoL: cat to changed file ends with not found

We get in trouble since an update from our clients from Ubuntu 12.04 to Ubuntu 14.04. The behavior: On client A I change an existing file foo on a nfs share. On client B I do a cat foo. 1st time ...
1
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2answers
30 views

awstats server in dynamic infrastructure

I have a linux server dedicated to awstats. This server hosts awstats application and generate/publish statistics for several websites hosted by several webservers deployed in my infrastructure. In ...
1
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0answers
139 views

Create and Manage Windows NFS Shares for Linux Clients with AD Authentication

I have a Windows file server that I would like to create NFS shares on. These shares need to be accessible by both Windows 7 domain clients and Linux clients (Red Hat 5 & 6) using Samba/Winbind ...
1
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0answers
34 views

NFS local user mapping works, but not with sudo

I want to use an NFS share for backing up. I have created a local user on the client with a specific uid/gid combination that works for writing files to the NFS share. So far so good. However, I need ...
3
votes
2answers
116 views

Replicated shared filesystem

I'm looking into setting up a shared filesystem/file server on AWS (EC2) infrastructure that offers replication and fairly painless failover. This filesystem would host potentially millions of files ...
0
votes
1answer
35 views

Wrong ldap user and group IDs on nfs

we have users authentication driven by ldap and home directories shared on nfs server mounted by autofs. We recently installed Ubuntu 15.04 on three new machines and added them to our infrastructure ...
1
vote
1answer
67 views

FreeBSD pf with NFS

I'm having trouble establishing new NFS connections when my pf is turned on. When I turn off pf on the server and client I'm able to mount with no trouble. I tried keep state and flags S/SA on the ...
0
votes
2answers
44 views

How can I best secure NFS between an Xen host on Debian and VMs?

After some research, it seems that the best way to share files between my Debian Xen host and the virtual machines on it is to use NFS. How can I secure NFS so that only the specified VM can access ...
0
votes
0answers
135 views

Mounting NFS server through SSH reverse tunnel

Here is my setup: Office computer in a network, with no way to access from outside, (OC) embedded computer in the field (FC) Server in the office, containing data to which the field computer needs ...
0
votes
1answer
35 views

Attach a volume and set internal IP on boot

I have an Ubuntu 14.04 based NFS server AMI wrapped with a Launch Configuration and an Auto Scaling Group of just a single instance (min/max/req). This is just to make sure that if the server goes ...
1
vote
1answer
46 views

NFS Mounts/ Failed reboot - Race Condition?

I recently suffered the joy of a server crash (Ubuntu 12.04) and a subsequent failure to reboot. It appears that the OS attempted to mount the NFS shares in the /etc/fstab file before networking had ...
6
votes
0answers
368 views

Systemd: start a unit after another unit REALLY starts

In my particular case I want to start remote-fs unit after all glusterfs completely starts. My systemd files: glusterfs target: node04:/usr/lib/systemd/system # cat glusterfsd.service [Unit] ...
1
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0answers
530 views

vagrant ssh - asks for password after adding synced_folder

I can vagrant ssh into my box fine Welcome to Ubuntu 14.04.2 LTS (GNU/Linux 3.16.0-30-generic x86_64) * Documentation: https://help.ubuntu.com/ Last login: Mon Apr 13 13:05:26 2015 from 10.0.2.2 ...
14
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2answers
476 views

NFS poor write performance

I have two machines connected with 10Gbit Ethernet. Let one of them be NFS server and another will be NFs client. Testing network speed over TCP with iperf shows ~9.8 Gbit/s throughput in both ...
0
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1answer
31 views

Storing backups on a remote filesystem

I have a FreeNAS solution, in which I'll would like to save my backups. Currently I was doing some scripting to rsync/tarball, but I want a something more easy to manage, so I figure out, to run a ...