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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NFS4 & VirtualBox: Ubuntu 14.04 host Windows 10 Techpreview client [migrated]

I have a host OS Ubuntu 14.04 (my main OS). I run a Windows 10 client inside VirtualBox. I wish for NFS4 to work between them, I cannot see the share in my Windows 10 client. I followed the following ...
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33 views

NFS Write Permissions — ls -l shows I have it; I actually don't

I have an NFS server serving several clients. Permissions work fine with all clients except one. The client mounts the nfs share fine, with permissions all correctly placed to the right users. ...
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10 views

rsnapshot: cp: preserving permissions – operation not supported

I am trying to use rsnapshot for backuping my server on mounted nfs filesystem, but it keeps failing on: /bin/cp: preserving permissions for `...': Operation not supported Backup configuration is ...
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28 views

Fedora 21 NFSv4 mount hangs for a long time, then times out; showmount -e works

I have a fedora 21 server with the following /etc/exports: /mnt/scainet 192.168.1.0/24(rw,sync) On my client on the same subnet, connected to the server through a hub, I run mount -t nfs ...
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1answer
38 views

NFS delays renames but not writes?

I have some (6) boxes that have an NFS share mounted on which they write files. All run ubuntu 14.01 and the NFS server is a standard nfs-server from ubuntu packages. This works well. However, when ...
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1answer
25 views

Does it make sense to remove NFS from a simple web server?

Does it make sense security- and performance-wise to remove NFS on a simple server which has ~10 Wordpress websites? Or is simply stopping the services enough?
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1answer
84 views

NFS Client Issue on CentOS 6: rpcbind not listening on port 111

I'm trying to setup a NFS client on a new CentOS 6.6 server to an existing NFS server and am having problems that I cannot figure out. When starting rpcbind/nfs I get: # /etc/init.d/rpcbind start # ...
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4 views

Ubuntu Home Server Packetstorm [migrated]

I have a home plex server that runs various pieces of software and fills various roles. It's running the latest Ubuntu with all the latest packages/updates. About every 10 days or so, it starts packet ...
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1answer
26 views

having trouble setting up NFS server on centos 6.5

Setup: Provider: Linode nfs server: a linode with centos 6.5 nfs client: a linode with centos 6.5 When I tried mounting mount.nfs: access denied by server while mounting x.x.x.x:/shared This is ...
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36 views

Linux fixed file size copy from Windows Server 2012 NFS share

Company is in the process of switching from hosting MongoDB on windows server 2012 to hosting on linux(ubuntu 14.04) Current backup and restore strategy involves copying all the data files via ...
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2answers
27 views

Is IPSEC used by default on Win7/'08-R2 NFS (TCP139/445&UDP137/138)

We'd like to share files through an Win08R2 EC2 instance with clients (Windows 7 machines) through the default NFS (i.e. avoiding 3rd party software like Dropbox/Aws-s3 etc.). Encryption at rest is ...
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1answer
64 views

Vagrant NFS shares in Fedora 21 blocked by firewalld

My NFS shares created by vagrant are being blocked by firewalld. The host is Fedora 21 and the client Debian 7.7. This is common problem that should be solved by opening the firewall for NFS as seen ...
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4 views

nfs mount works for tcp but not over udp [migrated]

I'm connecting my raspberry pi (raspbmc) with my synology nas. I have 2 mounts 192.168.0.5:/volume1/video /mnt/video nfs udp,intr,noatime,rsize=32768,wsize=32768,nolock,nfsvers=3,async ...
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14 views

Python libraries slow to load from NFS mount point

Several of our computers are diskless, and they load their Python libraries from an NFS mount point across the network. This means it can take up to three minutes to start up a Python process that ...
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0answers
14 views

NFSv4 ACLs on gpfs

I try to use NFSv4 over gpfs, but I'm get the following errors: # nfs4_getfacl file Operation to request attribute not supported. # nfs4_setfacl -e file Operation to request attribute not supported. ...
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1answer
55 views

Chain NFS sharing [closed]

We have a storage server which for some reason cannot be reached directly (and of course not in same network). So we thought that we need to create some kind of chain NFS sharing like; ServerA ...
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2answers
40 views

Stop file being deleted on NFS mount

I have files stored on an NFS mount which I want to prevent being deleted. The use case is I have a demo version of a web application which uses the same images on every demo - when someone deletes a ...
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1answer
32 views

What is the difference between rMB_nor/s, rMB_dir/s, and rMB_svr/s in iostat?

I'm trying to interpret the results of running the following command iostat -mnhyc It produces the following Filesystem: rMB_nor/s wMB_nor/s rMB_dir/s wMB_dir/s rMB_svr/s ...
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1answer
54 views

Doesn't NFSv4 have no_root_squash?

When I in /etc/fstab have nas:/tank/nobackup /mnt/nas nfs exec,nosuid,rw,bg,soft 0 0 then mount -a; mount gives nas:/tank/nobackup on /mnt/nas type nfs ...
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33 views

Disable file content/data cache for NFS?

I'm using NFS to share a directory between host (nfs-serer) and guest (nfs-client) system. I did not want to use KVM's preferred module 9p due to slow transfer speeds - NFS, does yield about twenty ...
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1answer
279 views

NFS share problems - RPC: fragment too large: xxxxx

We have a virtual server with an NFS share that is written to by other servers. Today the NFS share became inaccessible. The syslog was full off messages like this: RPC: fragment too large: 311176 ...
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1answer
54 views

NFS: How to allow a specific user to write in a NFS mount?

I wrote a Nagios check which is supposed to check the time it takes a server to write a file to one of it's mounts. The check is being run by user nagios. The NFS server is configured like so: ...
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3answers
69 views

Is is possible to live sync two network drives?

I have one NAS in India (active) and while other in US(passive). I want to sync the US NAS with that of India in real time (with permissible latency) I tried using RAID1 for this purpose, but I ...
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182 views

Configuring Synology NAS as freeIPA client

I'm attempting to deploy freeIPA in my company. The network is quite simple: < 10 FC20 (and FC21 beta) desktops < 5 FC20 servers (including the one with freeIPA) 1 Synology NAS DS1813+ (DSM ...
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1answer
430 views

Share disks through NFS on a CoreOS cluster?

Is it possible for a CoreOS cluster to share disk space, e.g. using NFS? If so, how would one go about this? (e.g. in the scenario where one node has a lot of disk space). This would be useful to ...
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1answer
146 views

Network File Systems (NFS) between multiple AWS EC2 Instances for VisualSVN Servers behind Load Balancer

I have a couple of windows server instances running on Amazon EC2 with VisualSVN Server and would like to make them a bit more fault tolerant by running a duplicate instance with load balancers. The ...
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3answers
114 views

Find out what NFSD processes are actually doing?

When I view top on one of our servers there are a lot of nfsd processes consuming CPU: PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 2769 root 20 0 0 0 0 R ...
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1answer
66 views

Solaris NFS Mount Permissions [closed]

I've created an NFS share and have added to vfstab. However, I'm not able to change permissions or create directories as ROOT on the server where it is mounted. $ mkdir test mkdir: Failed to make ...
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0answers
56 views

Transparent data caching in multi-site environment

I need an advice on choice of the right technology for my problem. I have geographically distributed multi-site environment where there is one main site and a number of remote sites. Main site ...
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1answer
38 views

Where is NFS data cached?

I mounted an NFS export and started a process that I expected to write a significant amount of data to the shared disk. The speed of the shared disk was so slow that I killed the process, but IO on ...
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0answers
69 views

Copying from NFS mount crashes Linux client machine

I have NFS share mounted on CLIENT in /etc/fstab: SERVER:/share on /mnt/share type nfs (rw,users,noexec,nosuid,nodev,timeo=14,hard,intr,addr=1.2.3.4) Intensive use on client like copying a lot of ...
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34 views

Can NFS unlink and recreate result in a race condition?

I'm seeing strange behavior and I'm wondering if it's a race condition. The strange behavior is MySQL getting EEXIST when trying to create a temporary file. MySQL reuses temp file names by default, ...
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2answers
71 views

Can NFS server limit the amount of disk space that the NFS client can use?

Let's say in a server A with 100GB partition, user create a NFS export directory. In server B, user mount the NFS share to use it. In server A, can the NFS server limit the amount of disk space that ...
1
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1answer
45 views

Can I use user-based kerberos authenication with NFSv4?

Is it possible to set NFSv4 + Kerberos to do user-based authentication? As far as I understand you are required to create a principal for a client machine(i.e. it is still Host-based?) on Kerberos ...
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2answers
98 views

Which file system best handle multiple, concurrent write sessions [closed]

Which file system best handle multiple, concurrent write sessions Which file system can handle more concurrent write sessions; let’s say 32 write sessions? The file system has to handle 32 ...
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42 views

QSUB error in NIS. stale NFS file handle

I'm one of the user of our server, not administrator. Our main server uses NIS. And File system and clusters are connected to NIS server. Whenever I want to execute ./program.sh I type qsub -q ...
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1answer
54 views

What are some good ways to identify nfs clients that cause high load on nfs server

Sometimes my nfs4 server is under high load. Is there any good tools identify which client causes it. running iotop and nfsstat on nfs server shows only general load information which does not help to ...
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0answers
51 views

Linux NFS server refuses blocking locks

So I have this problem. This horrible, awful problem. I have a set of Linux NFS servers (in a NFS/CIFS cluster using CTDB) that refuse locks… only when the lock is blocking. If it's a non-blocking ...
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1answer
42 views

Would it be good idea to share DNS zone files via NFS?

Any expert advice on Bind DNS zone file transfer (master->slave) via NFS? Are there any drawbacks for not using Bind's zone transfer feature? Thanks a lot!
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163 views

How to unconditionally map UID/GID of all clients to those set by NFS server?

I have a virtual machine with Ubuntu 12.04. On this machine I have a directory that I want to advertise to the external world via NFS: <PATH> ...
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1answer
34 views

Which match takes precedence when exporting an NFS share?

Say you're exporting an NFS share using IP addresses and netmasks to give different machines different permissions: [/etc/exports] /media/shared 192.168.0.64/26(rw,[...]) 192.168.0.0/24(ro,[...]) ...
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1answer
167 views

NFS fails to mount through openvpn tunnel

I am trying to establish an nfs connection through an openvpn tunnel. It really anoying and i dont know what to try next. The connectein test has been made on several platforms now. used ...
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1answer
49 views

chown on items in nfs mount get wrong user

I have an nfs share mounted on my linux box. If users create files or directories, everything works fine and the newly created item is owned by that user. However if root goes in and does a chown on ...
2
votes
1answer
480 views

Why do some host volumes in Docker containers give the error “too many levels of symbolic links”?

I'm running docker with a host directory mounted: $ docker run -v /usr/groups/thing -ti imagename /bin/bash Files in /usr/groups/thing/foo are accessible: # ls /usr/groups/thing/foo a b c But ...
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43 views

Windows: Automounter daemon for NFS?

Unix has autofs for automounting NFS. I find it wonderful to be able to: cd /nfs/my.nfsserver.example.org/exporteddir/mydir and have autofs lookup the DNS name my.nfsserver.example.org, mount ...
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45 views

NFS Datastore Disconnects When sVmotion Migration is Attempted

I have a EMC VNXe 3100 and I had tested both iSCSI and NFS connections from it to my hosts, with NFS appearing to be the better of the two. So I set it up and in my testing with 1 VM everything ...
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0answers
110 views

nginx operation not permitted

After last reload nginx i have error nginx: [emerg] chown("/gypost/uploads/00", 1001) failed (1: Operation not permitted) 192.168.0.91:/gypost/mail/u 247G 17G 218G 7% ...
4
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2answers
170 views

NFS Caching Issue

We are having an issue that happens intermittently during a code deployment. NFS caches the files as they are read, but if a file is read during a code deploy it stays in a dirty state as if the file ...
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0answers
118 views

Mount NFS share and symlink it to a directory using non-Administrator account

I'm on Windows 8.1 Enterprise and what I'm trying to do is to have a python script that will: Mount an NFS share for the current user Create a symlink in the current working directory to a drive ...
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1answer
90 views

Shared /home with NFS: chown /home/userdir to a user that doesn't exist on the server

Let's say I have a NFS /home on my server that gets mounted on boot by clients (EDIT: on their own machines -- locally), in order to have a common /home for my clients, this way they automatically ...