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Questions tagged [nfs]

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 Computing Remote Procedure Call (ONC RPC) system. The Network File System is an open standard defined in RFCs.

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macOS High Sierra issues mounting Kerberized NFSv4 shares

I'm using FreeIPA for LDAP/Kerberos and I've created a principal for a storage appliance (Dell/EMC UnityVSA VM). I have setup the VSA with a keytab from IPA, I've also setup within the VSA the LDAP ...
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1answer
21 views

Use Amazon repo in Centos 7

I set up a Centos 7 instance on EC2 and i need to mount a couple of EFS filesystems. Because Centos 7 and Amazon Linux 2 are pretty similar, I am wondering if could be possible to add Amazon Linux ...
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1answer
17 views

How can use NFS client with credentials on windows 10

I am trying to come up with a SMB alternative solution for my network. I installed NFS Server on a windows 2016. The problem is connecting from windows 10 to that server. I spent almost a day on ...
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Linux NFS server NUMA affinity - pool_mode

From the Linux kernel-parameters.txt I have seen that it is possible to change the NFS pool behaviour to have the nfsd threads bound to NUMA zones. The parameter in question is sunrpc.pool_mode and ...
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Is my NFS mount actually using async? Diagnosing very slow response time

I have the following NFS mount: server:path /mnt/path nfs rw,hard,intr,nfsvers=4,async 0 0 Pings to the server are ~60ms, which is quite reasonable, yet any access to the mount is very slow. Copying ...
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1answer
27 views

Securing NFSv4 WITHOUT Kerberos on a public cloud?

I've lost enough hair trying to setup this Kerberos nonsense. Is there any way to secure an NFS v4 setup without using Kerberos on a public cloud, i.e: all servers have a public IP (there is no ...
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20 views

AutoFS not mounting NFS on non-standard port

I have a little problem with AutoFS and having a NFS share on a different port. It works fine with another share on the standard port and the not working share works fine when i go the manual route ...
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19 views

ID Mapping from Windows NFS Client to CentOS not working

Our setup includes a CentOS 7 server sharing a folder via NFS, and multiple CentOS 7 and Windows 10 clients connecting to it. All machines are part of a Samba Active Directory domain, which was built ...
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2answers
30 views

Trying to determine, from the nfs server side, what files/directories are being accessed on a read-only nfs share

Is it possible to find out what files and applications are being used on a nfs share from the server side? We make files/applications available to our users from a (read-only) nfs share. It has not ...
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1answer
33 views

Keep BIG folder sincronized on network

I have N Windows 2016 servers with a folder which needs to have binaries up-to-date. This folder (actually) haves ~200GB, but it may grow, twice its size or even more. My idea was to keep those ...
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2answers
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NFS - some files show as zero bytes

I have an NFSv3 Ubuntu server. When I extract a specific zip file, it creates a folder and several files. The folder is accessible over NFS, and the names of all the files are there. The only ...
2
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1answer
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Encoding issue between NFSv3 and NFSv4

We have some issues regarding NFS share regarding filenames encoding. We were previously mounting as NFSv3 and started to use NFSv4 and some files previously created, with special characters (...
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0answers
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Are the in-built sharesmb / sharensfs options in ZFS on Linux special/better?

While reading through the man page of zfs I noticed the sharesmb and sharenfs options. Are they thin wrappers over samba/smb/cifs/nfs provided by the underlying Linux system, or special/optimised code ...
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1answer
22 views

Can not write to NFS unless chmod 777

I just followed the following tutorial https://www.howtoforge.com/tutorial/install-nfs-server-and-client-on-debian/ My exports file looks like /storage/nfs/ 192.168.2.13(rw,no_root_squash,async) ...
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27 views

manually expire a kerberos ticket for a session

I am using NFS service over kerberos. The client mounting the NFS share obtains the ticket from kdc server and works perfect in terms of accessing the NFS share. My requirement is that I need to ...
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Identifiy stale mount points - built in linux program?

I want to monitor a couple of network share mount points, some of them are cifs others are nfs shares. Sometimes it happens that these mount points become stale, due to the ip switching on the share ...
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1answer
48 views

NFS export an overlay of ext4 and btrfs

I have 2 data sources. One is btrfs (raid) and one is a simple ext4 partition. Those should be transparently displayed as one. This is a simple read only example, but the lower/upper/workdir version ...
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1answer
9 views

How to collect metrics for NFS?

Our worker nodes in cluster use NFS shares, and I need to create dashboard to display health and quality of NFS shares. Is there any way to get on client some metrics, like response time, throughput, ...
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0answers
25 views

What exactly does nfs4_disable_idmapping parameter do?

I've been experimenting with user/group ID mapping (translation) in NFSv4. What I want to achieve is name based ID translation, that is independent of the actual UID/GID on the server and clients. ...
0
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1answer
59 views

NFS client firewall settings and rpcbind

I have a server (Debian 9.6) which mounts an NFSv3 share for backup purposes. Does it need any specific firewall settings ? I have found that rcpbind is listening on port 111 and 903 and is ...
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2answers
44 views

trying to find which static port for NIS or NFS service in firewalld

On our slave NIS server we have in /etc/sysconfig/network I've set YPSERV_ARGS="-p 944" YPXFRD_ARGS="-p 945" and OTHER_YPBIND_OPTS="-p 3000" in /etc/ypbind.conf and YPPASSWDD_ARGS="--port 946" in /...
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1answer
45 views

ext4 mysterious “No space left on device” error

Im having trouble with my ext4 filesystem. Im using this with NFS to make it available to remote machines. Now its showing a mysterious "No space left on device" error when im trying to mkdir $name ...
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0answers
9 views

Nfs serveur slowed down after php code timed out

As stated in the title, I have an Debian9 nfs server that has presented some odd behaviour recently. We have a php application where all the app code, image, cache... is in an NFS. The NFS is running ...
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2answers
49 views

How to configure NFSv4 mount so that owner of files created by root user on NFS client appear as 'root:root', rather than 'nobody:nogroup' on client?

I have an Ubuntu 16.04 server on which the Nextcloud snap is installed (nextcloud.lan), and an Ubuntu 16.04 NAS configured to serve files over NFSv4 (nas.lan). I would like to mount directory /var/...
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1answer
76 views

cachefilesd systemd service failures [closed]

gentoolaptop / # systemctl status cachefilesd ● cachefilesd.service - Local network file caching management daemon Loaded: loaded (/lib/systemd/system/cachefilesd.service; enabled; vendor preset: ...
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1answer
34 views

How does NFS figure out which Kerberos creds / principals to give access to?

I'm setting up NFS with Kerberos and following various guides, like NFSv4 with Kerberos on Ubuntu Wiki and How To Use Kerberos to Control Access to NFS Network Shares, amongst others. All guides ...
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1answer
41 views

Synology NAS can only be mounted (as nfs) when connected by cable

I bought a Synology NAS DS216se on Wed. Dec. 26th. After first tests with samba, which were very slow, I mounted it as nfs. It got better. But during a huge rsync it came to my mind that probably ...
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0answers
60 views

list directory is slow when using NFSv4

I'm currently setting up NFS based file sharing between my Mac client (Macos 10.14.1) and Raspberry Pi3 server (U16.04.1 LTS). As I dual-boot my Mac (MacOS/Ubuntu18) I want to use my Pi with NFS (I ...
0
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1answer
108 views

ESXi 6.7 NFS Datastore - Access denied

I am setting up a new vSphere environment using 6.7. I have built the first ESX server and need to connect to an NFS mount to use as a datastore. The NFS share is on a NetApp running in Cluster mode, ...
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1answer
109 views

File-sharing over Infiniband on FreeBSD

I have a pair of servers, which I'd like to connect to each other directly -- rather than through the switch shared by the rest of the network. I expect to benefit from lower latency and higher ...
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Configuration NFS v3 Kerberos on Centos 5.x

Platform: CentOS release 5.5 Installed the kb5-libs , krb5-server krb5-workstation in the NFS Server. The NFS Server IP and Machine IP are different. Machine IP : 172.xx.xx.xx NFS Server IP: 169....
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1answer
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Is it possible to disable in NFS showing name of shared folder?

I have NFS server 192.168.1.1 and two client servers 192.168.1.2 and 192.168.1.3. On nfs server I have one shared nfs folder /etc/exports: /nfsshare 192.168.1.2(rw,sync,no_root_squash,no_all_squash) ...
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1answer
32 views

NFS Migration automation (CentOS 5)

I need a little help with an upcoming migration. The storage team has implemented a new netapp stack. Once I have a tested script, I have around 400 servers across two environments that I'll need to ...
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1answer
53 views

bonded ethernet NFS use both NIC's possible?

I have a box with two 1Gb NIC's in it, bonded. The type of bonding is "per connection" so each connection goes "to 1 nic" but if a process has multiple connections, it will share the bonded NIC's and ...
0
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1answer
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Can I mount a Google Cloud NFS volume on my local computer?

I created a NFS node on Google Cloud, and I would like to create a volume mount on my local Mac OSX computer; it seems that I need to connect to the same VPN as the NFS node, but I'm not sure how to ...
2
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1answer
35 views

looking for dtrace script to list top used nfs files

I'm currently using https://github.com/siebenmann/cks-dtrace/blob/master/nfs3-mon.d to identify most active datasets on our NFS server (Solaris 10) Unfortunately I need to dig deeper, and I would ...
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1answer
63 views

rsnapshot through nfs: failed to preserve ownership|cannot access errors

Trying to rsnapshot to an nfs share I get some ownership and access errors, even if I can visibly do any operation on my shares with UID 1000 and GID 1000 on both server/client. Server exports /etc/...
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3answers
206 views

How can you use Amazon S3 or S3-compatible Storage as NFS?

How can you use Amazon S3 or S3-compatible Storage as NFS? Is there a way to achieve this? Something that can be accessed through an external network (internet, public) using NFS protocol.
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Is a file move on an NFS share atomic

We have a system producing new files on an NFS share (I believe the provider is NetApp). Our applications are written in Java. The Java spec says that FileSystem moves are atomic, but not sure if ...
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0answers
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Mounting NFS (hosted on Ubuntu on Hyper-V) to Docker containers

We have two computers, one running Windows Server 2016 and Windows 10 Enterprise. The server hosts an NFS share (for NTFS filesystem) which was created following this tutorial. The server also has a ...
0
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0answers
90 views

NFS Lock Manager / rpc.lockd is not running

I have installed nfs client in my server (yum install nfs-utils nfs-utils-lib -y) in order to mount NetApp NFS storage. Everything works well and I was able to mount the storage as well. owever, I ...
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0answers
63 views

Restricting access to users/groups of NFS mount through FreeIPA

I setup a NFS mount through the following guide with FreeIPA. Short instructions on first post: Unable to mount kerberized nfs? Long instructions: https://access.redhat.com/documentation/en-us/...
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2answers
99 views

Contents of NFS folder disappear after application attempts to read it

I recently ran into an issue with nfs on my nfs clients related to one specific shared directory. None of the applications I use (Sonarr & Plex) which are both on different VMs are able to read ...
0
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1answer
109 views

Debian stretch allow only nfs version 4.1 or higher

I am running Debian 9.0 (Stretch) with nfs-kerner-server from the repositories. How can I restrict connections with protocol version lower then 4.1?
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1answer
287 views

NFS slow throughput

I have experienced some issues with less-than-expected throughput with NFS. After examining a number of options (endless googling), including raid setup, network interfaces etc, I wanted to test a ...
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1answer
105 views

nfs server setting permission for different groups

I have two groups "masters" and "slaves" i'm setting up an NFS server for the partition "subject" and I want the "masters" group to be able to read & write to the "subject" while the "slaves" ...
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0answers
50 views

Mounting NFS servers with Docker/Kubernetes containers, without using insecure mode on the server

I'm trying to containerize an web application. As part of its operation, it requires access to four separate NFS mount located on different hardware. Two of the mounts live on a regular Linux box, but ...
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0answers
108 views

Mount NFS Share In Windows On Non-Standard Port

I have an NFS server on a Linux machine bound to a non-standard port. I can map it on another Linux machine using them command: mount -v -o port=$PORT $IP:/ /$MOUNTPOINT, but I can't seem to find any ...
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Windows 2012: First NFS I/O After Reboot Hangs

I have a 2012 R2 server configured to export a folder over NFS to Linux clients using defaults to mount. After the server reboots, the clients are able to read attributes once again after a minute or ...
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1answer
30 views

gssd: What is <anyname>?

rpc.gssd's man says: rpc.gssd searches in the following order for a principal to use. The first matching credential is used. For the search, <hostname> and <REALM> are replaced with the ...