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20
votes
1answer
2k views

Understanding NFS4 (Linux server)

I've been a bit bothered by NFS4 on Linux. Some information 'out there' seems to conflict with other information, and other information appears hard to find. So here are a couple of things that caught ...
7
votes
4answers
614 views

Securing NFS against SSH tunneling

I was idly reading http://nfs.sourceforge.net/nfs-howto/ar01s06.html trying to understand why localhost exports were bad when I got to the section "6.4. Tunneling NFS Through SSH". Everything in that ...
5
votes
3answers
1k views

monitoring nfs with monit

I'd like to monitor NFS mounts and the NFS server process using Monit. On the server, I'd need a PID file, but I can't seem to find a way of getting that created with existing configuration files. ...
4
votes
2answers
653 views

/etc/exports & mount option

In my Linux server I have the following options in /etc/exports /home *(rw,sync,no_subtree_check,no_root_squash) And I mount from a Mac using mount -t nfs -o ...
4
votes
1answer
197 views

Is there a way to limit the network bandwidth / filesystem use per user over NFS on a Solaris 10 file server?

We have a large file server running on Solaris 10 and about 200 computing nodes running on Ubuntu. The nodes access the file server over NFS. The load gets larger and larger over time. Is there a way ...
4
votes
1answer
163 views

NFS soft mount timeout too slow

We have a VERY busy cluster of servers. Our 16 app servers serve our application off of a local SSD on each machine, but they also process images which are then served off of our cdn. Because of this, ...
3
votes
1answer
775 views

How do I rearange a file tree and then export it over NFS?

I've got a backup server that stores incremental backups in a tree like this: /backups hourly.0 server 1 server 2 hourly.1 server 1 server 2 hourly.2 ...
3
votes
1answer
28 views

unable to write to mount point (nfs-server), getting “Permission denied”

I'm trying to configure NFS between two RHEL7 nodes: first node: [root@ip-10-164-175-246 ~]# cat /etc/redhat-release Red Hat Enterprise Linux Server release 7.0 (Maipo) [root@ip-10-164-175-246 ~]# ...
3
votes
1answer
1k views

How do I disable NFSv3/v2 connections to a FreeBSD NFSv4 server?

I am using a Kubuntu 11.10 client with a FreeBSD 9.0 server. The server has the following lines in /etc/rc.conf nfs_server_enable="YES" nfsv4_server_enable="YES" nfsuserd_enable="YES" and the ...
2
votes
3answers
713 views

How should I install NFS on a linux system?

I have two systems and I need to setup a folder on one of them that is completely read/write-able by the other. Questions: 1) How do I setup NFS on the server(s)? It is not installed as an available ...
2
votes
2answers
492 views

Removing and copying files slow on NFS folder

I have a server that hosts images and allows access to one directory for one client over NFS. The directory contains about 70K images and is 12GB big. When I execute commands like cp or rm on the ...
2
votes
2answers
698 views

How to hide shadow-copies in NFS shares?

I have a Ubuntu server with both samba and nfs-server. The server does snapshotting for the exported directory and the samba server uses the snapshots to emulate shadow copies. ( vfs objects = ...
2
votes
1answer
319 views

How to change NFS export allowed IP addresses on Mac OS X Server (Tiger)?

I am running NFS on a Mac OS X Server 10.4. I had originally set up the NFS exports in the GUI, and restricted the IP addresses in the GUI to which it can export. Right now, I only have command-line ...
2
votes
1answer
1k views

Autofs mount nfs issues

I'm having some issues getting autofs to work properly on a new Centos 5.5 installation. Please find Exports from my storage servers: /san/files *(rw,sync,no_subtree_check,no_root_squash) /san/mail ...
2
votes
1answer
658 views

NFS mounts showing files from other mounts

I have a server that holds ZFS snapshots that I export via NFS to the servers they are backing up so you can restore via a custom application written in-house. The issue is as follows: NOTE: I am ...
2
votes
1answer
68 views

Performance Penalty with increasing number of NFS exports

We are using NFS for distributing users HOME through our network. Currently we simple export the complete folder containing all HOMEs. Thus each users home is in the end /home/SERVER/USER Now I like ...
2
votes
1answer
285 views

ZFS, NFS and Nexenta

Is this message familiar to someone ? zfs-clu-01a rpcmod: [ID 851375 kern.warning] WARNING: svc_cots_kdup no slots free zfs-clu-01a last message repeated 75220 times We have a lot of trouble ...
2
votes
0answers
155 views

NFS server export list empty

After upgrading my router, I am unable to mount NFS shares from a Debian server on an OS X client. I have updated /etc/exports according to the new IP address of the client (first line previously ...
2
votes
0answers
660 views

how to tune NFS client on MacOS to get Linux like performance?

I have a NFS server running Linux and exporting a couple of shares. Both Linux and MacOS clients connect to the server, and while with the Linux clients I get ~ 75MB/s write speed, the MacOS clients ...
1
vote
2answers
8k views

Problem with NFS server lockd timing out on Debian linux

We've recently upgraded an NFS server (called "ian"), and after the upgrade, NFS is broken, whereas it wasn't before. The server is now running Debian "lenny", with kernel version 2.6.26-2; it's a ...
1
vote
2answers
1k views

How to create a Mirror of an NFS Share?

For back-up and restoration purposes the purpose of retiring an old server, I will need to create a perfect mirror image of an NFS share. This mirror is not a simple re-direct, but rather, an exact ...
1
vote
2answers
786 views

nfs server on cygwin slow

The setup: We run an instance of cygwin nfsd on a Windows 2008 Server (Xeon 3,2 GHz). There are several Sun Solaris and SunOS machines accessing the shares. This is the exports file: /disk3 ...
1
vote
1answer
334 views

NFS exportfs spamming logs. Is this a broken setup?

I have a NFS server running Ubuntu 10.04, serving an OCFS2 filesystem. The setup is somehow complicated because the server has Heartbeat and Pacemaker installed to make a cluster with another server. ...
1
vote
2answers
339 views

Unknown process on port, lsof no help, nfs-kernel-server?

During a standard security sweep we found out a something was listening on a port unknown to us, 2030, and we are having trouble determining the source. # netstat -anp | grep LIST tcp 0 0 ...
1
vote
2answers
386 views

How to share USB drive via NFS on FreeBSD

I'm trying to share USB hard drive with msdosfs connected like this: mount_msdosfs -o large /dev/da1s1 /mnt/usb I can see mounted drive: /dev/da1s1 on /mnt/usb (msdosfs, local) but when I'm ...
1
vote
1answer
1k views

CentOS 6: Can not start NFS

I am unable to start the NFS service. When starting there is no error. But the services are stopt after it. No messages at all in /var/log/messages. Same happens to rpcbind serivce. Any idea what this ...
1
vote
3answers
1k views

Which NFS server should we use on Windows Server 2008 R2?

We need to serve NFS shares from our Windows Server 2008 R2 machine to Solaris 5.10 clients, since apparently we are unable to mount SMB shares on our Solaris 5.10 machines :( What's the recommended ...
1
vote
1answer
64 views

Augeas edit option if it exist, add otherwise - while referencing newly created node

I want to do something along the lines of: set /files/etc/exports/dir[. = '/export/home'][client = '10.0.0.0/8'] /export/home set /files/etc/exports/dir[. = '/export/home'][client = ...
1
vote
1answer
793 views

NFS issue: clients can mount shares as NFSv3 but not as NFSv4 — or how to debug NFS?

Problem description I have a file server running Debian. On it I have a few NFS shares. When I mount the shares from a client using NFSv3 (mount.nfs 10.0.0.51:/exports/video /mnt -o ...
1
vote
1answer
944 views

NFS share suddenly becomes unresponsive

We've got a setup involving separate web & email servers mounting various shares on the same pysical NFSv3 server. The web server uses a share for apache vhost files, the mailserver uses a share ...
1
vote
1answer
810 views

Autoscaling and NFS Server

I have a WebServer say WS-1 and a NFS server say NFS-1 setup on AWS. WS-1 is being managed by an elastic load balancer and also autoscaled. It also has an EBS mounted on /var/www which contains all ...
1
vote
0answers
61 views

Confirm IPTables firewall settings for NFS v4 server?

This question has been asked here before but has conflicting and possibly outdated answers. It seems to depend on OS, version of OS, and version of NFS. On a CentOS 6.5 server, the default rules are ...
1
vote
1answer
331 views

Fully disable IPv6 for rpc on NFS server - Ubuntu 12.04 LTS

I'm trying to disable IPv6 completely on my NFS server (Ubuntu 12.04 LTS precise), but still seem to have some IPv6 ports listening as shown when I run netstat -lp: Proto Recv-Q Send-Q Local Address ...
1
vote
1answer
93 views

NFS mount still connected even after box is disconnected from network

I have a mount between a RHEL 5.6 and a Solaris 6 box acting as the NFS server. My mount options are simply rw,intr. When I disconnect the RHEL linux box from the network I am still able to write ...
1
vote
0answers
76 views

Preventing NFS Denial of Service

I have a NFS4 server running Ubuntu 10.04 Server, on an enterprise environment with 50+ clients. Overall, everything works fine, but from time to time, some client starts making +1000 NFS operations ...
1
vote
1answer
3k views

Windows Server 2008 R2 Server for NFS Anonymous Access

I have an NFS share on a Windows 2003 Server that is working perfectly with read/write access using anonymous access. I am moving to a Windows Server 2008 R2 machine and am trying to do the same. I ...
1
vote
0answers
756 views

nfs4 rpc.idmapd not working on one machine

I have an nfs4 server, with fsid=0 exported with no_subtree_check,no_all_squash,no_root_squash I have various clients working fine with this, a mixture of debian and arch, mounting with nfs4 and ...
1
vote
1answer
208 views

Need rpcsec_gss_krb5 and Linux kernel 2.6.35+ on EC2

I am trying to do Kerberos-auth:d NFS4 on EC2. In order to do this, it seems one wants a kernel at least 2.6.35 in order to get decent encryption algos. The distro I could find that provides this is ...
1
vote
1answer
3k views

ubuntu: configure iptables to allow NFS traffic [duplicate]

Possible Duplicate: Running NFS with iptables, change firewall? I need to allow a client to connect to a nfs server. If I disable iptables then NFS works great. I understand that when NFS ...
1
vote
1answer
336 views

problem in exporting a partition on a usb stick as nfs volume

I have a USB disk which has 2 partitions.It gets mounted automatically in /media It is the default behavior in the OS (Lucid 10.04 64 bit) that upon connecting a USB (be it thumb drive or hard disk) ...
0
votes
1answer
87 views

Read only NFS mount with local writes allowed

I would want to share a directory via NFS only read-only (data should not be corrupted). However I would want the client to be able to use the mounted folder as if it was read write, as transparently ...
0
votes
1answer
115 views

Upgrading NFS/NIS Shared `/home` Setup

I am currently managing a network of workstations running different flavours of Ubuntu. The server (also Ubuntu) runs a NIS server and exports a shared /home directory over NFS (in v3 compatibility ...
0
votes
2answers
625 views

How to monitor which files are accessed through NFS?

I have a linux file server running CentOS 6. Files are accessed via NFS4. Sometimes I have problems with disk io load. I want to find out what is causing them. I can find out which client is causing ...
0
votes
4answers
3k views

How do I recover from a hung machine with an 'nfs server *** not responding' error?

nfs server *** not responding nfs server *** not responding nfs server *** not responding nfs server *** not responding nfs server *** not responding nfs server *** not responding I am getting this ...
0
votes
1answer
111 views

Solaris NFS server: don't resolve IPs

Is there any way to configure Solaris NFS server to not backresolve IPs of the client machines when checking access control, except specifying @ before every IP? We never use hostnames so would like ...
0
votes
1answer
35 views

Cannot find NFS server logs on CentOS 6.5

I cannot find the logs for a NFS server on a CentOS 6.5 machine. grep -Rni "nfs" /var/log/messages returns nothing useful. The NFS service is running and I am able to mount the NFS share from most ...
0
votes
2answers
48 views

NFS host is not exporting the “share”

I have a NFS Server: usanfsd01 And a remote machine: usafssd01 I tried mounting a directory from usafssd01 onto usanfsd01 by adding the following line to /etc/fstab as root ...
0
votes
1answer
60 views

NFS performace degradation [closed]

I work for a small software house. We share our developers' home directories over NFS. The primary use for this is to host the users' git repository. Since last week, there has been a signficant ...
0
votes
1answer
79 views

Sharing LINUX NFS Folder on Windows Server

I have some CSV files on Linux. I would like to load them into my SQL Server with a stored procedure. I'm looking for a way to share the files via NFS with my Windows Server. I was wondering if ...
0
votes
1answer
151 views

Mounting NFS Folder on to a Remote Machine (Both machines are on Red Hat Linux)

I'm a newbie to Linux and would need some advice on the thing I'm trying to achieve with regards to mounting a NFS Folder I have a NFS Server: usanfsd01 And a remote machine: usafssd01 I've a ...