howtos:network_services:nfs-quick_and_dirty_setup

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====== NFS - Quick and Dirty Setup ======

Known to work on Slackware 14 & 14.1 \\ 

====== Assumptions ======
1) This HOWTO assumes that you are using a **vanilla install of Slackware** and have **not changed** the default HOSTS_ALLOW, HOSTS_DENY, or firewall rules. \\ 
2) For this example, the shared directory on the server will be /nfs_share \\ 
3) For this example, the mount point of the NFS share will be /mnt/nfs_share \\ 
4) We want anyone on our subnet (192.168.1.x) to have RW access the share \\ 

====== Overview ======
1) Setup the server \\ 
2) Setup the client \\ 
3) Mount the NFS directories on the client \\ 

====== Server Setup ======
Add the NFS shares to the /etc/exports file \\ 
<code>vi /etc/exports</code>
add: \\ 
<file sh /etc/exports>/nfs_share 192.168.1.1/24(rw,sync,no_subtree_check)</file>

Start the NFS and RPC daemons \\ 
<code>chmod 755 /etc/rc.d/rc.nfsd
chmod 755 /etc/rc.d/rc.rpc
/etc/rc.d/rc.nfsd start
/etc/rc.d/rc.rpc start</code>

Export the shares \\
<code>exportfs -a</code>

Check to see if the shares are being shared \\ 
<code>exportfs</code>

====== Client Setup ======
Create the mount point \\ 
<code>mkdir /mnt/nfs_share</code>
Start the RPC daemon \\ 
<code>chmod 755 /etc/rc.d/rc.rpc
/etc/rc.d/rc.rpc start</code>


====== Mounting ======
On the CLIENT machine, you have 3 options here: manually mounting, auto-mount at boot, or semi-auto mount

**MANUALLY MOUNT** \\ 
<code>mount my.nfs.server:/nfs_share /mnt/nfs_share</code>

**AUTO-MOUNT AT BOOT** \\
Add the mount command to /etc/fstab \\
<code> vi /etc/fstab</code>
add: \\ 
<file sh /etc/fstab>my.nfs.server:/nfs_share /mnt/nfs_share nfs rw,defaults 0 0</file>

**SEMI-AUTO-MOUNT** \\ 
Add the mount command to /etc/fstab \\
<code> vi /etc/fstab</code>
add: \\ 
<file sh /etc/fstab>my.nfs.server:/nfs_share /mnt/nfs_share nfs rw,noauto 0 0</file>
then when you want to mount, just run: \\ 
<code>mount /mnt/nfs_share</code>

**NOTE ABOUT AUTO_MOUNTING** \\ 
If you mount at boot and the server machine is unavailable, it will cause your client machine to take a long time to boot as the NFS client will make multiple attempts to connect and you will have to wait for it to time-out for each attampt. \\ 


====== For The Impatient ====== 
All the steps with no explanation: \\ 
**SERVER:** \\ 
<code>echo "/SHARED_DIR YOUR_SUBNET/24(rw,sync,no_subtree_check)" >> /etc/exports
chmod 755 /etc/rc.d/rc.nfsd
chmod 755 /etc/rc.d/rc.rpc
/etc/rc.d/rc.nfsd start
/etc/rc.d/rpc start
exportfs -a</code>

**CLIENT:** \\ 
<code>mkdir /mnt/nfs_share
chmod 755 /etc/rc.d/rc.rpc
/etc/rc.d/rc.rpc start
echo "YOUR_NFS_SERVER:/SHARED_DIR /CLIENT_MOUNT_POINT nfs rw,defaults 0 0" >> /etc/fstab
mount /CLIENT_MOUNT_POINT
</code>

====== Problems/Solutions ======

PROBLEM: NFS shares won't mount on client box with a "Stale NFS file handle" error.\\ 
SOLUTION: \\ 
1) Forcibly unmount the directory on the CLIENT machine (if mounted):
<code>umount -f /mnt/nfs_share</code>
2) Flush the NFS registry on the SERVER machine:
<code>exportfs -f</code>
3) Remount the NFS share




====== Sources ======
<!-- If you are copying information from another source, then specify that source -->
<!-- * Original source: Banging my head in frustration and figuring it out. -->
<!-- Authors are allowed to give credit to themselves! -->
 * Originally written by [[wiki:user:arfon | arfon]]
<!-- * Contributions by [[wiki:user:yyy | User Y]] -->

<!-- Please do not modify anything below, except adding new tags.-->
<!-- You must remove the tag-word "template" below before saving your new page -->
{{tag>howtos software nfs slackware_13.37 slackware_14.0 slackware_14.1 author_arfon}}

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