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howtos:network_services:nfs-quick_and_dirty_setup [2014/01/20 23:07 (UTC)] arfon created ! |
howtos:network_services:nfs-quick_and_dirty_setup [2019/10/08 04:38 (UTC)] (current) bassmadrigal Fix filename typo per Skaendo on LQ forum |
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| <!-- Add your text below. We strongly advise to start with a Headline (see button bar above). --> | <!-- Add your text below. We strongly advise to start with a Headline (see button bar above). --> | ||
| - | Known to work on Slackware 14 & 14.1 \\ | + | ====== NFS - Quick and Dirty Setup ====== |
| + | |||
| + | Known to work on Slackware 14, 14.1 and 14.2 \\ | ||
| ====== Assumptions ====== | ====== Assumptions ====== | ||
| Line 17: | Line 19: | ||
| <code>vi /etc/exports</code> | <code>vi /etc/exports</code> | ||
| add: \\ | add: \\ | ||
| - | <code>/nfs_share 192.168.1.1/24(rw,sync,no_subtree_check)</code> | + | <file sh /etc/exports>/nfs_share 192.168.1.1/24(rw,sync,no_subtree_check)</file> |
| Start the NFS and RPC daemons \\ | Start the NFS and RPC daemons \\ | ||
| Line 23: | Line 25: | ||
| chmod 755 /etc/rc.d/rc.rpc | chmod 755 /etc/rc.d/rc.rpc | ||
| /etc/rc.d/rc.nfsd start | /etc/rc.d/rc.nfsd start | ||
| - | /etc/rc.d/rpc start</code> | + | /etc/rc.d/rc.rpc start</code> |
| Export the shares \\ | Export the shares \\ | ||
| Line 34: | Line 36: | ||
| Create the mount point \\ | Create the mount point \\ | ||
| <code>mkdir /mnt/nfs_share</code> | <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> | ||
| Line 46: | Line 51: | ||
| <code> vi /etc/fstab</code> | <code> vi /etc/fstab</code> | ||
| add: \\ | add: \\ | ||
| - | <code>my.nfs.server:/nfs_share /mnt/nfs_share nfs rw,defaults 0 0</code> | + | <file sh /etc/fstab>my.nfs.server:/nfs_share /mnt/nfs_share nfs rw,defaults 0 0</file> |
| **SEMI-AUTO-MOUNT** \\ | **SEMI-AUTO-MOUNT** \\ | ||
| Line 52: | Line 57: | ||
| <code> vi /etc/fstab</code> | <code> vi /etc/fstab</code> | ||
| add: \\ | add: \\ | ||
| - | <code>my.nfs.server:/nfs_share /mnt/nfs_share nfs rw,noauto 0 0</code> | + | <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: \\ | then when you want to mount, just run: \\ | ||
| <code>mount /mnt/nfs_share</code> | <code>mount /mnt/nfs_share</code> | ||
| Line 67: | Line 72: | ||
| chmod 755 /etc/rc.d/rc.rpc | chmod 755 /etc/rc.d/rc.rpc | ||
| /etc/rc.d/rc.nfsd start | /etc/rc.d/rc.nfsd start | ||
| - | /etc/rc.d/rpc start | + | /etc/rc.d/rc.rpc start |
| exportfs -a</code> | exportfs -a</code> | ||
| **CLIENT:** \\ | **CLIENT:** \\ | ||
| <code>mkdir /mnt/nfs_share | <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 | echo "YOUR_NFS_SERVER:/SHARED_DIR /CLIENT_MOUNT_POINT nfs rw,defaults 0 0" >> /etc/fstab | ||
| mount /CLIENT_MOUNT_POINT | mount /CLIENT_MOUNT_POINT | ||
| Line 79: | Line 86: | ||
| PROBLEM: NFS shares won't mount on client box with a "Stale NFS file handle" error.\\ | PROBLEM: NFS shares won't mount on client box with a "Stale NFS file handle" error.\\ | ||
| - | SOLUTION: | + | SOLUTION: \\ |
| - | 1) Forcibly unmount the directory on the CLIENT machine (if mounted): <code>umount -f /mnt/nfs_share</code> | + | 1) Forcibly unmount the directory on the CLIENT machine (if mounted): |
| - | 2) Flush the NFS registry on the SERVER machine: <code>exportfs -f</code> | + | <code>umount -f /mnt/nfs_share</code> |
| - | 3) Remount the NFS share | + | 2) Flush the NFS registry on the SERVER machine: |
| - | + | <code>exportfs -f</code> | |
| + | 3) Remount the NFS share | ||
| + | 4) No Root Squash: | ||
| + | There are many options for NFS and I want to keep this article short but effective so I am leaving out many of the various configuration items that you could do. However there is one option that is worth mentioning, **no_root_squash**. By default NFS will downgrade any files created with the root permissions to the nobody user. This is a security feature that prevents privileges from being shared unless specifically requested. | ||
| + | If I create a file as the root user on the client on the NFS share, by default that file is owned by the nobody user. | ||
| + | <code> | ||
| + | root@client:~# touch /shared/nfs1/file2 | ||
| + | root@server:/nfs# ls -la file2 | ||
| + | -rw-r--r-- 1 nobody nogroup 0 Nov 18 18:06 file2 | ||
| + | </code> | ||
| + | Sometimes it is important to share files that are owned as root with the proper permissions, in these cases this can be done by simply adding the **no_root_squash** attribute to the **/etc/exports** configuration. | ||
| + | **Edit the /etc/exports file:** | ||
| + | <code> | ||
| + | /nfs_share 192.168.1.1/24(rw,sync,no_root_squash) | ||
| + | </code> | ||
| ====== Sources ====== | ====== Sources ====== | ||
| <!-- If you are copying information from another source, then specify that source --> | <!-- If you are copying information from another source, then specify that source --> | ||
