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potuz
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Joined: 30 Jan 2010
Posts: 378
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 Posted: Sun Jul 02, 2017 1:57 pm Post subject: [SOLVED]nfs mounts ok, but no files are shown and permission |
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Hi, I'm new to nfs and in need of help cause I cant get my folder to be shared. Running without a firewall
The server has
| Code: | root@whiskey ~ #cat /etc/exports
# /etc/exports: NFS file systems being exported. See exports(5).
/srv/nfs 192.168.1.0/24(rw,fsid=root,no_subtree_check)
/srv/nfs/pictures 191.168.1.0/24(rw,nohide,no_subtree_check)
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The pictures folder is a mount --bind to another folder on disk with the following permissions:
| Code: |
#ls -al /srv/nfs/
total 12
drwxr-xr-x 3 root root 4096 Jul 2 06:50 .
drwxr-xr-x 3 root root 4096 Jul 2 06:50 ..
drwxrwx--- 21 root photo 4096 Jan 24 2015 pictures
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And the exports are shown fine here:
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#exportfs -v
/srv/nfs 192.168.1.0/24(rw,wdelay,root_squash,no_subtree_check,fsid=0,sec=sys,rw,secure,root_squash,no_all_squash)
/srv/nfs/pictures
191.168.1.0/24(rw,wdelay,nohide,root_squash,no_subtree_check,sec=sys,rw,secure,root_squash,no_all_squash)
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Now on the client side I run
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rye ~ # mount whiskey:/pictures /media/pictures/
rye ~ # mount | grep pictures
whiskey:/pictures on /media/pictures type nfs4 (rw,relatime,vers=4.0,rsize=131072,wsize=131072,namlen=255,hard,proto=tcp,timeo=600,retrans=2,sec=sys,clientaddr=192.168.1.143,local_lock=none,addr=192.168.1.19)
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So that the mount seems fine. I can check the connection on the server with
| Code: |
#netstat -tn | grep 2049
tcp 0 0 192.168.1.19:2049 192.168.1.143:730 ESTABLISHED
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However ls /media/pictures does not show any files. And attempting to write to disk gives a permission error. Also the directory itself does not have the same permissions shown above:
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rye ~ # echo "hola" > /media/pictures/hola.txt
-bash: /media/pictures/hola.txt: Permission denied
# ls -al /media/
total 12
drwxr-xr-x 3 root root 4096 Jul 2 07:23 .
drwxr-xr-x 22 root root 4096 Jun 28 21:28 ..
-rw-r--r-- 1 root root 0 Mar 28 10:26 .keep
drwxr-xr-x 2 root photo 4096 Jul 2 06:50 pictures
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(Same if I try with my user in the "photo" group instead of root).
Finally and probably unrelated, if I try to mount with version 3 instead of 4:
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rye ~ # showmount -e whiskey
Export list for whiskey:
/srv/nfs/pictures 191.168.1.0/24
/srv/nfs 192.168.1.0/24
rye ~ # mount -t nfs -o vers=3 whiskey:/srv/nfs/pictures /media/pictures -v
mount.nfs: timeout set for Sun Jul 2 10:55:34 2017
mount.nfs: trying text-based options 'vers=3,addr=192.168.1.19'
mount.nfs: prog 100003, trying vers=3, prot=6
mount.nfs: trying 192.168.1.19 prog 100003 vers 3 prot TCP port 2049
mount.nfs: prog 100005, trying vers=3, prot=17
mount.nfs: trying 192.168.1.19 prog 100005 vers 3 prot UDP port 55246
mount.nfs: mount(2): Permission denied
mount.nfs: access denied by server while mounting whiskey:/srv/nfs/pictures
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And in the server logs:
| Code: | Jul 2 10:55:17 whiskey rpc.mountd[19896]: authenticated mount request from 192.168.1.143:784 for /srv/nfs/pictures (/srv/nfs)
Jul 2 10:55:17 whiskey rpc.mountd[19896]: request to export directory /srv/nfs/pictures below nearest filesystem /srv/nfs
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Any help will be appreciated.
Last edited by potuz on Sun Jul 02, 2017 5:01 pm; edited 1 time in total |
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potuz
Guru
Joined: 30 Jan 2010
Posts: 378
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| Posted: Sun Jul 02, 2017 4:36 pm Post subject: |
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EDIT: Disregard this post, this is simply explained by the original permissions of the directory /srv/nfs/pictures (before the mount --bind option).
Adding a little more info that is really confusing to me: I changed ownership of the export in the server to
| Code: | root@whiskey ~ #ls -alh /srv/nfs/
total 12K
drwxr-xr-x 3 root root 4.0K Jul 2 06:50 .
drwxr-xr-x 3 root root 4.0K Jul 2 06:50 ..
drwxrwx--- 21 potuz potuz 4.0K Jan 24 2015 pictures
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Where the user potuz has
| Code: |
#id potuz
uid=1000(potuz) gid=1000(potuz) groups=1000(potuz),10(wheel),1004(photo)
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And in the client I have
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$ id
uid=1000(potuz) gid=1000(potuz) groups=1000(potuz),7(lp),10(wheel),16(cron),27(video),85(usb),104(wireshark),250(portage),1004(photo)
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But still this happens before and after mounting!
| Code: |
$ ls -alh /media/
total 12K
drwxr-xr-x 3 root root 4.0K Jul 2 12:24 .
drwxr-xr-x 22 root root 4.0K Jun 28 21:28 ..
-rw-r--r-- 1 root root 0 Mar 28 10:26 .keep
drwxr-x--- 2 potuz potuz 4.0K Jul 2 12:24 pictures
$ mount /media/
$ ls -alh /media/
total 12K
drwxr-xr-x 3 root root 4.0K Jul 2 12:24 .
drwxr-xr-x 22 root root 4.0K Jun 28 21:28 ..
-rw-r--r-- 1 root root 0 Mar 28 10:26 .keep
drwxr-xr-x 2 root photo 4.0K Jul 2 06:50 pictures
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Which where the previous owners, this is persistent after reboots, so there's somewhere that nsf is saving status. |
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potuz
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Joined: 30 Jan 2010
Posts: 378
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| Posted: Sun Jul 02, 2017 5:00 pm Post subject: |
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| Solved the problem, I failed to add crossmnt to the list of flags. |
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