On Mon, 6 Sep 2010, Bill Tillman wrote:
I have two LAN segments with a FreeBSD server on each.
Server A is 10.0.0.254
Server B is 192.168.0.102
I setup server A has two drives and I setup a share on drive #2 to be shared
via NFS with the both networks. I also made a symlink on drive #2 to a folder
on drive #1
On server B I can nfs_mount the share on server A and see the symlink. But when
I try to access the files in the symlink it shows the link is broken, In other
words no files show up.
On server A I can see the files in the symlink folder just fine.
This is expected NFS behaviour: NFS exports filesystems starting
at a given (exported) mount point.
While there are many reasons for this, think about the security
issues if a user on B could create a symlink on your exported
volume (because the origin of the symlink will make no difference
to the server) to access any file anywhere on A.
If you want both disks 1 and 2 visible, the standard solution
is to export and mount both disks on B. If the paths (absolute
is easiest, but relative can be made to work) are consistent
between A and the mounted image of A's filesystems on B, then
your symlinks will work -- that is, if you have this kind of
/etc/fstab entry, mounting "/disk1" on A to "/disk1" on B:
A:/disk1/somedir /disk1/somedir
A:/disk2 /disk2
then a symlink in /disk1/somedir/link pointing to /disk1/something
will work just fine.
A.
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