Find the answer to your Linux question:
Results 1 to 3 of 3
Hi all! I'm running a NFS server for some tests on my ubuntu 10.04, but my server doesn't do file locking. If I try to open the same file from ...
Enjoy an ad free experience by logging in. Not a member yet? Register.
  1. #1
    Just Joined!
    Join Date
    Jul 2010
    Posts
    2

    NFS lock doesn't word


    Hi all!
    I'm running a NFS server for some tests on my ubuntu 10.04, but my server doesn't do file locking.
    If I try to open the same file from different clients it let me do it...but it shouldn't.
    I have installed the nfs-kernel-server package on my server and nfs-common package on my clients.
    I've also noticed that my server doesn't have a "rpc.lockd" installed...is that the problem?

    The output of "rpcinfo -p <myserver_ip>" is:
    program vers proto port
    100000 2 tcp 111 portmapper
    100000 2 udp 111 portmapper
    100024 1 udp 38763 status
    100024 1 tcp 54295 status
    100021 1 udp 52276 nlockmgr
    100021 3 udp 52276 nlockmgr
    100021 4 udp 52276 nlockmgr
    100021 1 tcp 51831 nlockmgr
    100021 3 tcp 51831 nlockmgr
    100021 4 tcp 51831 nlockmgr
    100003 2 udp 2049 nfs
    100003 3 udp 2049 nfs
    100003 4 udp 2049 nfs
    100003 2 tcp 2049 nfs
    100003 3 tcp 2049 nfs
    100003 4 tcp 2049 nfs
    100005 1 udp 60113 mountd
    100005 1 tcp 43255 mountd
    100005 2 udp 60113 mountd
    100005 2 tcp 43255 mountd
    100005 3 udp 60113 mountd
    100005 3 tcp 43255 mountd

    what is wrong?
    I hope someone can help me...and excuse me for my poor english!

    Thanks

  2. #2
    Linux Guru Rubberman's Avatar
    Join Date
    Apr 2009
    Location
    I can be found either 40 miles west of Chicago, in Chicago, or in a galaxy far, far away.
    Posts
    11,596
    NFS and Linux/Unix file locks are advisory only. Unlike Windows, they don't keep you from accessing the files from applications that don't look for the lock.
    Sometimes, real fast is almost as good as real time.
    Just remember, Semper Gumbi - always be flexible!

  3. #3
    Just Joined!
    Join Date
    Jul 2010
    Posts
    2
    I didn't know, thank you very much!
    Bye!

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •