Hi,
I came across strange "mount" problem on nfs server -- it refuses to
mount it's own directory while other nfs clients able mount nfs server
exported directoryjust fine
1. nfs server
name: install.myclub.com
OS: wheeze (Debian)
ip: 192.168.0.62
/etc/exports: /export/home 192.163.0.0/24(rw,subtree_check)
drxwrxwrxw /export/home
2. client1
name: meteor.myclub.com
OS: Valhalla (Red Hat 7.3)
ip: 192.168.0.1
mount -t nfs install:myclub.com:/export/home /mnt
mounts directory without any error
3. client2
name: moon.myclub.com
OS: squeeze (Debian)
ip: 192.168.0.64
mount -t nfs install:myclub.com:/export/home /mnt
mounts directory without any error
4. client3 (nfs server itself)
name: install.myclub.com
OS: wheeze (Debian)
ip: 192.168.0.62
mount -t nfs 192.168.0.62:/export/home /mnt
mounts directory without any error
5. client4 (nfs server itself)
name: install.myclub.com
OS: wheeze (Debian)
ip: 192.168.0.62
mount -t nfs install:/export/home /mnt
mounts fails with an error
mount -v -t nfs install:/export/home /mnt
mount.nfs: timeout set for Thu Apr 24 01:21:36 2014
mount.nfs: trying text-based options
'vers=4,addr=127.0.1.1,clientaddr=127.0.0.1'
mount.nfs: mount(2): Permission denied
mount.nfs: access denied by server while mounting install:/export/home
mount -v -t nfs install.myclub.com:/export/home /mnt
mount.nfs: timeout set for Thu Apr 24 01:22:50 2014
mount.nfs: trying text-based options
'vers=4,addr=127.0.1.1,clientaddr=127.0.0.1'
mount.nfs: mount(2): Permission denied
mount.nfs: access denied by server while mounting
install.myclub.com:/export/home
The error indicates that when I attempt to mount by using FQDN of nfs
server -- the name resolves to 127.0.1.1 and client resolves to 127.0.0.1 .
cat /etc/hosts
127.0.0.1 localhost
127.0.1.1 install.myclub.com install
If I modify /etc/hosts to
cat /etc/hosts
127.0.0.1 localhost
#127.0.1.1 install.myclub.com install
then
mount -v -t nfs install.myclub.com:/export/home /mnt
mount.nfs: timeout set for Thu Apr 24 01:29:50 2014
mount.nfs: trying text-based options
'vers=4,addr=192.168.0.62,clientaddr=192.168.0.62'
mounts directory without any error, while
mount -v -t nfs install:/export/home /mnt
mount.nfs: timeout set for Thu Apr 24 01:29:27 2014
mount.nfs: trying text-based options
'vers=4,addr=127.0.0.1,clientaddr=127.0.0.1'
mount.nfs: mount(2): Permission denied
mount.nfs: access denied by server while mounting install:/export/home
I do not recall when a record "127.0.1.1" appear in /etc/hosts (Squeezy
and Wheeze both have it) for first time, it is default record added
during installation.
I puzzled and run out of ideas why nfs server is not able to mount own
exported directory. I see that "mount" tries to mount through loopback
and for some inexplicable to me reason it fails. Why does it happen?
What am I missing?
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=719621
--- Quote ------------------------------------------------------
The IP address |127.0.1.1|in the second line of this example may not be
found on some other Unix-like systems. The Debian Installer
<http://en.wikipedia.org/wiki/Debian-Installer>creates this entry for a
system without a permanent IP address as a workaround for some software
(e.g., GNOME) as documented in the bug #719621
<http://bugs.debian.org/719621>.
--- End of Quote -----------------------------------------------
Thank you for any clue how this problem can be fixed.
Andy
