[Bug 897644] [NEW] rpc.mountd starts without NFSv3 support when not listening on localhost

[Christian Affolter]

Public bug reported:

The nfs-kernel-server init script disables NFSv3 support when the
rpc.nfsd daemon was bound to a specific IP address other than 127.0.0.1
or localhost using the --host <IP> argument.

Steps to reproduce:
1) Edit /etc/default/nfs-kernel-server and bind rpc.nfsd to a specific IP address:
# Options for rpc.nfsd.
RPCNFSDOPTS="--host 192.168.1.XYZ"

2) Restart the NFS kernel daemon service
service nfs-kernel-server restart

3) The rpc.mountd has NFSv3 disabled
ps -C rpc.mountd -o cmd
/usr/sbin/rpc.mountd --port 32767 --no-nfs-version 3


The problem happens in the /etc/init.d/nfs-kernel-server init script on line 115-116 during the rpcinfo check:
                 $PREFIX/bin/rpcinfo -u localhost nfs 3 >/dev/null 2>&1 ||
                    RPCMOUNTDOPTS="$RPCMOUNTDOPTS --no-nfs-version 3"


Environment informations:
lsb_release -rd
Description:	Ubuntu 11.10
Release:	11.10

apt-cache policy nfs-kernel-server
nfs-kernel-server:
  Installed: 1:1.2.4-1ubuntu2
  Candidate: 1:1.2.4-1ubuntu2
  Version table:
 *** 1:1.2.4-1ubuntu2 0
        500 http://ch.archive.ubuntu.com/ubuntu/ oneiric/main amd64 Packages
        100 /var/lib/dpkg/status

** Affects: nfs-utils (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/897644

Title:
  rpc.mountd starts without NFSv3 support when not listening on
  localhost

Status in “nfs-utils” package in Ubuntu:
  New

Bug description:
  The nfs-kernel-server init script disables NFSv3 support when the
  rpc.nfsd daemon was bound to a specific IP address other than
  127.0.0.1 or localhost using the --host <IP> argument.

  Steps to reproduce:
  1) Edit /etc/default/nfs-kernel-server and bind rpc.nfsd to a specific IP address:
  # Options for rpc.nfsd.
  RPCNFSDOPTS="--host 192.168.1.XYZ"

  2) Restart the NFS kernel daemon service
  service nfs-kernel-server restart

  3) The rpc.mountd has NFSv3 disabled
  ps -C rpc.mountd -o cmd
  /usr/sbin/rpc.mountd --port 32767 --no-nfs-version 3

  
  The problem happens in the /etc/init.d/nfs-kernel-server init script on line 115-116 during the rpcinfo check:
                   $PREFIX/bin/rpcinfo -u localhost nfs 3 >/dev/null 2>&1 ||
                      RPCMOUNTDOPTS="$RPCMOUNTDOPTS --no-nfs-version 3"


  Environment informations:
  lsb_release -rd
  Description:	Ubuntu 11.10
  Release:	11.10

  apt-cache policy nfs-kernel-server
  nfs-kernel-server:
    Installed: 1:1.2.4-1ubuntu2
    Candidate: 1:1.2.4-1ubuntu2
    Version table:
   *** 1:1.2.4-1ubuntu2 0
          500 http://ch.archive.ubuntu.com/ubuntu/ oneiric/main amd64 Packages
          100 /var/lib/dpkg/status

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