NFS Utilities-1.2.5
Kernel
Configuration
Enable the following options in the kernel configuration and
recompile the kernel if necessary:
File systems:
Network File Systems:
NFS File System Support: M or Y
NFS Server Support: M or Y
Select the appropriate sub-options that appear when the above
options are selected.
Installation
of NFS Utilities
Before you compile the program, ensure that the nobody user and nogroup group have been created. You can add
them by running the following commands as the root user:
groupadd -g 99 nogroup &&
useradd -c "Unprivileged Nobody" -d /dev/null -g nogroup \
-s /bin/false -u 99 nobody
![[Note]](../images/note.png)
Note
The classic uid and gid values are 65534 which is also -2 when
interpreted as a signed 16-bit number. These values impact other
files on some filesystems that do not have support for sparse
files. The nobody and
nogroup values are relatively
arbitrary. The impact on a server is nil if the exports file is configured correctly. If it is
misconfigured, an ls
-l or ps listing will show a uid or
gid number of 65534 instead of a name. The client uses
nobody only as the user running
rpc.statd.
Install NFS Utilities by running
the following commands:
LIBS=-lpthread ./configure --prefix=/usr \
--sysconfdir=/etc \
--disable-nfsv4 \
--disable-nfsv41 \
--disable-gss &&
make
If your /usr directory is NFS
mounted, you should install the executables in /sbin by passing an additional parameter
--sbindir=/sbin to the above
./configure command.
This package does not come with a test suite.
Now, as the root user:
make install
Command Explanations
--disable-nfsv4 and
--disable-nfsv41: Disables
support for NFS version 4 and version 4.1.
--disable-gss: Disables
support for RPCSEC GSS (RPC Security).
Configuring NFS Utilities
Server Configuration
/etc/exports contains the exported
directories on NFS servers. Refer to the exports.5 manual page for the syntax of this
file. Also refer to the "NFS HowTo" available at http://nfs.sourceforge.net/nfs-howto/
for information on how to configure the servers and clients in a
secure manner. For example, for sharing the /home directory over the local network, the
following line may be added:
/home <192.168.0.0/24>(rw,subtree_check,anonuid=99,anongid=99)
Install the /etc/rc.d/init.d/nfs-server init script
included in the blfs-bootscripts-20111226 package to
start the server at boot.
make install-nfs-server
Now create the /etc/sysconfig/nfs-server configuration file:
cat > /etc/sysconfig/nfs-server << "EOF"
PORT="2049"
PROCESSES="8"
QUOTAS="no"
KILLDELAY="10"
EOF
Note
The above parameters may be optionally placed in /etc/sysconfig/rc.site.
tcpwrappers
Configuration
If you have TCP Wrappers-7.6 installed and
there is a restrictive /etc/hosts.deny file, ensure you have an
entry in the /etc/hosts.allow
file for access from the rpcbind daemon. See the man page in
section 5 for hosts_access for details on creating appropriate
rules.
Client Configuration
/etc/fstab contains the directories
that are to be mounted on the client. Alternately the partitions
can be mounted by using the mount command with the proper
options. To mount the /home and
/usr partitions, add the following
to the /etc/fstab:
<server-name>:/home /home nfs rw,_netdev,rsize=8192,wsize=8192 0 0
<server-name>:/usr /usr nfs ro,_netdev,rsize=8192 0 0
Note
The following boot script is not required if the nfs-server
script is installed.
Install the /etc/rc.d/init.d/nfs-client init script
included in the blfs-bootscripts-20111226 package to
start the client services at boot.
make install-nfs-client
To automatically mount nfs
filesystems, clients will also need to install the netfs bootscript as described in Configuring for Network
Filesystems.
Contents
Installed Programs:
exportfs, mountstats, mount.nfs,
mount.nfs4 (link to mount.nfs), nfsiostat, nfsstat, rpc.mountd,
rpc.nfsd, rpc.statd, rpcdebug, showmount, sm-notify,
start-statd, umount.nfs (link to mount.nfs), and umount.nfs4
(link to mount.nfs)
Installed Libraries:
None
Installed Directories:
/var/lib/nfs
Short Descriptions
|
exportfs
|
maintains a list of NFS exported file systems.
|
|
mountstats
|
displays NFS client per-mount statistics.
|
|
mount.nfs
|
Used to mount a network share using NFS
|
|
mount.nfs4
|
Used to mount a network share using NFSv4
|
|
nfsiostat
|
Report input/output statistics for network filesystems.
|
|
nfsstat
|
displays statistics kept about NFS client and server
activity.
|
|
rpc.mountd
|
implements the NFS mount protocol on an NFS server.
|
|
rpc.nfsd
|
implements the user level part of the NFS service on the
server.
|
|
rpc.statd
|
is used by the NFS file locking service. Run on both
sides, client as well as server, when you want file
locking enabled.
|
|
rpcdebug
|
sets or clears the kernel's NFS client and server debug
flags.
|
|
showmount
|
displays mount information for an NFS server.
|
|
sm-notify
|
is used to send Network Status Monitor reboot messages.
|
|
start-statd
|
is a script called by nfsmount when mounting a filesystem
with locking enabled, if statd does not appear to be
running. It can be customised with whatever flags are
appropriate for the site.
|
|
umount.nfs
|
Used to unmount a network share using NFS
|
|
umount.nfs4
|
Used to unmount a network share using NFSv4
|
Last updated on 2011-12-05 05:42:37 +0000