Ubuntu deployed NFS installation service

A server-side:

1.1 Installation Services for NFS:

# Execute the following command to install the NFS server, 
#apt will automatically install nfs - the Common, the rpcbind other 13 packages
 sudo APT install nfs-Kernel-Server

1.2 write configuration file:

# Edit / etc / exports file:
 sudo vim / etc / exports 
# / etc / content exports file is as follows:
 / the Data / use * (rw, Sync , no_subtree_check, no_root_squash)

Resolution:

/ Data / use - NFS server directory, and for sharing client nfs

* - allows all network access, you can also use specific IP

rw-- mount this directory client has read and write permissions to the shared directory

sync-- written to memory and hard drive data synchronization

no_root_squash - root user has full administrative access to the root directory

no_subtree_check-- not check the permissions of the parent directory

1.3 Create a shared directory

# Create / data / server-side use shared directory
 sudo  mkdir -p / data / use

1.4 Restart nfs service:

sudo service nfs-kernel-server restart

1.5 tool commonly used commands:

# When you install the NFS server already contains commonly used command-line tool, without additional installation. 
# Display client machine to mount the machine nfs directory. 
sudo showmount - E localhost 

# the directory configuration file to re-export all the time! Without having to restart the service. 
the sudo the exportfs - RV 

# view the operating state of NFS 
the sudo the nfsstat 

# view rpc execution information may be used to detect the operation rpc 
the sudo the rpcinfo 

# view the network port, the default is to use the NFS port 111. 
sudo netstat -tu - 4

Second, the client:

2.1 Installing client tools:

# On the need to connect to the server NFS client machine, 
# need to execute the following command to install nfs - the Common package. 
#apt will automatically install nfs - the Common, the rpcbind in 12 packages
 sudo APT install nfs-the Common

2.2 view shared directory on the NFS server

# Displays the specified (HCG-BG-AS- 01 ) Export out on the NFS server 
#hcg -bg-AS- 01 to the server host name or IP address of the
 sudo showmount -e HCG-BG-AS- 01

2.3 Create a local mount directory

sudo mkdir -p /data/use

 2.4 mount the shared directory

# The NFS server 192. 168.3 directory on the .167, mount to the local / data / use / directory
 Mount -t nfs HCG-BG-AS- 01 : / data / use / the Data / use 

Mount -t nfs - O Sync , HCG-NFS-safe locking noac 01 : / Data / FreeSWITCH / Data / FreeSWITCH

2.4 automatically mount

vim /etc/fstab
hcg-nfs-01:/data/freeswitch /data/freeswitch nfs defaults 0 0
hcg-nfs-01:/data/freeswitch /data/freeswitch nfs sync,noac 0 0

# Note: nfs-common is not installed or nfs-kernel- machine server package, 
# perform showmount, exportfs, nfsstat, rpcinfo commands directly, the 
# system will give prompt and friendly, 
# such as direct showmount will prompt APT need to do sudo install NFS-safe locking the Common command, 
# such as direct rpcinfo will prompt you need to perform APT sudo install the rpcbind command.

appendix

NFS common parameters 
ro-- read-only access 
rw-- write access 
Sync - all data written to the shared When requested 
async - nfs in response to the request before the write data can be 
secure - nfs 1024 through the secure the TCP / the IP port to send 
insecure - nfs sent through the port above 1024 
if more than one user to be written nfs directory, the grouping write wdelay-- (default) 
no_wdelay-- If multiple users want to write nfs directory, write immediately when using the async, without this setting 
hide-- does not share its subdirectories nfs shared directory 
no_hide-- nfs shared subdirectory of 
subtree_check-- If the shared / usr / bin upon such subdirectory, check forced nfs permissions of the parent directory (the default) 
no_subtree_check-- above relative, do not check the parent directory permissions 
all_squash-- UID and GID mapping file sharing anonymous user anonymous, for the public directory. 
no_all_squash-- reserved share files UID and GID (default) 
root_squash - All root user requests mapped to the same privileges as anonymous users (default) 
no_root_squash - root user has full administrative access to the root directory 
anonuid = xxx-- specify nfs server / etc /passwd file in the anonymous user's UID 
anongid = xxx-- specify nfs server / etc / passwd file in the anonymous user's GID