1. On nfs server, perform the following
[root@bishal certs]# vi /etc/exports
/home *(rw,sync)
[root@bishal certs]# exportfs -r
[root@bishal certs]# exportfs
/opt/OS_Image <world>
/home <world>
[root@bishal certs]#
[root@bishal prema]# groupadd -g 1050 dba
[root@bishal prema]# useradd -u 1050 -g 1050 gagan
[root@bishal prema]# passwd gagan
Changing password for user gagan.
New password:
BAD PASSWORD: The password fails the dictionary check - it is based on a dictionary word
Retype new password:
passwd: all authentication tokens updated successfully.
2. On Client system, perform the following tasks
[root@prema ~]# showmount -e 192.168.10.238
clnt_create: RPC: Port mapper failure - Unable to receive: errno 113 (No route to host)
[root@prema ~]# showmount -e 192.168.10.238^C
[root@prema ~]# mount 192.168.10.238:/home /mnt
[root@prema ~]# df -h /mnt
Filesystem Size Used Avail Use% Mounted on
192.168.10.238:/home 18G 14G 4.6G 75% /mnt
[root@prema ~]#
3. Setting up auto-fs
Now, remove all the content from home directory on client system.
[root@prema home]# mkdir /var/tmp/all
[root@prema home]# ls
ahn all bau bishal dev kamal niv pradip prema ram sam
[root@prema home]# mv * /var/tmp/all
[root@prema home]# ls -l
total 0
[root@prema home]# pwd
/home
[root@prema home]# vi /etc/auto.master
/home /etc/home.autofs
:wq
[root@prema home]# vi /etc/home.autofs
prema 192.168.10.238:/home/prema
[root@prema home]# groupadd -g 1050 dba
[root@prema home]# useradd -u 1050 -g 1050 gagan
useradd: cannot create directory /home/gagan
[root@prema home]# ls
[root@prema home]# pwd
/home
[root@prema home]# passwd gagan
Changing password for user gagan.
New password:
BAD PASSWORD: The password fails the dictionary check - it is based on a dictionary word
Retype new password:
passwd: all authentication tokens updated successfully.
Now, login to the system with respective users
[root@prema home]# vi /etc/auto.master
[root@prema home]# vi /etc/home.autofs
[root@prema home]# cat /etc/home.autofs
* 192.168.10.238:/home/&
[root@prema home]# systemctl restart autofs
[root@prema home]# echo $?
0
[root@prema home]# pwd
/home
[root@prema home]# ls
[root@prema home]# cd /
[root@prema /]# cd /home
[root@prema home]# ls
gagan prema
[root@prema home]# pwd
/home
[root@prema home]# pwd
/home
[root@prema home]# ls
bishal gagan pradip prema
[root@prema home]#
[root@prema /]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/sda3 18G 4.0G 14G 23% /
devtmpfs 898M 0 898M 0% /dev
tmpfs 912M 156K 912M 1% /dev/shm
tmpfs 912M 9.2M 903M 2% /run
tmpfs 912M 0 912M 0% /sys/fs/cgroup
/dev/sda1 297M 152M 146M 51% /boot
/dev/mapper/datavg-datavol 2.0G 33M 2.0G 2% /opt/oracle
tmpfs 183M 20K 183M 1% /run/user/1000
tmpfs 183M 0 183M 0% /run/user/0
192.168.10.238:/home 18G 14G 4.6G 75% /mnt
tmpfs 183M 0 183M 0% /run/user/1050
192.168.10.238:/home/gagan 18G 14G 4.6G 75% /home/gagan
192.168.10.238:/home/prema 18G 14G 4.6G 75% /home/prema
192.168.10.238:/home/bishal 18G 14G 4.6G 75% /home/bishal
192.168.10.238:/home/pradip 18G 14G 4.6G 75% /home/pradip
192.168.10.238:/home/kamal 18G 14G 4.6G 75% /home/kamal
[root@prema /]#
4. Disable autofs
[root@prema /]# systemctl stop autofs
[root@prema /]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/sda3 18G 4.0G 14G 23% /
devtmpfs 898M 0 898M 0% /dev
tmpfs 912M 156K 912M 1% /dev/shm
tmpfs 912M 9.2M 903M 2% /run
tmpfs 912M 0 912M 0% /sys/fs/cgroup
/dev/sda1 297M 152M 146M 51% /boot
/dev/mapper/datavg-datavol 2.0G 33M 2.0G 2% /opt/oracle
tmpfs 183M 20K 183M 1% /run/user/1000
tmpfs 183M 0 183M 0% /run/user/0
192.168.10.238:/home 18G 14G 4.6G 75% /mnt
tmpfs 183M 0 183M 0% /run/user/1050
[root@prema /]#
5. Restore original home directory contents
# cd /home; mv /var/tmp/all/* .
or
[root@prema home]# pwd
/home
[root@prema home]# tar -xvzf /var/tmp/home-content.tar.gz
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