Ubuntu HPC NIS server setup on master node

Install NIS packages and give nis domain name
```
apt -y install nis nscd
```
During installation enter private domain name for NIS
Configure this server as NIS master server by editing '/etc/default/nis' and updating below two parameter values:
```
NISSERVER=master
NISCLIENT=false
```
Disable access to everyone and Allow NIS server access to sepecific subnet by editing '/etc/ypserv.securenets' as:
```
255.255.255.0	   <private-network-address>
#0.0.0.0            0.0.0.0
```
Initiate NIS database using
```
/usr/lib/yp/ypinit -m
```
When prompted with 'When you are done with the list, type a <control D>.', press 'Ctrl+D'.
Confirm 'y' on 'Is this correct? [y/n: y' prompt.
Restart NIS service
```
systemctl restart rpcbind nis
```

Create user with home folder under /export/home

useradd -m  -d  /export/home/user1 -s /bin/bash user1
passwd user1

In future whenever a new user is added to the server, we need to run below command

make -C /var/yp

Anonymous