Configuring CentOS AS VPS(Virtual Private Server)

Cloninig of VM's

Configuring The NAT Gateway

ip addr show(to show the ip address in ens33)

Reboot the Systems.

Queries:Access to all the servers via ssh from the admin host and configure the hostname,create users with password.

ssh root@192.168.233.146
ip addr(verify the ip address)
hostnamectl set-hostname vps-server(set the host name)
exec bash
useradd goutam
passwd goutam

cat /etc/shadow | grep goutam

Configure for server 2
ssh root@192.168.233.147
ip addr(verify the ip address)
hostnamectl set-hostname vps-server(set the host name)
exec bash
useradd goutam
passwd goutam

cat /etc/shadow | grep goutam

Configure static IPv$ Address to all the app servers and database servers.The Access host,(i.e. admin )

ip r

To Configure ip address in Linux

nmtui(network manager text user interface)

Mapped the IP Address to Hostname

• host Command

• dig Command

• nslookup Command

$ sudo yum install bind-utils

su -l
vi /etc/hosts

add the following to the hosts file:

103.234.116.177 IN A test1.linuxreview.co.in
103.234.116.177 IN A mail.test1.linuxreview.co.in 
103.234.116.177 IN A webmail.test1.linuxreview.co.in
test1.linuxreview.co.in. IN MX 10 test1.linuxreview.co.in

ping 103.234.116.177 -t