# Configuring CentOS AS VPS(Virtual Private Server)

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### Cloninig of VM's

![](https://cdn.hashnode.com/res/hashnode/image/upload/v1691223856901/82986441-504c-4bd2-bafa-867515292987.png align="center")

![](https://cdn.hashnode.com/res/hashnode/image/upload/v1691223989303/5af9aa7f-bfe5-43ae-94b6-33fddf2a5607.png align="center")

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![](https://cdn.hashnode.com/res/hashnode/image/upload/v1691224071176/452ce53a-ee48-4602-a371-5a658b37a209.png align="center")

### Configuring The NAT Gateway

![](https://cdn.hashnode.com/res/hashnode/image/upload/v1691224133520/21efcd42-3ee4-46ba-b3d5-c5fc296a2ade.png align="center")

![](https://cdn.hashnode.com/res/hashnode/image/upload/v1691224153864/66031c19-f7a1-473a-9eaa-3ddcf702f0c4.png align="center")

```abap
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.

```abap
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
```

```abap
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 )

```abap
ip r
```

To Configure ip address in Linux

```abap
nmtui(network manager text user interface)
```

![](https://cdn.hashnode.com/res/hashnode/image/upload/v1691232939173/c25bf674-77e2-4ed5-9ff3-5c2c05b2af70.png align="center")

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![](https://cdn.hashnode.com/res/hashnode/image/upload/v1691235035411/42ac1a01-45e9-4e96-86ba-d280a0d7346c.png align="center")

### Mapped the IP Address to Hostname

* host Command
    
* dig Command
    
* nslookup Command
    

$ sudo yum install bind-utils

```abap
su -l
vi /etc/hosts
```

add the following to the hosts file:

```abap
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
```