[meetdilip]

Thank you @Dynamo . I hope VestaCP automates the whole process. Let me give it a try.

I saw this guide and it says we need to following things to install VestaCP. Can we do with name servers and A records ? Also, do we need a non root user with sudo privileges ? If so, kindly give the commands to create such an user

    An Ubuntu 14.04 Droplet
    A registered domain name pointed to this Droplet. You can read this series on hostnames for more information.
    An A record pointing example.com to your Droplet's IP
    An A record pointing ns1.example.com to your Droplet's IP
    An A record pointing ns2.example.com to your Droplet's IP
    An A record pointing panel.example.com to your Droplet's IP
    A CNAME record pointing www.example.com to example.com
    Filezilla or another FTP client installed on your computer
    A non-root user with sudo privileges (Initial Server Setup with Ubuntu 14.04 explains how to set this up.)

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You can start with these:
https://post4vps.com/thread-205.html
https://post4vps.com/thread-207.html

But a good and simple tutorial for firewalls that's I would like to read too.

Thank you @Dudi . I will give it a try. And, sorry I ran out of reputations at this time. Will add them soon.