How do I start finding my family roots on paternal side?

I have found some 'relatives' people with same family name on facebook and now I want to organise how to go further in finding my/our family roots on paternal side. How do I start.

What is a VPN?

VPN is (Virtual Private Network) were first used by companies to enable their employees to securely access internal systems such as email remotely (e.g. from home or while on business trips). Today they are increasingly being used for personal use by individuals to protect their privacy while online in public places (e.g. when using the wi-fi connection in a cafe) or in a country where the internet is censored / blocked (e.g. China, Saudi Arabia…).