VPN and SSH can be used easily and is very helpful for browsing, but don’t think that VPN and SSH service didn’t have problem. Sometimes it is difficult for users to connect to the SSH server and VPN using a host name. When you face this problem, then you can connect to the server using the IP address.
This process requires a converter because host name consists of the alphabet and the converter can change the host name into a numeric IP address. This feature can also be used to find the IP address of website. That's the benefit from convert host to IP addresses