IPv4 Subnetting

In this article I am explaining IPv4 subnetting in following two situations.

1. Subnetting when given a required number of networks [Example 1]
2. Subnetting when given a required number of hosts [Example 2]

Note : You need to have basics of IPv4 address types and basics of subnetting

Example 1 :

You have a Class C network range 210.20.1.0 and need to break it into 20 separate networks.

Note : Here you have the information about number of nerworks you needed.

Solution : 

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Why do I need an owned IP for my own SSL certificate?

The following article will explain, why you need a dedicated IP for making an SSL certified domain.

The reason you must have your own IP address when you want to use your own SSL certificate (when you don’t want the server wide shared certificate) is because of the way SSL and apache (httpd) works.
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