Who manages all the IP Addresses ?

The Internet Assigned Numbers Authority (IANA) manages the IP address space allocations globally, it delegates 5 regional authorities to allocate these.

Different Classes of IP Address

PRIVATE IP ADDRESSES

IP addresses are divided into various classes A, B, or C There are also some private IP addresses put aside for various activities for example internal LAN networks would use these. See list below;IANA-reserved private IPv4 network ranges The three blocks of IP addresses which have been reserved for private networks are:

10.0.0.0 - 10.255.255.255 ;Class A

172.16.0.0 - 172.31.255.255 Class B

192.168.0.0 - 192.168.255.255 Class C

STANDARD IP ADDRESSES

IP Class A addresses are for very large corporations or organisations government etc. A class A IP address starts with a first octet from 1 to 126 all in this range are part of this class. IP class B addresses have first octets with a decimal number from 128 to 191. IP class C addresses have first octets with a decimal number from 192 to 223. Normally ISP are allocated a set of these for their consumers.

Types of Cookie

Session Cookie

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Persistent Cookie

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Secure and HttpOnly Cookies

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