What is IP? 255.255.255.0

IP (Internet Protocol) is a widely used term of network world. It is most popular protocol of TCP/IP. In 1970 IP was developed. The primary role of IP is to provide logical address and Structured networking and support the routine of traffic to its destination. Now a new generation IP is on demand. IP supports the ability to send to a group via multi casting.  IP provides the network layer addressing and function for the TCP/IP protocol stack.

Internet Protocol:

If a device want to communicate using TCP/IP, its needs an IP address. When the device has an IP address, its able to send and receive IP Packets any device that can send and receive IP packets its called IP host.

IP address consist of 32 bit number, usually written in dotted decimal notation. The decimal part of the term comes from the fact that each byte (8 bits) of the 32 bit IP address shown as decimal equivalent. The four resulting decimal number are written in sequence, with dots or decimal points.

example :  192.168.0.1 is an IP address written in dotted decimal form, but actually binary version is 11000000 10101000 00000000 00000001

each 8 bit block is converted to decimal and the decimal value are separated with periods or dots.

SSL (SECURE SOCKET LAYER)

WHAT IS SSL?

SECURE SOCKET LAYER

SSL is a security protocol that is used on the Internet. Which was developed by Netscape and is supported by all popular WEB BROWSER. '

SSL used public key encryption to establish secure connections over the internet. SSL widely used on the Internet for Web Transaction such as sending credit card/ Debit card card / Other important data etc.

SSL can be utilized for other protocols as well, such as TELNET, FTP (File Transfer Protocol), LDAP (Lightweight Directory Access Protocol), IMAP (Internet Message Access Protocol) and STMP (Simple Mail Transfer Protocol), BUT THESE ARE NOT COMMONLY USED.

SSL PROVIDES THREE KEY SERVICES:

SEVER AUTHENTICATION SSL:

It allows a user to confirm a server's identity. For example, you can use this ability when you are purchasing something online with a Credit Card or Debit Card but first want to verify the server's identity.

CLIENT AUTHENTICATION SSL:

It allows a server to conform a user identity. This functionality is often used when a server sending sensitive information such as banking information or secure document to a client system and wants to verify the client's identity.

ENCRYPTED CONNECTIONS:

It is possible to configure SSL to require all information sent between a client and a server to be encrypted by the sending software and decrypted by the receiving software. Doing this establishes private and secure communication between two devices.

SSL has a mechanism to determine whether the data sent has been tampered with or altered in transit.

SSL can work only with guaranteed transports- or basically anything using TCP protocol. It is made up of the two Protocols, as follows:

SSL Handshake: 

It is used to create a secure session between the two system that are communicating.

This includes all methods and parameters for the encryption.

SSL RECORD:

It is used to encrypt all data packets, including the SSL HANDSHAKE data packets.