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What is TCP/IP?

Do you always find yourself searching on the internet. It is actually amazing thinking about the way on how the internet really works. It simply feels like magic the way in which a person could connect to the internet, make their researches, watch out for videos and more. How can this be a thing possible? Well, thanks to the TCP/IP or the Transmission Control Protocol/Internet Protocol.

The TCP/IP have been developed in the year 1978, which has been also driven by Bob Kahn and Vint Cerf. These days, the TCP/IP is also a useful kind of language that governs the communications among the entire computers that are also on the Internet. On the other hand, the TCP/IP is a separate kind of protocols, though they are being used together. The standard of Internet Protocol simply dictates the way on how packets of the information are being set out for over the networks. The internet protocol has its packet-addressing method that mainly lets any sort of computer on the Internet and forward a packet into another computer which is mainly a step or something that is closer into the recipient of the packet.

Moreover, the TCP also makes it sure that the data transmission is also reliable around the networks connected to the Internet.

What is an IP?

Have you always connected your net accessible gadgets to the internet? You must have heard IP and already know that it means Internet Protocol. However, do you really have any idea about what it really is? IP is the primary protocol of the network being used online. It has been developed in the year 1970. IP also supports the unique addressing for the computers on a certain network. Most of these networks are using Internet Protocol in version 4 with the standard featuring the addresses that are about 16 bytes in length.

The data on the Internet Protocol network is being organized into the packets. Every IP Packet mainly includes both of the header which is used for specifying the destination, source and any other information regarding the data as well as the data of the message itself. Moreover, the IP simply functions of the third layer of the OSI Model. Thus, it could run on the top of various interfaces of data including WI-Fi and Ethernet. It only means that Internet Protocol is one of the essential matters when it comes to connecting to the internet. Moreover, upon the internet and any other networks, Internet Protocol is frequently used together with the TCP or the Transport Control Protocol and known together as TCP/IP.

What is a Protocol?

Simply imagine the number of people who are communicating across the world. They are using up various languages and different machines and even uses up different software in order to transmit data. If there are no standards, communication around the world would never be possible. Well, one of the tools being used for transmitting data is the protocol? So, what is the protocol? It is actually used for the reliable transmission of data for every the network. The HTTP or the HyperText Transfer Protocol being used for transmitting as well as displaying the information in the form of web pages across the browsers on the internet.

On the other hand, there are three kinds of Protocol, here are those:

• TCP- known as the Transmission Control Protocol that uses a good set of rules in order to exchange the messages with any other internet points at the packet level of information.
• IP- known as Internet Protocol that uses a good set of rules in order to send and receive messages at the address level of the internet.
• FTP or HTTP- stands for File Transfer Protocol or Hypertext Transfer Protocol that has their own defined set of rules to use with the corresponding programs anywhere else on the net.

Knowing the different types of protocol could help you understand about on how they are being used.

What is SMTP?

SMTP or the Simple Mail Transfer Protocol is a set of communication guidelines that lets software to transmit email through the internet. Most of the email software is being designed to use this kind of protocol for the purpose of communications hen sending emails and it would only work for the outgoing messages. Whenever the people set up their email programs, they would usually have the need of giving the address of the SMTP server internet provider or the outgoing mails. Moreover, there two other kinds of protocol that you could have. These are the IMAP and the POP3, which have been used for retrieving as well as storing the emails.

On the other hand, the SMTP gives out a good set of codes that would make the email message communication easy in between the servers. It is even a kind of shorthand, letting the server to just break various parts of the message into the categories in which the other server could surely understand. Any sort of email message has the recipient , the sender or even with multiple recipients, the message body and the title heading. From the user’s perspective, when they try to write an email message, they would then look up for the slick interface of the email software, yet when the email goes out to the internet, everything would turn into the strings of text.

What is HTTP and How does it Work?

The HTTP or the Hypertext Transfer Protocol is the main system that everyone uses in order to get access in the massive volumes or videos, text as well as images being stored all throughout the internet or upon our employer’s intranet. Imperatively, it lets your browsers and the servers that you use to get access to the internet. This is for you to know what you have been looking for and where you should send the information. Generally, the websites have http:// right at the beginning of the URL or the Uniform Resource Locator address. Whenever you enter the URL in the web browser, the browser will then send out a certain data request for the information being stored under the certain address, which will then be transferred back to you. Thus, your browser would interpret the data and then displays it for you in the right manner.

These days, a lot of websites have their https:// listed the prefix of the URL. It mainly stands for the HTTP secure and only means that the website page would be transmitted with the encryption. The banks as well as the other business websites are concerned about the security in the net and could just use the HTTPS type of protocol instead of those in which people have been used to.

What is SSL?

The SSL or the Secure Sockets Layer is a highly used protocol for managing the security of the internet message transmission. Recently, it has been succeeded by the Transport Layer Security based on the SLL. Moreover, SSL uses a program layer in between the HTTP (Hypertext Transfer Protocol) and the TCP (Transport Control Protocol) layers. The SSL is included as part of both the Netscape or the Microsoft browsers and most of the products on the Web server.

The SSL, being developed by the Netscape has gained greater support of the Microsoft as well as the other Internet server or client developer and then became the actual standard right until evolving into the Transport Layer Security. Apart from those, the sockets, as part of the term mainly refers to the method of sockets when it comes to passing the data back and forth in between the server program and the client in the network or even in between the program layers in similar computer. The SSL makes use of the private public key encryption system from the RSA that mainly includes the use of the digital certificate. Both SSL and TLS are integral parts of most of the web browsers as well as the servers.

What is SNMP?

The SNMP or the Simple Network Management Protocol is a standard TCP/IP protocol for the network management. Network administrators are using this kind of protocol in order to monitor and mainly map the availability of the network, the rates of the error as well as the performance. In order to work with the SNMP, the device of the network would use some sort of distributed data known as the MIB or the Management Information Base. All of the SNMP compliant devices have MIB that supplies the pertinent attributes of the device. Some of the attributes are being fixed into the MIB while the others serve to be the dynamic values that are being calculated by the software that runs on the device.

Some of the software for enterprise network management software are using SNMP commands in order to write and read data in every MIB device. The “GET” commands usually retrieve the data values, while the “SET” commands usually initiate some of the action of the device. For instance, a system reboot script is somewhat implemented in the management software by mainly defining a certain MIB attribute and issue the SNMP SET from the main software that writes the value of “reboot” in that certain attribute.

What is FTP and How Does it Work?

The FTP or the File Transfer Protocol is a kind of protocol being used for transferring files in between devices directly on the internet. It is somewhat useful for those of the larger files and is somewhat robust and capable than those of the HTTP. Well, the HTTP is only used for delivering the web pages as well as the smaller files from the server up to a client in terms of web browsers. For the reason that no special browser is needed, the FTP is far more universal. The entire operating systems you know simply lets FTP file transfers directly from the line of command. However, the graphical programs of the FTP exist and it assists in organizing and facilitating the file transfers between the servers or the clients or even between the network servers, FTP assists the webmasters to publish the files driving the internet.

In order to transfer a certain file from the client to a server or to download a certain file from the server to the computer, the user needs to authenticate or mainly identify himself, most especially when logging on to the FTP kind of transfer or even modify many files as needed. The process of authentication also lets the remote host to set up proper file permissions, keeping up the users from viewing the files or directories in which they do not have any access.

What are ARP and RARP?

The ARP or the Address Resolution Protocol simply enables the IP data packaging to the Ethernet packages. It is even the system as well as the messaging protocol being used to find the hardware address or the Ethernet from a certain number of the Internet Protocol. Without this kind of protocol, the Ethernet package is not able to be generated from the IP package, since the Ethernet address could not be determined that well.

On the other hand, the RARP or the Reverse Address Resolution Protocol is being used to let the computer even without any sort of local permanent data storage media in order to know the IP address from the Ethernet address.

The difference with these two is that, the ARP is being used for mapping the IP network to the hardware address using the data link protocol. The RARP is then a kind of protocol that uses which the physical device on the LAN could appeal in order to find the IP address of the table or cache of the ARP from the gateway server. Thus, the IP address of the destination into the physical address conversation is being done by the ARP by means of LAN broadcasting. However, the physical address of the source for the IP address conversion is being done by RARP.